let stu = {name:"张三",age:18} // 获取name值 let name = stu.name;
let stu = {name:"张三",age:18} // 获取name值 let name = stu["name"];
let stu = {name:"张三",age:18} for(let i in stu){// 获取参数let param = i;// 获取值let paramValue = stu[i]; }
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