pyqt5 tablewidget 利用线程动态刷新数据的方法

#python代码
table=MainWindow_ui.tableWidget_2
table.setItem(i,0,QtWidgets.QTableWidgetItem(str(jcb.Name)))

class Job(QtCore.QThread):#注意这里使用的是qt自己本身的线程，而不能用python自己的线程
  signal2=QtCore.pyqtSignal(tuple)#因为这个信号槽要继承于Qobject，不然会发生没有emit，connect函数的报错，括号里面填写的是发射的数据类型
  def signal2emit(self,var:tuple):
    self.signal2.emit(var)#朝connect的函数发射一个tuple

  def __init__(self, *args, **kwargs):#这里自己实现
    super(Job, self).__init__(*args, **kwargs)
    self.__flag = threading.Event()   # 用于暂停线程的标识
    self.__flag.set()    # 设置为True
    self.__running = threading.Event()   # 用于停止线程的标识
    self.__running.set()   # 将running设置为True
    self.signal2.connect(setItem)#连接发射函数

  def run(self):
    global SystemTime,TimePice#声明要用的全局变量
    while self.__running.isSet():#如果被设置为了true就继续，false就终止了
      self.__flag.wait()   # 为True时立即返回, 为False时阻塞直到内部的标识位为True后返回
      ###################
      #这里写线程要干的事情#
      ###################
      time.sleep(1)

  def pause(self):
    self.__flag.clear()   # 设置为False, 让线程阻塞

  def resume(self):
    self.__flag.set()  # 设置为True, 让线程停止阻塞

  def stop(self):
    self.__flag.set()    # 将线程从暂停状态恢复, 如何已经暂停的话
    self.__running.clear()    # 设置为False 

def setItem(var:tuple):#用于向jcb表格填写内容
  i=var[0]#行
  j=var[1]#列
  s=var[2]#值
  table=MainWindow_ui.tableWidget_2
  if j != 6 :
    table.setItem(i,j,QtWidgets.QTableWidgetItem(str(s)))
  else :
    table.cellWidget(i,6).setValue(s)#这是个进度条来的

def Print_Job():
  rowcol=len(Jcb_Ready_List)+len(Jcb_Wait_List)
  print(rowcol)
  #MainWindow_ui.tableWidget_2.setRowCount(rowcol)
  for i in range(0,rowcol):
    MainWindow_ui.tableWidget_2.showRow(i)
  #for i in range(rowcol,100):
  #  MainWindow_ui.tableWidget_2.hideRow(i)
  for i in range(0,len(Jcb_Ready_List)):
    jcb=Jcb_Ready_List[i]
    table=MainWindow_ui.tableWidget_2
                     #table.setItem(i,0,QtWidgets.QTableWidgetItem(str(jcb.Name)))
    MainThread.signal2emit((i,0,jcb.Name))
    #table.setItem(i,1,QtWidgets.QTableWidgetItem(str(jcb.Arrival_time)))
    MainThread.signal2emit((i,1,jcb.Arrival_time))
    #table.setItem(i,2,QtWidgets.QTableWidgetItem(str(jcb.Need_memory)))
    MainThread.signal2emit((i,2,jcb.Need_memory))
    #table.setItem(i,3,QtWidgets.QTableWidgetItem(str(jcb.Need_time)))
    MainThread.signal2emit((i,3,jcb.Need_time))
    #table.setItem(i,4,QtWidgets.QTableWidgetItem(str(jcb.Already_execution_time)))
    MainThread.signal2emit((i,4,jcb.Already_execution_time))
    #table.setItem(i,5,QtWidgets.QTableWidgetItem(str(jcb.Wait_time)))
    MainThread.signal2emit((i,5,jcb.Wait_time))
    #bar:QtWidgets.QProgressBar=MainWindow_ui.tableWidget_2.cellWidget(i,6)
    #bar.setValue(100-jcb.Need_time/(jcb.Already_execution_time+jcb.Need_time)*100)
    MainThread.signal2emit((i,6,100-jcb.Need_time/(jcb.Already_execution_time+jcb.Need_time)*100))