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if(requestData.toHex() ==0x01)//0x01 尝试连接。 { TxData[0]=0x01; requestData.clear(); my_serialport->write(TxData); connect(timer_try,SIGNAL(timeout()),this,SLOT(connect_com(my_serialport,timer_try))); timer_try->start(100); }
出现错误
widget.obj:-1: error: LNK2019: 无法解析的外部符号 "__declspec(dllimport) public: __cdecl QByteArray:perator int(void)const " (__imp_??BQByteArray@@QEBAHXZ),该符号在函数 "public: void __cdecl Widget::connect_com(class QSerialPort *,class QTimer *)" (?connect_com@Widget@@QEAAXPEAVQSerialPort@@PEAVQTimer@@@Z) 中被引用
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