示例1 classChatWidget(QDockWidget):send_message_signal=Signal(str,unicode)scroll_to_bottom_signal=Signal()show_message_signal=Signal(str,str,float,str,str,str)show_history_message_signal=Signal(str,str,datetime.datetime,str,str,str,bool)show_history_since_signal=Signal(float)show_history_num_mess...