var Person = function(name, gender, age) {  this.Name = name;  this.Gender = gender;  this.Age = age;  this.SetName = function(sname) {    this.Name = sname;  }  this.GetName = function() {    return this.Name;  }  this.SetGender = function(sgender) {    this.Gender = sgender;  }  this.GetGender = function() {    return this.Gender;  }};/*靜態公用方法*/Person.Play = function() {  alert("這是一個靜態方法");}/*Javascript規定，每一個構造函數都有一個prototype屬性，指向另一個對象。這個對象的所有屬性和方法，都會被構造函數的實例繼承。這意味著，我們可以把那些不變的屬性和方法，直接定義在prototype對象上。*/Person.prototype.Address = "中華人民共和國";Person.prototype.SayHello = function() {  alert(Person.prototype.Address);}