通過Proxy已經(jīng)攔截屬性檢索，為何還會判斷屬性返回true

let obj = {

            time: '2017-7-20',
            name: 'set',
            _r: 123
        };

let daili = new Proxy(obj,{

                has(target,key){
                if (key==='name'){
                    return target[key];
                }else{
                    return false;
                }
            }
        });    

console.log('name' in obj,'time' in obj); //true true 后面的應(yīng)該是false啊