qt静态函数呼叫信号
class globalCalcThread; externglobalcalcthread * g _ calc thread; classglobalcalcthread : publicqthread { q _ object public : globalcalcthread (; ~globalCalcThread (; //添加静态函数以使外部函数调用静态void change (; 受保护的:语音运行(; signals: void onChange (; (; globalcalcthread * g _ calc thread=newglobalcalcthread; voidglobalcalcthread : change ((g _ calc thread-emit signal ) ); } voidglobalcalcthread : emit signal ((emit this-onchange ); }connect(g_calcthread,signal(onchange ) )、this,slot (sl _ change ) ) ); 在外部change ) )调用静态成员函数可以发送信号