标题：两个Javascript的Cookie操作函数
出处：Felix021
时间：Fri, 26 Sep 2008 21:49:09 +0000
作者：felix021
地址：https://www.felix021.com/blog/read.php?1187

内容：
用起来挺方便的。

function setCookie(key, value, day) {
    day = parseInt(day);
    if(!isNaN(day)){
        var expireDate = new Date();
        expireDate.setTime(expireDate.getTime() + (day*24*3600000));
        document.cookie = key + "=" + encodeURIComponent(value) + ";expires=" + expireDate.toGMTString();
    }
    else{
        document.cookie = key + "=" + encodeURIComponent(value);
    }
}

function getCookie(str){
    var reg = new RegExp("(^| )"+str+"=([^;]*)(;|$)","gi");
    var ck = reg.exec(document.cookie);
    try{
        if(ck[2] == null || typeof(ck[2]) == "undefine") return null;
    }
    catch(e){
        return null;
    }
    return decodeURIComponent(ck[2]);
}



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