id1="select manage_pwd,manage_name,manage_position from manager where manage_id = '"+id+"';";
最后的id格式为什么会有双引号加分号又有前后加号?
id1="select manage_pwd,manage_name,manage_position from manager where manage_id = '"+id+"';";
最后的id格式为什么会有双引号加分号又有前后加号?