function inheritPrototype(subType,superType){    var prototype = Object(superType.prototype); // 创建对象    prototype.constructor = subType; // 增强对象    subType.prototype = prototype; // 指定对象}function SuperType(name){    this.name = name;    this.colors = ['red'];}SuperType.prototype.sayName = function(){    console.log(this.name);}function SubType(name,age){   // 继承属性    SuperType.call(this,name);    this.age = age;}// 继承方法。inheritPrototype(SubType,SuperType);SubType.prototype.sayAge = function(){    console.log(this.age);}