JS的get和set使用示例

var test = { 
_Name : null, 
_Age : 0, 

//_Name的读写 
set name(name) {this._Name = name;}, 
get name() {return this._Name;}, 
//_Age的读写 
set age(age) {this._Age = age;}, 
get age() {return this._Age;} 
} 

alert(test.name + " " + test.age);//bull 0 
test.name = 'lucy'; 
test.age = 20; 
alert(test.name + " " + test.age);//lucy 20