~~~ function readCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for (var i = 0; i < ca.length; i++) { var c = ca[i]; while (c.charAt(0) == ' ') c = c.substring(1, c.length); if (c.indexOf(nameEQ) == 0) { return decodeURIComponent(c.substring(nameEQ.length, c.length)) } } return null } ~~~ ~~~ /** * 获取cookie值 unescape()不推荐使用 用 decodeURI() * */ function getCookie(name) { var arr = document.cookie .match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); if (arr != null) return unescape(arr[2]); return null; } ~~~