void __fastcall TForm1::Button1Click(TObject *Sender)   
  {   
      int i;   
    
      for (i = 0; i < Table1->FieldCount; i++)
      {   
          if (!strcmp(Edit1->Text.c_str(), Table1->Fields->Fields[i]->FieldName.c_str()))
          {   
              Edit2->Text = "ok" + Table1->Fields->Fields[i]->FieldName;   
              break;   
          }   
      }   
    
      if (i == Table1->FieldCount)
      {   
          Edit2->Text = "no";   
      }   
  }

字段是否存在

C++