面向对象继承实例(a如何继承b)
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>面向对象继承实例</title> <script type="text/javascript"> 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(); } </script> </head> <body> <h1>面向对象继承实例</h1> <p>经常看到面试题有关继承问题 a如何继承b 决定写一下,其实继承就是继承父级的属性和方法</p> </body> </html>