MYSQL的操作类（已封装）

    function AddNew($TableName="")  //标志开始添加数据
    {
      $this-＞Initialize();
      if(!empty($TableName))
        $this-＞sTName=$TableName;
      if($this-＞NewEdit＞0)
      {
        $this-＞nErr=1;
        $this-＞sErr="AddNew:你正在对数据库进行添加或更新操作！";
        return;
      }
      if(empty($this-＞sTName))
      {
        $this-＞nErr=1;
        $this-＞sErr="AddNew:想要添加的数据库表为空，可以在构造时指定，也可在AddNew()时指定！";
        return;
      }
      unset($this-＞aNew);
      $this-＞aNew=array();
      $this-＞NewEdit=1;
      $strSQL="select * from ".$this-＞sTName;
          $this-＞sSQL=$strSQL;
      if(!$this-＞nResult=mysql_query($strSQL))
      {
        $this-＞nErr=1;
        $this-＞sErr="AddNew:SQL语句：".strSQL."＜br＞＜br＞MySql错误：".mysql_error();
        return;
      }
      $this-＞nCols=mysql_num_fields($this-＞nResult);
      unset($this-＞aFName);
      $this-＞aFName=array();
      for($i=0;$i＜$this-＞nCols;$i++)
         $this-＞aFName[$i]=strtolower(mysql_field_name($this-＞nResult,$i));
    }

    function Edit($Condition="",$TableName="")  //对指定数据库表进行编辑
    {
                  $this-＞Initialize();
                  if(!empty($TableName))
                          $this-＞sTName=$TableName;
                  $this-＞sEditCon=$Condition;
                  if(empty($this-＞sTName))
                  {
                          $this-＞nErr=1;
                          $this-＞sErr="Edit:在编辑前请先指定数据库表！";
                          return;
                  }
                  unset($this-＞aNew);
                  $this-＞aNew=array();
                  $this-＞NewEdit=2;
                  $strSQL="select * from ".$this-＞sTName;
                  $this-＞sSQL=$strSQL;
                  if(!$this-＞nResult=mysql_query($strSQL))
          {
             $this-＞nErr=1;
             $this-＞sErr="Edit:SQL语句：".strSQL."＜br＞＜br＞MySql错误：".mysql_error();
             return;
          }
          $this-＞nCols=mysql_num_fields($this-＞nResult);
          unset($this-＞aFName);
          $this-＞aFName=array();
          for($i=0;$i＜$this-＞nCols;$i++)
             $this-＞aFName[$i]=strtolower(mysql_field_name($this-＞nResult,$i));
    }