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  • javascript 操作cookie

    function GetCookieVal(offset)
    //获得Cookie解码后的值
    {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
    endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
    }
    function SetCookie(name, value)
    //设定Cookie值
    {
    var expdate = new Date();
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;
    var path = (argc > 3) ? argv[3] : null;
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));
    document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
    +((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
    +((secure == true) ? "; secure" : "");
    }
    function DelCookie(name)
    //删除Cookie
    {
    var exp = new Date();
    exp.setTime (exp.getTime() - 1);
    var cval = GetCookie (name);
    document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
    }
    function GetCookie(name)
    //获得Cookie的原始值
    {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen)
    {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
    return GetCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break;
    }
    return null;
    }
    
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  • 原文地址:https://www.cnblogs.com/zxforben/p/1777996.html
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