excel if函数两个并列条件怎么用
侧面逻辑函数是和。
IF函数的条件逻辑如下:
=(条件1,条件2),结果1,结果2)
derby 数据库中 TIMESTAMPDIFF函数怎么用
参数,第二和第三参数是TimessTamp类型的时间函数。第一个参数是QuimessTampexpression2-Timestampression1之间的时间差之间的时间差?
写一个函数f 用递归法求n的阶乘,要求在主函数内从键盘输入一个整数,调用f,求其阶乘,并输出n及其阶乘
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
p#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
##include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
c#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
l#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
《#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
s#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
o#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
.#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
h#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
》#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
o#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
l#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
m#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
a#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
v#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
o#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
{#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
p#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
E#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
:#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
s#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
c#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
a#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
%#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
,#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
&#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
p#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
%#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
l#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
\#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
“#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
,#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
0#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
}#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
d#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
o#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
l#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
{#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
i#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
=#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
=#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
0#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
|#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
|#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
=#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
=#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
1#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
1#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
l#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
s#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
e#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
t#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
u#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
*#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
f#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
(#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
n#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
-#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
1#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
)#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
;#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
b#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
r#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
}#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
<#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
/#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
p#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数
>#include s stdio.h》 double f(int n); int main(void){int n;printf(“输入n:”);scanf(“%d”,&n);printf(“%lf \ n”(f(n);返回0;} double f(int n){如果(n == 0 || n == 1)返回1;否则返回n*f(n-1);}-if函数