json字符串 转为 对象
var str = '{"id":1,"name":"Russel Westbrook","age":28}';
var strToObj = JSON.parse(str);
对象 转为 json字符串
var obj = {
id: 1,
name: 'Russel Westbrook',
age: 28
};
var objToStr = JSON.stringify(obj);
var str = '{"id":1,"name":"Russel Westbrook","age":28}';
var strToObj = JSON.parse(str);
var obj = {
id: 1,
name: 'Russel Westbrook',
age: 28
};
var objToStr = JSON.stringify(obj);

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