此代码是一个异步操作的ajax，异步刷新页面，不会整体刷新页面，可以用于页面的登录验证。- This code This code is an asynchronous operation ajax, asynchronous refresh the page without refreshing the whole page, the page can be used for login authentication. Is used to achieve the c language j

ASP.NET电子教案和源程序代码:登录，注册，用户信息等-ASP.NET electronic lesson plans and source code: login, registration, user information, etc.