多线程/多进程+QProgressBar实现进度条

 

多线程+QProgressBar实现进度条：

import threading

from PyQt5.Qt import * #刚开始学习可以这样一下导入
import sys,time

rate = 0
class MyProcessBar(QProgressBar):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("test的学习")
        self.resize(300,30)
        self.set_ui()

    def set_ui(self):
        timer = QTimer(self)
        timer.start(100)
        timer.timeout.connect(self.timer_timeout_slot)

    def timer_timeout_slot(self):
        self.setValue(rate+1)

def create_ui_show():
    app =QApplication(sys.argv)
    processBar = MyProcessBar()
    processBar.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    thread1 = threading.Thread(target=create_ui_show)
    thread1.start()

    for i in range(100):
        time.sleep(0.05)
        rate = i
    if i == 99:
        print("下载完成")

多进程+QProgressBar实现进度条：

import multiprocessing

from PyQt5.Qt import * #刚开始学习可以这样一下导入
import sys,time

def create_ui_show(rate):
    app  = QApplication(sys.argv)
    progressBar = QProgressBar()

    timer = QTimer()
    def test():
        progressBar.setValue(rate.value+1)
        if rate.value == 99:
            sys.exit(0)
    timer.timeout.connect(test)
    timer.start(100)

    progressBar.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    rate = multiprocessing.Value("d",0)  #初始的rate.value = 0

    process1 = multiprocessing.Process(target=create_ui_show,args=(rate,))
    process1.start()

    for i in range(100):
        time.sleep(0.1)
        rate.value = i