let obj = {age:18}
obj[name] = 16 // ''
obj['name'] = 16 //添加属性
obj.age = 19; //修改属性
console.log(obj)//{age: 19, "": 16, name: 16}
//变量字符串化
for (var prop in obj) {
console.log(prop); // prop不再是变量 转化为obj["prop"]
}
;
obj.name ==> obj["name"]
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转载自blog.csdn.net/Mine____/article/details/103912864
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