详解JavaScript基于面向对象之继承实例

核心实现代码

window.onload = function(){ 
 function parent(age,name){ 
  this.age = age; 
  this.name = name; 
 } 
 parent.prototype.show = function(){ 
  alert('父级方法'); 
 } 
 function child(age,name,job){ 
  parent.apply(this,arguments); 
  this.job = job; 
 } 
 (function(){ 
  for(var i in parent.prototype){ 
  child.prototype[i]=parent.prototype[i] 
 } 
 })(); 
 var b = new parent(14,'侠客行'); 
 var a = new child(15,'狼侠','侠客'); 
 a.show(); 
}