<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>json</title>
<script src="js/jquery-3.2.1.min.js"></script>
<script>
/*
//1、第一种方式
var person={"name":"jack","age":13,"gender":true};
// alert(person["name"]);
//遍历person
for(var ps in person){
alert(ps+":"+person[ps]);
}
*/
/* //2、第二种方式
var persons={"persons":[
{"name":"jack","age":13,"gender":true},
{"name":"jack1","age":132,"gender":true},
{"name":"jack2","age":131,"gender":true}
]
};
for(var i=0;i<persons.persons.length;i++){
var person2 = persons.persons[i];
for(var pp in person2){
alert(pp+":"+person2[pp]);
}
}*/
//var ps=persons.persons[2].name;
//alert(ps);
//3、第三种方式
var pers=[{"name":"jack0","age":13,"gender":true},
{"name":"jack00","age":13,"gender":true},
{"name":"jack000","age":13,"gender":true}
];
// var name = pers[1].name;
//alert(name);
for(var i=0;i<pers.length;i++){
var per = pers[i];
for(var pps in per){
alert(pps+":"+per[pps]);
}
}
</script>
</head>
<body>
ni hao!
</body>
</html>
原文：https://www.cnblogs.com/fpflog/p/12089687.html