怎么防止qt窗口卡死？？

Question

# -*- coding:utf-8 -*-

import sys
import time
from PyQt5.QtWidgets import QApplication,QWidget,QLabel,QPushButton,QVBoxLayout,QHBoxLayout,QComboBox,QRadioButton,QLineEdit
from PyQt5.QtGui import QMovie,QPixmap
from PyQt5.QtCore import Qt,QBuffer,QByteArray,QIODevice,pyqtSignal,QThread,QEventLoop,QSize,QTimer

class win(QWidget):
    def __init__(self,parent=None):
        super(win,self).__init__(parent)
        self.resize(500,500)
        self.child = t()
        self.child.hello.connect(self.hi)
        self.child.start()
    def hi(self,msg):
        print(111)
class t(QThread):
    hello = pyqtSignal(str)
    def __init__(self,parent=None):
        super(t,self).__init__(parent)
    def __del__(self):
        self.wait()
    def run(self):
        app.processEvents()
        self.loop = QEventLoop()
        self.lbl = QLabel()
        self.lbl.resize(300,300)
        self.lbl.show()
        self.t1 = t1()
        self.t1.hell.connect(self.qu)
        self.t1.start()
        self.loop.exec_()
    def qu(self,msg):
        if msg:
            self.lbl.quit()
            self.loop.quit()
class t1(QThread):
    hell = pyqtSignal(str)
    def __init__(self,parent=None):
        super(t1,self).__init__(parent)
    def run(self):
        time.sleep(20)
        self.hell.emit("111")
if __name__=="__main__":
    app = QApplication(sys.argv)
    win=win()
    win.show()
    sys.exit(app.exec_())

是QEventLoop用错了吗？？？

Answer 1

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 请看👉 ：Qt窗口在双屏上不显示的问题及解决方法

如果你已经解决了该问题, 非常希望你能够分享一下解决方案, 写成博客, 将相关链接放在评论区, 以帮助更多的人 ^-^