PyQt5–QProgressBar
1 # -*- coding:utf-8 -*- 2 ''' 3 Created on Sep 20, 2018 4 5 @author: SaShuangYiBing 6 7 Comment: 8 ''' 9 import sys 10 from PyQt5.QtCore import QBasicTimer 11 from PyQt5.QtWidgets import QApplication,QWidget,QProgressBar,QPushButton 12 13 class New_test(QWidget): 14 def __init__(self): 15 super().__init__() 16 self.initUI() 17 18 def initUI(self): 19 self.pbar = QProgressBar(self) 20 self.pbar.setGeometry(30,40,200,25) 21 22 self.btn = QPushButton('Start',self) 23 self.btn.move(75,80) 24 self.btn.clicked.connect(self.doAction) 25 26 self.timer = QBasicTimer() 27 self.step = 0 28 29 self.setGeometry(300,300,280,170) 30 self.setWindowTitle('QProgress Bar') 31 self.show() 32 33 def timerEvent(self, e): 34 if self.step >= 100: 35 self.timer.stop() 36 self.btn.setText('Finished') 37 return 38 self.step += 1 39 self.pbar.setValue(self.step) 40 41 def doAction(self,e): 42 if self.timer.isActive(): 43 self.timer.stop() 44 self.btn.setText('Start') 45 else: 46 self.timer.start(100,self) 47 self.btn.setText('Stop') 48 49 if __name__ == '__main__': 50 app = QApplication(sys.argv) 51 ex = New_test() 52 sys.exit(app.exec_())
