# -*- coding: utf-8 -*-
'''
關於QTimer.singleShot()的應用記錄
'''
import time
import numpy as np
import matplotlib.pyplot as plt
import winsound
import sys
import sklearn
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QLabel
from PyQt5.QtCore import QTimer, Qt

num = 0


class my_num(QWidget):
    def __init__(self):
        super(my_num, self).__init__()
        self.InitUi()

    def InitUi(self):
        self.resize(600, 400)
        self.setWindowTitle('demo')
        self.btn_1 = QPushButton('累加', self)
        self.btn_1.setGeometry(60, 120, 150, 100)
        self.btn_1.clicked.connect(self.m_add)
        self.label = QLabel("<h1>0</h1>", self)  # 設定Label的字型大小，通過html的格式設定
        self.label.setGeometry(300, 120, 300, 100)
        self.label.setAlignment(Qt.AlignCenter)
        self.mt = QTimer(self)

    def my_timer(self):
        if self.btn_1.clicked:
            self.mt.singleShot(500, self.m_add)

    def m_add(self):
        global num
        num += 1
        print('num = {}'.format(num))
        self.label.setText("<h1>{}</h1>".format(num))
        self.my_timer()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    w = my_num()
    w.show()
    sys.exit(app.exec_())
 

我曾經跨過山和大海，也穿過人山人海，我曾經擁有著的一切，轉眼都飄散如煙，我曾經失落失望失掉所有方向，直到看見平凡才是唯一的答案。 ——韓寒《平凡之路》