如何用switch做？

个回答

李晓健: 2015-12-16 16:39:16

已采纳

var infos = [
    ['小A','女',21,'大一'],
    ['小B','男',23,'大三'],
    ['小C','男',24,'大四'],
    ['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(var i = 0; i < infos.length; i++) {
    switch(infos[i][3]){
        case '大二':
            break;
        case '大三':
            break;
        case '大四':
            break;
        default:
            switch(infos[i][1]){
                case "女":
                    console.log(infos[i][0] + "<br />");
                    break;
            }
    }
}

可以这样试一下

阿蒋

2016-03-15 15:47:21

<!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">
var infos = [
['小A','女',21,'大一'],
['小B','男',23,'大三'],
['小C','男',24,'大四'],
['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(var i=0;i<infos.length;i++){
if(infos[i][3]=="大一"){
switch(infos[i][1]){
case '女':
document.write(infos[i][0]+"<br />");
}
}
}
</script>
</head>
<body>
</body>
</html>

0
qq_漂流帝国_0

2016-01-09 11:43:46

页面有毛病

0
qq_落日向上游_0

2015-12-16 16:44:24

没反应

0