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求助为啥这段代码写出来没显示呢代码如下

<!DOCTYPE HTML>

<html >

<head>

<title>流程控制语句</title>

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(var i=0;i<infos.length;i++){

var stu=Infos[i];

if(stu[3]==="大一"&&stu[1]==="女"){

console.log(stu);

}

</script>

</head>

<body>

</body>

</html>

是骆驼啊

2016-12-26

源自：JavaScript进阶篇 4-10

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2 回答

qq_知秋落葉_0
2017-12-21

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 (var i = 0;i <= infos.length;i++){
    if(infos[i][3] == "大一" && infos[i][1] == "女"){
        document.write(infos[i][0]+"<br/>");
    }
}