// 享元动作var FlyWeight = {    moveX : function ( x ) {        this.x = x;    },    moveY : function ( y ) {        this.y = y;    }};// 人物移动方法var Player = function ( x ,y ,c ) {    this.x = x;    this.y = y;    this.color = c;};Player.prototype = FlyWeight;Player.prototype.changeC = function ( c ) {      this.color = c;};// 精灵移动方法var Spirit = function ( x ,y ,r ) {    this.x = x;    this.y = y;    this.r = r;};Spirit.prototype = FlyWeight;Spirit.prototype.changeR = function ( r ) {    this.r = r;};// 创建人物var player = new Player( 5 , 6 , ‘red‘ );console.log ( player );player.moveX( 6 );player.moveY( 5 );// 创建精灵var spirit = new Spirit( 7 , 5 , 5 );console.log (spirit );spirit.moveX( 6 );spirit.moveY( 5 );spirit.changeR( 5 );