HG8245C cd/mnt 命令无法使用
看起来你的里面的命令是依赖busybox 的,你先确认下你的busybox 里面有没有cd 命令,好像busybox 里面是没有cd 这个命令的。
如果有的话,你打busybox cd 就可以执行了。
hyde-sun@asus:~$ busybox BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu4) multi-call binary.Copyright (C) 1998-2009 Erik Andersen, Rob Landley, Denys Vlasenkoand others. Licensed under GPLv2.See source distribution for full notice.Usage: busybox [function] [arguments]... or: busybox --list[-full] or: function [arguments]... BusyBox is a multi-call binary that combines many common Unix utilities into a single executable. Most people will create a link to busybox for each function they wish to use and BusyBox will act like whatever it was invoked as.Currently defined functions: [, [[, acpid, addgroup, adduser, adjtimex, ar, arping, ash, awk, basename, blockdev, brctl, bunzip2, bzcat, bzip2, cal, cat, chgrp, chmod, chown, chroot, chvt, clear, cmp, cp, cpio, crond, crontab, cut, date, dc, dd, deallocvt, delgroup, deluser, df, diff, dirname, dmesg, dnsdomainname, dos2unix, dpkg, dpkg-deb, du, dumpkmap, dumpleases, echo, ed, egrep, eject, env, expand, expr, false, fbset, fdflush, fdisk, fgrep, find, fold, free, freeramdisk, fsck.minix, ftpget, ftpput, getopt, getty, grep, gunzip, gzip, head, hexdump, hostid, hostname,
ExecuteScalar 要求已打开且可用的连接
从错误上来看就是在执行ExecuteScalar查询的时候你的数据库连接已经关闭了。没有打开也就是没有con.Open(); 你调试一下,看是执行到哪里报错的
如何降低电脑cpu使用率
降低电脑的cpu使用率只需要关闭不必要的程序就可以了,因为cpu主要是用来处理数据的,而程序越多需要处理的数据也就越多,因此减少运行的程序就可以降低cpu的使用了!