原型链 //父类 function people(name,age,color){ this.name=name this.age=age this.color } people.prototype.move=function(){ console.log(this.name+"正在工作") } //子类 function student(name,age,color){ } student.prototype=new people("王一",18,"黑色"); student.prototype.mystudents=function(){ console.log("学习") } var s1=new student() s1.move() s1.mystudents()