document cookiejavascript如何读cookie

javascript如何读cookie

//读取Cookie的函数 function readCookie(name) { var cookieValue = ""; var search = name + "="; if(document.cookie.length > 0) { offset = document.cookie.indexOf(search); if (offset != -1) { offset += search.length; end = document.cookie.indexOf(";", offset); if (end == -1) end = document.cookie.length; cookieValue = unescape(document.cookie.substring(offset, end)) } } return cookieValue; } //写入Cookie的函数 function writeCookie(name, value, hours) { var expire = ""; if(hours != null) { expire = new Date((new Date()).getTime() + hours * 3600000); expire = "; expires=" + expire.toGMTString(); } document.cookie = name + "=" + escape(value) + expire; } } } return cookieValue; }