qq_一米陽光
2016-05-02 15:10
<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流程控制语句</title>
<script type="text/javascript">
//第一步把之前的数据写成一个数组的形式,定义变量为 infos
var infos=new Array();
infos=[
["A","女",21,"大一"],
["B","男",23,"大三"],
["C","男",24,"大四"],
["D","女",21,"大一"],
["E","女",22,"大四"],
["F","男",21,"大一"],
["G","女",22,"大二"],
["H","女",20,"大三"],
["I","女",20,"大一"],
["J","男",20,"大三"]
];
//第一次筛选,找出都是大一的信息
for(var i=0;i<infos.length;i++){
if(infos[i][3]=="大一"&&infos[i][1]=="女"){
document.write("大一女生的名字:"+inofs[i][0]);
}
}
//第二次筛选,找出都是女生的信息
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流程控制语句</title>
<script type="text/javascript">
//第一步把之前的数据写成一个数组的形式,定义变量为 infos
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']
]
//第一次筛选,找出都是大一的信息
for( var i=0;i<infos.length;i++){
if(infos[i][3]=="大一"){
document.write(infos[i]+"<br>")
}
}
//第二次筛选,找出都是女生的信息
var demo=new Array();
demo=infos;
for(var i=0;i<demo.length;i++){
if(demo[i][1]=='女'&&infos[i][3]=="大一")
{ document.write(demo[i][0]+"<br/>");}
}
</script>
</head>
<body>
</body>
</html>
调用的数组是inofs[],而你定义的数组是infos[]
好吧 输出时数组名写错了,,,,,
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