Tkinter使用Progressbar创建和管理进度条的操作代码

import tkinter as tk
from tkinter.ttk import Progressbar
class Simulate_Waiting_State:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title('进度条下载演示')
        self.root.geometry("300x150+1100+150")
        self.interface()
    def interface(self):
        # 创建进度条
        self.progress_bar = Progressbar(self.root, length=200, mode="indeterminate")
        # 创建按钮
        self.start_button = tk.Button(self.root, text="开始", command=self.start_progress)
        self.stop_button = tk.Button(self.root, text="停止", command=self.stop_progress)
        # 将进度条和按钮放置在窗口中
        self.progress_bar.grid(row=0, column=1, pady=20, padx=50, columnspan=100)
        self.start_button.grid(row=1, column=1, padx=75)
        self.stop_button.grid(row=1, column=3)
    def start_progress(self):
        self.progress_bar.start()
    def stop_progress(self):
        self.progress_bar.stop()
if __name__ == '__main__':
    run = Simulate_Waiting_State()
    run.root.mainloop()
import tkinter as tk
from tkinter.ttk import Progressbar
class Simulate_Waiting_State:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title('进度条下载演示')
        self.root.geometry("300x150+1100+150")
        self.interface()
    def interface(self):
        # 创建进度条
        self.progress_bar = Progressbar(self.root, length=200, mode="indeterminate")
        # 创建按钮
        self.start_button = tk.Button(self.root, text="开始", command=self.start_progress)
        self.stop_button = tk.Button(self.root, text="停止", command=self.stop_progress)
        # 将进度条和按钮放置在窗口中
        self.progress_bar.grid(row=0, column=1, pady=20, padx=50, columnspan=100)
        self.start_button.grid(row=1, column=1, padx=75)
        self.stop_button.grid(row=1, column=3)
    def start_progress(self):
        self.progress_bar.start()
    def stop_progress(self):
        self.progress_bar.stop()
if __name__ == '__main__':
    run = Simulate_Waiting_State()
    run.root.mainloop()

import tkinter as tk
from tkinter.ttk import Progressbar
import threading
import time
class Download_Files:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title('进度条下载演示')
        self.root.geometry("300x150+1100+150")
        self.interface()
    def interface(self):
        # 创建进度条
        self.progress_bar = Progressbar(self.root, length=200, mode="determinate")
        # 创建按钮
        self.start_button = tk.Button(self.root, text="开始下载", command=self.download)
        # 将进度条和按钮放置在窗口中
        self.progress_bar.grid(row=0, pady=20, padx=50)
        self.start_button.grid(row=1, padx=50)
        # 进度值最大值
        self.progress_bar['maximum'] = 100
    def download(self):
        """进度条模拟显示下载进度"""
        # 进度值初始值
        initial_value = 0
        while initial_value < 100:
            initial_value += 1
            # 更新进度条的值
            self.progress_bar['value'] = initial_value
            self.root.update()
            # 模拟等待时间时间
            time.sleep(0.1)
    def thread_management(self):
        """启用子线程下载文件"""
        T1 = threading.Thread(target=self.download, daemon=True)
        T1.start()
if __name__ == '__main__':
    run = Download_Files()
    run.root.mainloop()

import tkinter as tk
from tkinter.ttk import Progressbar
from tkinter import messagebox
import threading
import requests
class Download_Files:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title('进度条下载演示')
        self.root.geometry("300x150+850+350")
        self.interface()
    def interface(self):
        # 创建进度条
        self.progress_bar = Progressbar(self.root, length=200, mode="determinate")
        # 创建按钮
        self.start_button = tk.Button(self.root, text="开始下载", command=self.thread_group)
        # 将进度条和按钮放置在窗口中
        self.progress_bar.grid(row=0, pady=20, padx=50)
        self.start_button.grid(row=1, padx=50)
    def download(self):
        # 禁用按钮
        self.start_button.config(state=tk.DISABLED)
        # 下载地址
        url = 'http://www.python.org/ftp/python/2.7.5/Python-2.7.5.tar.bz2'
        file_data = requests.get(url, stream=True)
        # 获取文件大小，单位字节（B）
        if "content-length" in file_data.headers:
            maxbyte = int(file_data.headers["content-length"])
        # 截取文件名称
        filename = url.split("/")[-1]
        with open(filename, "wb") as f:
            downloaded_bytes = 0
            for chunk in file_data.iter_content(chunk_size=1024):
                if chunk:
                    f.write(chunk)
                    downloaded_bytes += len(chunk)
                    # 更新进度条的值
                    # 将已下载的字节数除以文件总大小（maxbyte），然后乘以100，得到已下载的数据量相对于文件总大小的百分比
                    self.progress_bar['value'] = downloaded_bytes / maxbyte * 100
                    self.root.update()
        # 弹窗提示下载完成
        messagebox.showinfo("下载提示", "文件下载完成！")
        # 恢复按钮的可点击状态
        self.start_button.config(state=tk.NORMAL)
        # 下载完成后重置进度条的值
        self.progress_bar['value'] = 0
    def thread_group(self):
        """启用子线程下载"""
        T1 = threading.Thread(name='download', target=self.download, daemon=True)
        T1.start()
if __name__ == '__main__':
    run = Download_Files()
    run.root.mainloop()