function Initialize()
    {
      $this->nErr=0;
      $this->NewEdit=0;
      $this->nResult=-1;
      $this->nCols=0;
      $this->nRows=0;
      $this->nOffset=0;
      $this->EOF=true;
      $this->sName="";
      $this->sValue="#@!";
      $this->sEdit="#@!";
      unset($this->aFName);
      unset($this->aNew);
    }
    function MySQLDB($TableName="",$database="slt")  //构造函数
    {
      $this->Initialize();
      $this->sTName=$TableName;
      $this->linkid=MySQL_connect($host,$user,$password);
      if(!$this->linkid)
      {
        $this->nErr=1;
        $this->sErr="MySqlDB:数据库连接出错，请启动服务!";
        return;
      }
      $this->dbid=sql/Index.html'>mysql_select_db($database);
      if(!$this->dbid)
      {
        $this->nErr=1;
        $this->sErr="MySqlDB:选择的数据库".$database."不存在!";
        return;
      }
    }

    function IsEmpty($Value)
    {
            if(is_string($Value)&&empty($Value))
               return true;
            return false;
    }

    function Destroy()          //数据清除处理
    {
      sql/Index.html'>mysql_query("commit");
      sql/Index.html'>mysql_close();
    }

    function PrintErr()
    {
      if($this->nErr==1)
      {
        echo($this->sErr."

");
      }
      else
      {
        echo("没有错误

");
      }
    }

        function Execute($SQL)  //直接执行SQL语句
          {
                if(empty($SQL))
                  {
                        $this->nErr=1;
                        $this->sErr="Execute:执行语句不能为空！";
                        return false;
                  }
                 $this->sSQL=$SQL;
                  if(!sql/Index.html'>mysql_query($SQL))
                  {
                          $this->nErr=1;
                          $this->sErr="Execute:SQL语句：".$SQL."
MySql错误：".sql/Index.html'>mysql_error();
                          return false;
                  }
                  return true;
          }

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