JS实现子类调用父类的同名函数函数

图像的实现

代码实现

function parent() {
  this.initialize = function() {
    this.x = 1;
    this.y = 1;
  },
  this.initialize()
}function son() {
  this.initialize = function() {
    this.hehe = "hehe";
    this.haha = "haha";
    son.prototype.initialize.apply( this, arguments )
  },
  this.Demo = function(x,y) {
    console.log("son::Demo",  x,  y);
  },
  this.initialize()
}

function Grandson() {
  this.initialize = function() {
    this.kk = "kk";
    son.prototype.initialize.apply( this, arguments )
  },
  this.Demo = function(x,y) {
    Grandson.prototype.Demo.apply( this, arguments ),
    console.log("Grandson::Demo",  x,  y);
  },
  this.initialize()
}

son.prototype = new parent;
Grandson.prototype = new son;

var parent1 = new parent();
var son1 = new son();
var Grandson1 = new Grandson();
Grandson1.Demo(222,333);//  这句话的输出说明了Grandson的成员函数Demo执行时，在内部就会调用父类的son::Demo

结果实现