js cookie操作

1.设置cookie以及获取cookie

设置cookie

varusername=document.cookie.split(";")[0].split("=")[1];

//JS操作cookies方法!

//写cookies

functionsetCookie(name,value)

{

varDays = 30;

varexp = newDate();

exp.setTime(exp.getTime() + Days*24*60*60*1000);

document.cookie = name + "="+ escape (value) + ";expires="+ exp.toGMTString();

}

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获得cookie方法：

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functiongetCookie(name) { vararr,reg=newRegExp("(^| )"+name+"=([^;]*)(;|$)"); if(arr=document.cookie.match(reg)) returnunescape(arr[2]); else returnnull; }