JavaScript 清除所有 Cookie 的方法

function deleteCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval = getCookie(name); if (cval != null){ document.cookie = name + '=' + cval + ';path=/;expires=' + exp.toGMTString(); } }

function clearCookie() { var cookies = document.cookie.split(';');

for (var i = 0; i < cookies.length; i++) {
    var cookie = cookies[i];
    var eqPos = cookie.indexOf('=');
    var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
    document.cookie = name + '=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/';
}

}