<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <script type="text/javascript"> function User(name,age){ this.name = name; this.age = age; } var u1 = new User("张三",18); var u2 = new User("李四",20); document.write("默认输入格式："+u1.name+" "+u1.age+"<br>"); var str = JSON.stringify(u1); document.write("json格式："+str+"<br>"); var arr1 = new Array(); arr1[0] = u1; document.write("json格式-数组："+JSON.stringify(arr1)+"<br>"); /* json串转对象 */ /* 此处要用单引号 */ var str = ‘{"name":"张三","age":18}‘; var u3 = JSON.parse(str); document.write("json格式转对象："+u3.name+"<br>"); var str1 = ‘[{"name":"张三","age":18},{"name":"lisi","age":15},{"name":"wangwu","age":19}]‘; var userArray = JSON.parse(str1); document.write("userArray长度："+userArray.length+"<br>"); </script> </head> <body> </body> </html>
原文：https://www.cnblogs.com/qilin20/p/12613072.html