json数据格式常见操作示例

<script>//var json3={name:"longzhoufeng",age:123}//第一种方式var json3={"name":"longzhoufeng","age":123}//推荐这种方式，加引号，安全性高一点，转换格式好一些for( var attr in json3){  //alert(attr)//name,age  console.log(json3[attr])//longzhoufeng,123}</script>

<script>var arr=[{"name":"longzhoufeng","age":123},{"name":"minigui","age":25}]var parn=arr[0].name+"今年多少岁"+arr[1].ageconsole.log(parn)</script>

<script>//对象里包数组var json4={  "url":["img/1.jpg","img/2.jpg","img/3.jpg","img/4.jpg"],  "text":["aaaa","bbbb","cccc","dddd"]}for(var att in json4){  console.log(json4[att])  for(var i=0;i<json4[att].length;i++){    console.log(json4[att][i])  }}</script>

<script>var json5=[{"姓名":"longzhoufeng","年龄":123},{"姓名":"minigui","年龄":25}]for(var i=0;i<json5.length;i++){  for(var att in json5[i]){    //alert(att)    console.log(json5[i][att])  }}</script>