linux下怎样实现WaitForSingleObject的功能？extjs gridpanel columnmodel能换行显示吗

　　windows的WaitForSingleObject这个接口超级混乱,等线程用 pthread_join,等semphore用 sem_wait等mutex用 pthread_mutex_lockwindows偏要做大而全, 让人很无奈.

在extjs3中，大家知道用myGrid.getColumnModel().setHidden(i,true);但到了4.0后，已经没有getColumnModel这个方法了，我们在Ext.panel.Table看到以下片段if (headerCtCfg instanceof Ext.grid.header.Container) { me.headerCt = headerCtCfg; me.headerCt.border = border; me.columns = me.headerCt.items.items;}也就是grid.columns已经保存了所有的gridcolumn，不需要再去get了，呵呵结论：grid.columns[i].hide()/show()或者grid.columns[i].setVisible(false/true);再提供一个思路：//定义的时候在column里给一个itemId用于查找{ itemId: ’myActionColumn’, xtype: ’actioncolumn’, width: 50, items: [ ...]}//然后grid.down(’#myActionColumn’).hide();

　　就是COLOUR 颜色　　英汉解释英英解释　　现代英汉综合大辞典查词历史烤肉barbecuecolor　　[’kʌlə]　　[美]=[英] colour　　收起更多词典展开更多词典　　现代英汉词典color　　[’kʌlə(r)]　　n.　　色；色彩　　颜色　　The color of leaves is green in summer.　　夏天树叶的颜色是绿的。　　颜料；染料　　The artist painted in water-colors.　　这个画家用水彩作画。　　肤色；脸色　　As she became more annoyed Lucy’s colour changed.　　“罗茜越来越生气,脸色都变了。“　　特色；特质；风采；气质　　(pl)　　（国旗、舰旗、军旗等）旗帜　　(pl) （俱乐部、学校、球队等的） 制服，标志　　词性变化　　vt., vi.　　为…着色；染色　　Olivia is coloring the picture in her book.　　奥莉维亚在给书上的画涂颜色。　　变色　　The leaves start to colour in autumn.　　树叶在秋天开始变色。　　影响；使（人、物）带特殊的 效果或感受　　You must be aware that personal feelings may colour judgement.　　你该知道个人感情会影响你判断的正确性。　　脸红（英作： colour）　　习惯用语　　give color to 使有真实性　　The boy’s story has some colour of truth.　　这男孩的一番叙述听来似乎是真的。　　in its true colors 以本来面目　　off color 脸色不好；身体不适　　show one’s true colors 露出真面目；显出本性　　with flying colors 大为成功；出色地完成　　简明英汉词典color　　[’kʌlə]　　n.　　(=colour)颜色, 色彩, 脸色, 风格, 外貌　　vt.　　给...涂颜色, 改变...的颜色, 粉饰, 脸红, 歪曲　　vi.　　获得颜色, 变色　　柯林斯英语大词典查词历史烤肉barbecuecolor　　[ˈkʌlə]　　n　　vb　　the US spelling of colour　　柯林斯词典说明　　收起更多词典展开更多词典　　WordNetcolor　　colors colored coloring　　Noun　　1. a visual attribute of things that results from the light they emit or transmit or reflect; “a white color is made up of many different wavelengths of light“　　(synonym) colour, coloring, colouring　　(antonym) colorlessness, colourlessness, achromatism　　(hypernym) visual property　　(hyponym) heather mixture, heather　　(attribute) colored, coloured, colorful　　(derivation) colour, emblazon　　2. interest and variety and intensity; “the Puritan Period was lacking in color“　　(synonym) colour, vividness　　(hypernym) interest, interestingness　　(attribute) colorful, colourful　　3. the timbre of a musical sound; “the recording fails to capture the true color of the original music“　　(synonym) colour, coloration, colouration　　(hypernym) timbre, timber, quality, tone　　4. a race with skin pigmentation different from the white race (especially Blacks)　　(synonym) colour, people of color, people of colour　　(hypernym) race　　(member-meronym) person of color, person of colour　　5. an outward or token appearance or form that is deliberately misleading; “he hoped his claims would have a semblance of authenticity“; “he tried to give his falsehood the gloss of moral sanction“; “the situation soon took on a different color“　　(synonym) semblance, gloss, colour　　(hypernym) appearance, visual aspect　　(hyponym) color of law, colour of law　　6. any material used for its color; “she used a different color for the trim“　　(synonym) coloring material, colouring material, colour　　(hypernym) material, stuff　　(hyponym) paint　　7. (physics) the characteristic of quarks that determines their role in the strong interaction; each flavor of quarks comes in three colors　　(synonym) colour　　(hypernym) kind, sort, form, variety　　(classification) particle physics, high-energy physics, high energy physics　　8. the appearance of objects (or light sources) described in terms of a person’s perception of their hue and lightness (or brightness) and saturation　　(synonym) colour　　(hypernym) appearance, visual aspect　　Verb　　1. add color to; “The child colored the drawings“; “Fall colored the trees“; “colorize black and white film“　　(synonym) colorize, colorise, colourise, colourize, colour, color in, colour in　　(antonym) discolor　　(hypernym) change, alter, modify　　(hyponym) blackwash　　(derivation) coloration, colouration　　2. affect as in thought or feeling; “My personal feelings color my judgment in this case“; “The sadness tinged his life“　　(synonym) tinge, colour, distort　　(hypernym) affect, impact, bear upon, bear on, touch on, touch　　3. modify or bias; “His political ideas color his lectures“　　(synonym) colour　　(hypernym) influence, act upon, work　　4. decorate with colors; “color the walls with paint in warm tones“　　(synonym) colour, emblazon　　(hypernym) decorate, adorn, grace, ornament, embellish, beautify　　(hyponym) miniate　　(derivation) colorist　　5. gloss or excuse; “color a lie“　　(synonym) colour, gloss　　(hypernym) apologize, apologise, excuse, justify, rationalize, rationalise　　6. change color, often in an undesired manner; “The shirts discolored“　　(synonym) discolor, discolour, colour　　(hypernym) change　　(hyponym) blush, crimson, flush, redden　　(derivation) colour, coloring, colouring　　Adjective　　1. having or capable of producing colors; “color film“; “he rented a color television“; “marvelous color illustrations“　　(synonym) colour　　(antonym) black-and-white, black and white(p)　　(classification) photography, picture taking　　We agree to comply with the copyright notice and statements mentioned in WordNet license.　　反义词： decolour　　百科color　　更多解释　　该解释由词友GAVIN04121112提供，仅供参考。 免责声明　　网络词典 (beta)color 隐藏摘要　　颜色　　- valuesOf 获取布尔型物件的值(返回值为布尔型)　　color 颜色　　- getRGB 获取颜色值的RGB分量(返回值0xRRGGBB十六进制)　　　　色彩　　弱信号检测 Testing of Feeble Signals　　色彩 color　　色谱 color Spectrum　　　　染色效果　　Cold 冷的，单薄的　　color 染色效果　　COM comb 梳状（滤波）　　　　颜色　　coagent 合作施事　　color 颜色　　comment 评论