# -*- coding: utf-8 -*- 
'''
    【簡介】
	PyQT5中QThread範例
 
  
'''

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

global sec
sec=0

def setTime():
	global  sec
	sec+=1
	# LED顯示數字+1
	lcdNumber.display(sec)          

def work():
	# 計時器每秒計數
	timer.start(1000)              
	for i in range(2000000000):
		pass
	
	timer.stop()

if __name__ == "__main__":  	
	app = QApplication(sys.argv) 
	top = QWidget()
	top.resize(300,120)
    
	# 垂直佈局類別
	layout = QVBoxLayout(top)    
	# 增加一個顯示面板
	lcdNumber = QLCDNumber()             
	layout.addWidget(lcdNumber)
	button=QPushButton("測試")
	layout.addWidget(button)

	timer = QTimer()
	# 每次計時結束，觸發setTime
	timer.timeout.connect(setTime)      
	button.clicked.connect(work)  
    
	top.show()
	sys.exit(app.exec_())