json字符串与自定义class结构的转换

class TestPjo { 
name: string = ''; 
age: number = 0; 
} 
 
static test() { 
//1、object > json字符串 
let obj_1: object = new Object(); 
obj_1['name'] = 'aaa'; 
obj_1['age'] = 20; 
let pjo_1 = obj_1 as TestPjo; 
console.info('...test_2 pjo_1:' + JSON.stringify(pjo_1)); 
//2、json字符串 > object > class 
let str: string = '{"name": "aaa", "age": 20}'; 
let tmp: object = JSON.parse(str); 
let pjo_2 = tmp as TestPjo; 
console.info('...test_2 pjo_2:' + JSON.stringify(pjo_2)); 
//3、class > object > json字符串 
let pjo_3 = new TestPjo(); 
pjo_3.name = 'aaa'; 
pjo_3.age = 20; 
let obj_3: object = pjo_3; 
console.info('...test_2 obj_3:' + JSON.stringify(obj_3)); 
}