//取指定数据库列表 if ( txtDbName.Text =="" || txtUserName.Text == "" || txtPwd.Text == "") { MessageBox.Show("数据库，用户，密码不能为空！！", "操作错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } else { ArrayList lst = baks.GetDbList(txtDbName.Text,txtUserName.Tex