private void ChangePwd()
{
BLL.UserBLL bll = new BLL.UserBLL();
string OldPwd = ReStr("OldPwd");
string NewPwd1 = ReStr("NewPwd1");
string NewPwd2 = ReStr("NewPwd2");
string UserId = bll.CurrentUserId();
if (!bll.CheckUserIdAndPwd(UserId, OldPwd))
{
throw new Exception("原始密码与当前用户不符！");
}
if (NewPwd1.Trim() != NewPwd2.Trim())
{
throw new Exception("输入了两次不同的新密码！");
}
bll.ChangePwd(UserId, NewPwd1);
bll.LoginIn(UserId, NewPwd1);
ReTrue();
}