Python3和pyqt5实现控件数据动态显示方式

import sys
import random
import numpy as np
from time import sleep
import datetime
from PyQt5 import QtWidgets
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class WorkThread(QThread):
  # 初始化线程
  def __int__(self):
    super(WorkThread, self).__init__()
  #线程运行函数
  def run(self):
    while True:
      global T_value
      global P_value
      T_value = random.randint(200,225)
      P_value = random.randint(150,200)
      print(T_value, P_value)
      sleep(3)

class plotwindows(QtWidgets.QWidget):
  def __init__(self):
    super(plotwindows,self).__init__()
    layout = QFormLayout()
    self.edita3 = QLineEdit()
    self.edita4 = QLineEdit()
    self.edita5 = QLineEdit()
    layout.addRow("A数值", self.edita3)
    layout.addRow("B数值", self.edita4)
    layout.addRow("C数值", self.edita5)
    self.setLayout(layout)
    self.Mytimer()

def Mytimer(self):
  timer = QTimer(self)
  timer.timeout.connect(self.update)
  timer.start(100)

def update(self):
  self.edita3.setText(str(T_value))
  self.edita4.setText(str(P_value))
  global SUM_value
  SUM_value = T_value + P_value
  self.edita5.setText(str(SUM_value))

def mainwindows():
  app =QtWidgets.QApplication(sys.argv)
  new = plotwindows()
  new.show()
  sys.exit(app.exec_())

if __name__ == "__main__":
  workThread = WorkThread()
  workThread.start()
  mainwindows()