JavaScript操作Cookie 插件

JavaScript操作Cookie 插件，标注已经很清楚了，请看具体代码：

//Cookie类 function Cookie(){ Cookie.prototype=new Object();//继承自Object this.constructor=Cookie; //重写toString函数，生成为document.cookie形式的字符串 Cookie.prototype.toString=function(){ var data=[];//存放cookie子键 var _cookie=[];//存放cookie键值对 for(var prop in this){ switch(true){ case prop=="name": _cookie[0]=prop; continue; case prop=="expires": _cookie[1]=prop+"="+this[prop]; continue; case prop=="path": _cookie[2]=prop+"="+this[prop]; continue; case prop=="secure": _cookie[3]=prop+"="+this[prop]; continue; case prop=="domain": _cookie[4]=prop+"="+this[prop]; continue; } data[data.length]=prop+":"+escape(this[prop]); } _cookie[0]+="="+data.join("&"); return _cookie.join(";"); }; return this;//返回cookie对象 } //将字符串格式化为cookie, 静态函数 Cookie.format=function(str){ var cookie=new Cookie(); var start=str.indexOf("="); cookie.name=str.substring(0,start); var value=str.substring(start+1); value=value.split('&'); for ( var v in value ){ v=v.split(':'); this[v[0]]=unescape(v[1]); } return cookie; }; //获取当前所有cookie, 静态对象 Cookie.cookies=(function(){ var cookie=document.cookie; var obj; cookie=cookie.split(';'); for (var c in cookie){ c=Cookie.format(c); obj[c.name]=c; } return obj; })(); //添加cookie, 静态函数 Cookie.Add=function(cookie){ if(cookie instanceof Cookie){ document.cookie=cookie.toString(); } //else console.log("参数错误"); } //删除cookie, 静态函数 Cookie.Remove=function(cookie){ if(cookie instanceof Cookie){ var time=new Data(); time.setFullYear(time.getFullYear()-10); cookie.expires=time.toGMTString(); document.cookie=cookie.toString(); } }