MSComm怎么是返回上一指令的果？
代如下：

C/C++ code

//---------------------------------------void __fastcall TForm1::Button1Click(TObject *Sender){    MSComm1->OutBufferCount = 0;    MSComm1->Output = Edit1->Text + "\r";    MSComm1->RThreshold = 1;    Memo1->Lines->Add("\n" + Edit1->Text);    Memo1->Lines->Add(temp);}//---------------------------------------void __fastcall TForm1::MSComm1Comm(TObject *Sender){    OleVariant rec;    rec = MSComm1->Input;    temp = temp + rec.AsType(varString);    MSComm1->InBufferCount = 0;}//---------------------------------------

行后送指令，它是返回上一指令的行果而不是前指令的返回值，我以是需要
但是我用Sleep（1000）后，果也是。有高手知道是怎么回事？

[解决办法]
....
if (tmp[strlen(tmp.c_str()) - 1 ] == '\r') {
//do somethings
tmp = "";
}