用var infos = new Array();的方法为什么不行呢？

源自：4-10 编程练习

用var infos = new Array();的方法为什么不行呢？

var infos =new Array(('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<infos.length;i++){
    if(infos[i][3] == '大一' && infos[i][1] == '女'){

             document.write('姓名：'+infos[i][0]);

    }

}
这样创建数组为什么不行？程序错误显示不了，求大神指导

提问者：孟哲 2016-08-15 09:15

个回答

tlojy: 2016-08-29 13:17:33

已采纳

var infos=new Array(
["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"]);

玉墨

2016-08-28 20:38:04

这里有另外一种方法：var infos=new Array();
for(var i=0;i<8;i++)
{ infos[i]=new Array()
for(var j=0;j<4;j++)
{infos[i][j]="...";
}}这样同样可以赋值

0

tlojy: 2016-08-22 16:43:58

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"]];

YAAnnnnnnnnn

2016-08-15 09:21:38

Array后面跟着个大括号再到小括号。Array{(),()};

1