python实现一个简单的桌面倒计时小程序

叁歲伎倆 2024-02-18 09:23 79阅读 0赞

> 本章内容主要是利用python制作一个简单的桌面倒计时程序，包含开始、重置 、设置功能。

**目录**

一、效果演示

二、程序代码

--------------------

## 一、效果演示 ##

![0b284f90c9174e95924bce246c33ccb7.png][]

## 二、程序代码 ##

#!/usr/bin/python
    # -*- coding: UTF-8 -*-
    """
    @author: Roc-xb
    """
    
    import tkinter as tk
    from tkinter import simpledialog
    from tkinter import messagebox
    
    class CountdownTimer:
        def __init__(self, root):
            self.root = root
            self.root.title("倒计时程序")
            self.root.geometry("450x300")
    
            self.countdown_value = 60
            self.is_counting = False
    
            self.canvas = tk.Canvas(self.root, width=200, height=200, bg="white")
            self.canvas.place(x=20, y=20)
    
            self.countdown_label = tk.Label(self.root, text="倒计时: 60s", font=("Arial", 20))
            self.countdown_label.place(x=250, y=20)
    
            self.start_button = tk.Button(self.root, text="开始", command=self.start_countdown)
            self.start_button.place(x=250, y=70)
    
            self.reset_button = tk.Button(self.root, text="重置", command=self.reset_countdown)
            self.reset_button.place(x=250, y=120)
    
            self.set_button = tk.Button(self.root, text="设置", command=self.set_countdown)
            self.set_button.place(x=250, y=170)
    
        def start_countdown(self):
            if self.is_counting:
                return
    
            self.is_counting = True
            self.countdown()
    
        def countdown(self):
            if self.countdown_value > 0 and self.is_counting is True:
                self.countdown_value -= 1
                self.countdown_label.config(text="倒计时: " + str(self.countdown_value) + "s")
                self.canvas.delete("all")
                self.canvas.create_rectangle(0, 200 - self.countdown_value * 2, 200, 300, fill="green")
                self.root.after(1000, self.countdown)
            elif self.countdown_value > 0 and self.is_counting is False:
                self.canvas.delete("all")
                self.is_counting = False
                return
            else:
                self.is_counting = False
                messagebox.showinfo("提示", "倒计时结束")
    
        def reset_countdown(self):
            self.is_counting = False
            self.countdown_value = 60
            self.countdown_label.config(text="倒计时: " + str(self.countdown_value) + "s")
            self.canvas.delete("all")
    
        def set_countdown(self):
            if self.is_counting:
                return
    
            value = tk.simpledialog.askinteger("设置倒计时", "请输入倒计时时间（秒）：", parent=self.root)
            if value is not None:
                self.countdown_value = value
                self.countdown_label.config(text="倒计时: " + str(self.countdown_value) + "s")
                self.canvas.delete("all")
    
    
    if __name__ == '__main__':
        root = tk.Tk()
        app = CountdownTimer(root)
        root.mainloop()

[0b284f90c9174e95924bce246c33ccb7.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/18/2dd044f921454e0394aa1472a2bd722f.png