javascript 中类的定义

//声明方法一
function person(name,age){
    this.name=name;
    this.age=age;
    };
person.prototype.show=function(){
       alert("您输入的姓名是："+this.name+"，您的年龄是:"+this.age);
    
    };
//声明方法二
    function person(name,age)
    {
        this.name=name;
        this.age=age;
        this.show=function(){
               alert("您输入的姓名是："+this.name+"，您的年龄是:"+this.age);
            };
        
        }

//调用   
        var p=new person("wangk","19");
        p.show();

 

String.prototype.format = function () {
var args = arguments;
return this.replace(/\{(\d+)\}/g,
function (m, i) { return args[i]; }
);
}
String.prototype.endsWith = function (suffix) {
return this.indexOf(suffix, this.length - suffix.length) !== -1;
};
String.prototype.startsWith = function (suffix) {
return this.indexOf(suffix) == 0;
};
String.prototype.trim = function () {

return !this
? this
: this.replace(/^( |\s)*|( |\s)*$/gi, '');
};
String.prototype.filter = function () {
return !this
? this
: this.replace(/[^0-9a-zA-Z\u4e00-\u9fa5\s]/ig, ""); 
}

 

var Order = function (_oid, _state, settingOptions) {
var _self = this;

this.Init = function () {

}
var oid = _oid;
var state = _state;
this.Price = 0;

this.ShowOptions = function () {

// alert(_self.settings.isOnline);
};

this.Show = function () {
alert("Show:" + oid);
};


this.Alert = function () {
return priveatMethod();
};


var priveatMethod = function () {
alert("Price:" + _self.Price);
};

};

 

var ord = new Order("1", "rhythmk", {
isOnline:"_isonline"
});
ord.Init();
ord.Show();
ord.Alert();
ord.ShowOptions();

 // 类定义

     // 静态类
    var adm = {
        xOffset: 10,
        yOffset: 20,
        
        GetData: function() {
            alert(this.xOffset + "," + this.yOffset);
        },
        
        ModifyData: function(x, y) {
            this.xOffset = x;
             this.yOffset = y;
        }
    };

    adm.GetData();
    adm.ModifyData(100, 200);
    adm.GetData();
    adm.xOffset = 10000;
    adm.GetData();

   alert("----JS 类---")

   var show = function() {
        // 私有对象
        _seft = this;
        // 私有对象
        var xOff = 10;
        var yOff = 20;
        this.PublicData = 0;
        
        // 公有方法
        this.Alert = function() {
            alert(xOff + "," + yOff + "," + _seft.PublicData);
        };
        
        // 私有方法
        var PriMethod = function() {
            alert("私有方法");
        };
        // 公有方法
        this.CallPMethod = function() {
            return PriMethod();
        };

    }


    var s = new show();
    s.Alert();
    s.CallPMethod();
    s.PublicData = 66666;
    s.Alert();
   

 jquery 插件开发：

	// 定义一个JS 插件
	;(function($){
	   $.fn.man=function(options)
	   {
	         var defaults={
			    name:"rhythmk",
				age:20,
				url:"rhythmk.cnblogs.com"
			};
			 
			options= $.extend(defaults,options);
			this.show=function(){
			   alert("name:"+options.name+",age:"+options.age+",email:"+options.url);
			};
		};
	})(jQuery);
	
	
	//插件调用
	var data={name:"wkaaaaaaa"};
	
	var  man=$.fn.man;
	
	//直接使用插件
	var m=new $.fn.man(data);
	m.show();
	
	//插件别名
	var  man=$.fn.man;
	var m1=new man();
	m1.show();