function ClearCookie() {
var expires = new Date();
expires.setTime(expires.getTime() - 1000); //當前時間減去一秒,相當于立即過期(可以增減)
document.cookie = "appCode='222''';path=/;expires=" + expires.toGMTString() + ""; //expires是對應過期時間的設置,不設這個值,cookie默認在關閉瀏覽器時失效
document.cookie = "roleID='333''';path=/;expires=" + expires.toGMTString() + "";
document.cookie = "parentMenuID='000''';path=/;expires=" + expires.toGMTString() + "";
document.cookie = "currentMenuName='哈哈''';path=/;expires=" + expires.toGMTString() + "";
}