界面有两个按钮,一个启动QThread线程,一个启动threading.Thread线程,做的同样的工作,模拟耗时操作。代码如下:
import sys, os
import threading
import time
import PyQt5.QtWidgets as qtw
from PyQt5.QtCore import QThread
from PyQT5.test import Ui_MainWindow
class MyWindow(qtw.QMainWindow, Ui_MainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
self.btn_begin1.clicked.connect(startWork1)
self.btn_begin2.clicked.connect (startWork2)
self.show ()
class MyThread(QThread):
# signal = pyqtSignal(int)
def __init__(self):
super().__init__()
def __del__(self):
self.wait()
def run(self):
print("run")
work(15)
def startWork1():
thread = MyThread()
print ("start")
thread.start ()
print ("start finish")
def startWork2():
threading.Thread(target=work, args=(15,)).start()
def work(n):
print ("work")
for i in range(1, n+1):
print(str(i)+": do something...")
time.sleep(1)
if __name__ == "__main__":
app = qtw.QApplication(sys.argv)
w = MyWindow()
app.exec_ ()
问题1:点击按钮1启动Qthread,5秒后UI界面出现假死,点击按钮2启动threading.Thread不会出现假死
问题2:在MyThread中把def del(self):self.wait()这个方法删除后,正常运行程序闪退,没有运行到run()方法,以debug方式运行,能正常运行,且点击按钮1时不会出现UI界面假死
我的环境为python3.6 pyqt5-5.13.0 pycharm2017.3
请教下是什么原因造成上述两个问题。