有没有人用switch写一下

个回答

fruityu

2018-08-25 20:36:05

<!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(i=0;i<=9;i++){
     switch ("大一"){
         case infos[i][3]:
             switch("女"){
                 case infos[i][1]:
                     document.write(infos[i][0]+"<br>");
             }
     }
}
</script>
</head>
<body>
</body>
</html>

0
慕仔7224502

2018-08-06 21:18:41

感觉根本不需要第一次筛选，直接用第二次的筛选方法就可以了

0
321hc

2018-08-02 17:29:41

<!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"]];
var i,j;
//第一次筛选
for(i=0;i<10;i++){
switch(infos[i][3]){
case "大一":{
for(j=0;j<=3;j++){
document.write(infos[i][j]);
}
document.write("<br>");
}
}
}
//第二次筛选
for(i=0;i<10;i++){
switch(infos[i][3]){
case "大一":
switch(infos[i][1]){
case "女":{
document.write(infos[i][0]);
document.write("<br>");
}
}
}
}

</script>
</head>
<body>
</body>
</html>

1