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50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
2 years ago
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//获得Cookie解码后的值
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function GetCookieVal(offset) {
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var endstr = document.cookie.indexOf(";", offset);
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if (endstr == -1)
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endstr = document.cookie.length;
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return unescape(document.cookie.substring(offset, endstr));
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}
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//设定Cookie值
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function SetCookie(name, value) {
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var expdate = new Date();
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var argv = SetCookie.arguments;
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var argc = SetCookie.arguments.length;
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var expires = (argc > 2) ? argv[2] : null;
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var path = (argc > 3) ? argv[3] : null;
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var domain = (argc > 4) ? argv[4] : null;
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var secure = (argc > 5) ? argv[5] : false;
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if (expires != null)
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expdate.setTime(expdate.getTime() + (expires * 24 * 60 * 60 * 1000));
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document.cookie = name + "=" + escape(value)
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+ ((expires == null) ? "" : ("; expires=" + expdate.toGMTString()))
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+ ((path == null) ? "" : ("; path=" + path))
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+ ((domain == null) ? "" : ("; domain=" + domain))
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+ ((secure == true) ? "; secure" : "");
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}
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//删除Cookie
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function DelCookie(name) {
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var exp = new Date();
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exp.setTime(exp.getTime() - 1);
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var cval = GetCookie(name);
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document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
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}
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//获得Cookie的原始值
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function GetCookie(name) {
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var arg = name + "=";
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var alen = arg.length;
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var clen = document.cookie.length;
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var i = 0;
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while (i < clen) {
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var j = i + alen;
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if (document.cookie.substring(i, j) == arg)
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return GetCookieVal(j);
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i = document.cookie.indexOf(" ", i) + 1;
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if (i == 0)
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break;
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}
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return null;
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}
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