如下所示：
# -*- coding: utf-8 -*-
import numpy as np
from PyQt5.QtCore import QTimer, QObject
from PyQt5.QtWidgets import QWidget, QApplication
import sys
import time
class my_timer(QWidget):
def __init__(self):
super(my_timer, self).__init__()
self.my_t = QTimer(self)
# self.my_t.setInterval(10
