代码: 复制代码 代码如下: jQuery.cookie = function(name, value, options) { if (typeof value != "undefined") { // name and value given, set cookie options = options || {}; if (value === null) { value = ""; options = $.extend({}, options); // clone object since it"s unexpected behavior if the expired property were changed options.expires = -1; } var expires = ""; if (options.expires && (typeof options.expires == "number" || options.expires.toUTCString)) { var date; if (typeof options.expires == "number") { date = new Date(); date.setTime(date.getTime() (options.expires * 24 * 60 * 60 * 1000)); } else { date = options.expires; } expires = "; expires=" date.toUTCString(); // use expires attribute, max-age is not supported by IE } // NOTE Needed to parenthesize options.path and options.domain // in the following expressions, otherwise they evaluate to undefined // in the packed version for some reason... var path = options.path ? "; path=" (options.path) : ""; var domain = options.domain ? "; domain=" (options.domain) : ""; var secure = options.secure ? "; secure" : ""; document.cookie = [name, "=", encodeURIComponent(value), expires, path, domain, secure].join(""); } else { // only name given, get cookie var cookieValue = null; if (document.cookie && document.cookie != "") { var cookies = document.cookie.split(";"); for (var i = 0; i < cookies.length; i ) { var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want? if (cookie.substring(0, name.length 1) == (name "=")) { cookieValue = decodeURIComponent(cookie.substring(name.length 1)); break; } } } return cookieValue; } };