1、php中（一定要这样写）
$json = '{"name":"展示","age":123}'; print_r(json_decode($json,true));die;
2、js中
var str = {name:“zs”,age:12}
//或
var str = {name:zs‘,age:12}
或
var str = {“name“:“zs“,“age“:12}

console.log(str.name)