cookie常用备忘

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//获取cookie

function getCookie(c_name) {if(document.cookie.length > 0) {c_start = document.cookie.indexOf(c_name + "=")if(c_start != -1) {c_start = c_start + c_name.length + 1c_end = document.cookie.indexOf(";", c_start)if(c_end == -1) c_end = document.cookie.lengthreturn unescape(document.cookie.substring(c_start, c_end))}}return ""}//放入cookiefunction setCookie(c_name, value, expiredays) {var exdate = new Date()exdate.setDate(exdate.getDate() + expiredays)document.cookie = c_name + "=" + escape(value) +((expiredays == null) ? "" : ";expires=" + exdate.toGMTString())}//获取url参数function getUrlParams(c_name) {if(!location.search) return "";var pstr = location.search.substr(1, location.search.length - 1);if(pstr.length > 0) {c_start = pstr.indexOf(c_name + "=")if(c_start != -1) {c_start = c_start + c_name.length + 1c_end = pstr.indexOf(";", c_start)if(c_end == -1) c_end = pstr.lengthreturn unescape(pstr.substring(c_start, c_end))}}return ""}

//删除cookie

function DelCookie(name) {var exp = new Date();exp.setTime(exp.getTime() - 1);document.cookie = name + "=; expires=" + exp.toGMTString();}

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