javascript面向对象编程代码

var orchard = function (){ //基类型构造函数代理 静态方法都在代理函数上 
this.constructor && this.constructor.apply(this,arguments); 
}; 
orchard.extend = function() { 
var parentObj = this; 
var parameters = parentObj.parameters ? 
parentObj.parameters.concat(_.toArray(arguments)) : _.toArray(arguments); 
var thisObj = function(){ //继承类型构造函数代理 
var newparameters = parameters.concat(_.toArray(arguments)); 
this.constructor && this.constructor.apply(this,newparameters); 
}; 
_.extend(thisObj,parentObj); 
_.extend(thisObj.prototype,parentObj.prototype); 
thisObj.parameters = parameters; 
thisObj.base = thisObj.prototype.base = parentObj; //基类型的代理函数 
thisObj.supper = thisObj.prototype.supper = parentObj.prototype; //基类型的构造函数 类成员都在构造函数上 
return thisObj; 
}; 
orchard.define = function(object){ 
if(typeof object === "undefined") object = {constructor: function(){}}; 
this.prototype = object.constructor; 
this.prototype.constructor = this.prototype; 
for(var name in this.base) 
if(typeof this[name] === "undefined") 
this[name] = this.base[name]; 
for(var name in this.supper) 
if(typeof this.prototype[name] === "undefined") 
this.prototype[name] = this.supper[name]; 
for(var i = 0; i < arguments.length; i++) 
_.extend(this.prototype,arguments[i]); 
this.prototype.base = this.base; 
this.prototype.supper = this.supper; 
this.supper = undefined; 
delete this.supper; 
return this; 
}; 
orchard.definenew = function(){ 
var newclass = this.extend(); 
return define.apply(newclass,arguments); 
}; 

调用：

var Person = orchard.definenew({ 
constructor: function(name){ 
this.name = name; 
}, 
say: function(){ return "Hello, i'm " + name;} 
}); 
var aBen = Person.extend("aBen"); 
aBen.define({ 
constructor: function(){ 
this.supper.apply(this,arguments); 
} 
}); 
var aben = new aBen(); 
alert(aben.say()); 

思路就是这样的，代码没验证过。分享的思路，大家自己看着办。哈哈~~