#!/usr/bin/python3#-*-coding:utf-8-*-"""ZetCodePyQt5tutorialInthisexample,weshowhowtoemitacustomsignal.Author:JanBodnarWebsite:zetcode.comLastedited:August2017"""importsysfromPyQt5.QtCore

描述AnearthquaketakesplaceinSoutheastAsia.TheACM(AsiaCooperatedMedicalteam)havesetupawirelessnetworkwiththelapcomputers,butanunexpectedaftershock（预余震）attacked,allcomputersinthenetworkwereallbroken.Thecomputersarerepai