foio

(function(){
	//initializing用于控制类的初始化，非常巧妙，请留意下文中使用技巧
	//fnTest返回一个正则比表达式，用于检测函数中是否含有_super，这样就可以按需重写，提高效率。当然浏览器如果不支持的话就返回一个通用正则表达式
	var initializing = false,fnTest = /xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/;
	//所有类的基类Class,这里的this一般是window对象
	this.Class = function(){};
	//对基类添加extend方法，用于从基类继承
	Class.extend = function(prop){
		//保存当前类的原型
		var _super = this.prototype;

foio

<?php

/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,