Java/Others/JS_day05/JSON.html at JavaScript · ZichengQu/Java · GitHub

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<!DOCTYPE html>
<html>
<head>
<metacharset="UTF-8">
<title></title>
<script>
varjson='{"name":"Mary","age":18,"gender":"woman"}';//js对象属性可以加双引号，也可以不加。JSON一定要加
vararr1='[1,2,3,"hello",true]';
varobj='{"arr":[1,2,3]}';//JSON对象放数组
vararr2='[{"name":"Mary",age:18,gender:"woman"}]';//JSON数组放对象
//JSON --> JS对象
varperson=JSON.parse(json);
console.log(person.name);//Mary
vararr=JSON.parse(arr1);//JSON --> JS数组
console.log(arr[3]);//hello
//JS对象 --> JSON
varjsObj={name:"Mary",age:18,gender:"woman"};
varjsonStr=JSON.stringify(jsObj);
console.log(typeof(jsonStr));//string
console.log(jsonStr);//"{"name":"Mary","age":18,"gender":"woman"}"

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