为什么不能输出结果？

源自：4-10 编程练习

为什么不能输出结果？

var infos=new Array(); for(var i=0;i<10;i++){ infos[i]=new Array(); for(var j=0;j<4;j++){ infos[i][j]=[

["小A","女",21,"大一"],["小B","男",23,"大三"],

["小C","男",24,"大四"],["小D","女",21,"大一"],

["小E","女",22,"大四"],["小F","男",21,"大一"],

["小G","女",22,"大二"],["小H","女",20,"大三"],

["小I","女",20,"大一"],["小J","男",20,"大三"]

]

for(infos[i][3]="大一")

{

for(infos[i][1]="女")

{

document.write(infos[i][0]+"<br/>")

}

}

提问者：dean317317 2017-02-11 23:46

个回答

朱锋

2017-03-11 17:21:06

赋值内容错误

0
helloworld2008

2017-02-17 18:17:29

你这for循环写的可不对啊，看下for的语法吧~

0
朝云慕云

2017-02-12 00:20:09

最好还是先赋值，然后再循环判断吧，这样关系不是太乱了吗。很难看清楚错那的，你像这样
var infos=[["小A","女",21,"大一"],["小B","男",23,"大三"],["小C","男",24,"大四"],["小D","女",21,"大一"],["小E","女",22,"大四"],["小F","男",21,"大一"],["小G","女",22,"大二"],["小H","女",20,"大三"],["小I","女",20,"大一"],["小J","男",20,"大三"]];

for(i=0;i<=4;i++){
if(infos[i][3]=="大一"&&infos[i][1]=="女"){
document.write(infos[i][0]);
}
}
试试呢

0