private void btnAddUser_Click(object sender, EventArgs e)
        {
            if (current_user.current_role.System_manage != 1)
            {
                Msbox.Show("亲~ 没权限哦--");
                (sender as Control).Enabled = false;//关闭该控件
                return;
            }
            frmAddUser frm_add_user = new frmAddUser();

            frm_add_user.Show();
        }
 //系统设置
 private void LoadSystemSetting()
 {
     if (current_user.current_role.System_manage != 1)
     {
         Msbox.Show("亲~ 没权限哦--");
     }
     else
     {
         btnAddUser.Visible = true;
         btnAddRole.Visible = true;
         btnAeroWallpaperChanger.Visible = true;
         btnAdvanced_operations.Visible  = true;
     }
 }