MYSQL的操作类（已封装）

   function SetValue($Index,$Value) //指定数据，跟在AddNew后执行;
    {
             if($this-＞NewEdit==0)
             {
                $this-＞nErr=1;
                $this-＞sErr="SetValue:请先执行AddNew()或者Edit()！";
                return;
             }
             if(is_int($Index))
             {
                 if($Index＜0||$Index＞$this-＞nCols)
                 {
                    $this-＞nErr=1;
                    $this-＞sErr="SetValue:插入不存在的列值！";
                    return;
                 }
                 $this-＞aNew[$Index]=$Value;
                 $tmpIn=$Index;
             }
             elseif(is_string($Index))
             {
                $Index=strtolower($Index);
                for($i=0;$i＜$this-＞nCols;$i++)
                {
                    if($this-＞aFName[$i]==$Index)
                       break;
                }
                if($i==$this-＞nCols)
                {
                    $this-＞nErr=1;
                    $this-＞sErr="SetValue:插入不存在的列值！";
                    return;
                 }
                 $this-＞aNew[$i]=$Value;
                 $tmpIn=$i;
             }
                 if(!empty($this-＞sName))
                    $this-＞sName.=",";
                 $this-＞sName.=$this-＞aFName[$tmpIn];
                 //根据当前字段的类型生成相应的新值
                 if($this-＞sValue!="#@!")
                    $this-＞sValue.=",";
                 else
                    $this-＞sValue="";
                 $ftype=@mysql_field_type($this-＞nResult,$i);
                 //echo($ftype.",".$this-＞aNew[$i].",".$i.":".$sValue."＜br＞");
               
                 switch($ftype)
                 {
                  case "string":
                  case "date":
                  case "datetime":
                        $this-＞sValue.="\"".$this-＞aNew[$tmpIn]."\"";
                        $this-＞sEdit="\"".$this-＞aNew[$tmpIn]."\"";
                        break;
                  case "int":
                  case "unknown":
                       $this-＞sValue.=$this-＞aNew[$tmpIn];
                       $this-＞sEdit=$this-＞aNew[$tmpIn];
                       break;
                  default:
                       $this-＞nErr=1;
                       $this-＞sErr="Update:字段名为".$this-＞aFName[$tmpIn]."的".$ftype."类型目前版本不支持，请用别的方法添加数据！";
                       return;
                 }

                 if($this-＞NewEdit==2)
                    $this-＞sName.="=".$this-＞sEdit;
      }

    function Update()    //存储新值到数据库
    {
      $strSQL="";

      if($this-＞NewEdit==0)
      {
        $this-＞nErr=1;
        $this-＞sErr="Update:请先执行AddNew()或者Edit()，再用SetValue()添加值！";
        return;
      }

      if(empty($this-＞sValue))
      {
        $this-＞nErr=1;
        $this-＞sErr="Update:在数据为空的情况下，不能添加或修改数据！";
        return;
      }

      switch($this-＞NewEdit)
      {
       case 1:       //添加
            $strSQL="insert into ";
            $strSQL.=$this-＞sTName;
            $strSQL.=" (".$this-＞sName.") ";
            $strSQL.="values (".$this-＞sValue.")";
            break;
      case 2:          //修改
            $strSQL="update ";
            $strSQL.=$this-＞sTName;
            $strSQL.=" set ";
            $strSQL.=$this-＞sName;
            if(!empty($this-＞sEditCon))
                $strSQL.=" where ".$this-＞sEditCon;
            break;
      default:
           $this-＞nErr=1;
           $this-＞sErr="Update:Update()生成SQL语句出错，请检查！";
           return;
      }

      $this-＞sSQL=$strSQL;
      if(!$this-＞nResult=mysql_query($strSQL))
      {
        $this-＞nErr=1;
        $this-＞sErr="Update:SQL语句：".$strSQL."＜br＞＜br＞MySql错误：".mysql_error();
        return;
      }
       //echo($this-＞sSQL."＜br＞");
      //作清理工作
      $this-＞NewEdit=0;
      unset($this-＞aNew);
      mysql_query("commit");
    }
  }

请将全角＜＞换成半角