定时闹钟与定时任务

功能描述:

1. 当前时间展示
2. 定时闹钟实现
3. 可通过os模块拓展其他定时任务

开发环境:

• windows, pycharm, tkinter, threading, datetime, time, ctypes

涉及知识点:

1. GUI界面tkinter模块的使用
2. 函数定义与使用
3. 基本语法结构的使用
4. 字符串,列表,元组的使用
5. 多线程使用
6. 时间模块的使用
7. 类型转换

代码实现

import os
import tkinter
import time
from threading import Thread
from datetime import datetime
import tkinter.messagebox as ms

import ctypes
player = ctypes.windll.kernel32

root = tkinter.Tk()
root.title("我的时钟")
root.minsize(width=300, height=400)

now_time_hour = datetime.now().hour
now_time_min = datetime.now().minute
now_time_sec = datetime.now().second

hour = tkinter.StringVar(value=now_time_hour)
minute = tkinter.StringVar(value=now_time_min)
second = tkinter.StringVar(value=now_time_sec)
clock_hour = 0
clock_minute = 0
clock_second = 0
clock_flag = False

def clock_set():
    global clock_hour, clock_minute, clock_second
    clock_hour = int(hour_entry.get())
    clock_minute = int(minute_entry.get())
    clock_second = int(second_entry.get())
    ms.showwarning("重置闹钟", "闹钟已重置!\n")


def start_set():
    global clock_flag
    clock_flag = not clock_flag
    if clock_flag:
        ms.showwarning("闹钟开启", "闹钟成功开启!\n{}时{}分{}秒响铃".format(clock_hour, clock_minute, clock_second))


def timer():
    while True:
        second_num = int(second.get())
        minute_num = int(minute.get())
        hour_num = int(hour.get())

        if clock_flag:
            confirm_bt["text"] = "ON"
        else:
            confirm_bt["text"] = "OFF"

        if clock_flag and (hour_num, minute_num, second_num) == (clock_hour, clock_minute, clock_second):
            for i in range(3):
                player.Beep(2000, 1000)
            # 这里可以添加其他定时任务,关机,启动桌面应用....
            print("叮 叮 叮 . . .")
            os.system("shutdown -s -t 600")

        second_num += 1
        if second_num == 60:
            second_num = 0
            minute_num += 1
            if minute_num == 60:
                minute_num = 0
                hour_num += 1
                if hour_num == 24:
                    hour_num = 0

        hour.set("%02d" % hour_num)
        minute.set("%02d" % minute_num)
        second.set("%02d" % second_num)
        time.sleep(1)

if __name__ == '__main__':
    current_time_lab = tkinter.Label(root, width=10, height=1, text="现在时间：", font=3)
    current_time_lab.place(x=10, y=5)

    hour_lab = tkinter.Label(root, width=3, height=1, textvariable=hour, bg="#D6EAF8", font=1)
    minute_lab = tkinter.Label(root, width=3, height=1, textvariable=minute, bg="#D6EAF8", font=1)
    second_lab = tkinter.Label(root, width=3, height=1, textvariable=second, bg="#D6EAF8", font=1)
    sep_lab1 = tkinter.Label(root, width=1, height=1, text=":", font=1)
    sep_lab2 = tkinter.Label(root, width=1, height=1, text=":", font=1)
    hour_lab.place(x=40, y=40)
    sep_lab1.place(x=75, y=40)
    minute_lab.place(x=90, y=40)
    sep_lab2.place(x=125, y=40)
    second_lab.place(x=140, y=40)

    clock_set_lab = tkinter.Label(root, width=10, height=1, text="闹钟设置：", font=3)
    clock_set_lab.place(x=10, y=80)

    hour_entry = tkinter.Entry(root, width=3, bg="#00CC00", justify="center", font=1)
    minute_entry = tkinter.Entry(root, width=3, bg="#00CC00", justify="center", font=1)
    second_entry = tkinter.Entry(root, width=3, bg="#00CC00", justify="center", font=1)
    sep_lab3 = tkinter.Label(root, width=1, height=1, text=":", font=1)
    sep_lab14 = tkinter.Label(root, width=1, height=1, text=":", font=1)
    hour_entry.place(x=40, y=120)
    sep_lab3.place(x=75, y=120)
    minute_entry.place(x=90, y=120)
    sep_lab14.place(x=125, y=120)
    second_entry.place(x=140, y=120)
    hour_entry.insert("end", "00")
    minute_entry.insert("end", "00")
    second_entry.insert("end", "00")

    set_bt = tkinter.Button(root, text="重置闹钟", width=10, height=1, bg="#F5CBA7", command=clock_set)
    confirm_bt = tkinter.Button(root, text="OFF", width=10, height=1, bg="#D35400", command=start_set)
    set_bt.place(x=35, y=160)
    confirm_bt.place(x=135, y=160)

    clock_t = Thread(target=timer)
    clock_t.start()

    root.mainloop()