JavaScript对象的注意事项

varname="蒋庆";
varobj={};//对象varperson={
// name:"马松昊",name:name,
age:22,
sex:"女",
age:18,
boyfriend:{
name:"沈春阳",
age:23,
boyfriend:{
name:"王选东"            }
        },
18:{name:"李四"},
// obj:"对象",hobby:function(){
console.log("我爱猛男");
        }
    }
console.log(person.boyfriend.boyfriend.name);

console.log(person.age);//18  打印18 而不是22

// 即使在创建对象时，键用的不是字符串也会自动转换为字符串的数据类型console.log(person["sex"]);
console.log(person['18']);