Qt Runtime Error ! R6025 - pure virtual function call

 connect(&m_connectProc,SIGNAL(finished(int,QProcess::ExitStatus)),this,SLOT(verifyConnectionResults(int,QProcess::ExitStatus))); 用QProcess变量做成员变量时要注意 连接它的槽函数，当析构此成员变量时会执行此函数，会发生上面的错误，所以应该在此类的析构函数里：断开连接！disconnect(&m_connectProc,SIGNAL(finished(int,QProcess::ExitStatus)),this,SLOT(verifyConnectionResults(int,QProcess::ExitStatus)));

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