Javascript中的json操作

<!doctype html>
<html>
    <head>
        <title>extjs-json</title>
        <script type="text/javascript">
    window.onload = function loadPage(){
            var obj={
                1:"first",
                "2":"second"
            };
            console.log(obj[1]);//打印

            obj.sex ="man";//添加
            delete obj.sex;//删除
            for(var c in obj){//遍历
                console.log(c+":",obj[c]);
            }
            
        } 
        </script>
    </head>
    <body>
    </body>
</html>
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原文地址：https://www.cnblogs.com/tingbogiu/p/5810864.html