mysql操作类(6)

                $this->show_error("sql语句错误：","暂时为空，没有任何内容"); 
            } 
        }else{ 
            return mysql_num_rows($this->result); 
        } 
     } 
     //根据insert update delete执行的结果驱动影响行数  
     public function db_affected_rows(){ 
        return mysql_affected_rows(); 
     } 
     //输出显示sql语句  
     public  function show_error($message="",$sql=""){ 
        if(!$sql){ 
            echo "<font color='red'>" . $message . "</font>"; 
            echo "<br>"; 
        }else{ 
             echo "<fieldset>"; 
            echo "<legend>错误信息提示:</legend><br />"; 
            echo "<div style='font-size:14px; clear:both; font-family:Verdana, Arial, Helvetica, sans-serif;'>"; 
           echo "<div style='height:20px; background:#000000; border:1px #000000 solid'>"; 
            echo "<font color='white'>错误号：12142</font>"; 
            echo "</div><br />"; 
            echo "错误原因：" . mysql_error() . "<br /><br />"; 
           echo "<div style='height:20px; background:#FF0000; border:1px #FF0000 solid'>"; 
            echo "<font color='white'>" . $message . "</font>"; 
            echo "</div>"; 
            echo "<font color='red'><pre>" . $sql . "</pre></font>";