# 导入所需的库
from tkinter import *
from tkinter import ttk

# 创建tkinter框架或窗口实例
win = Tk()

# 设置窗口大小
win.geometry("700x350")

running = True

# 定义在循环中打印的文本函数
def print_text():
   if running:
      print("Hello World")

   win.after(1000, print_text)

# 定义开始循环的函数
def on_start():
   global running
   running = True

# 定义停止循环的函数
def on_stop():
   global running
   running = False

canvas = Canvas(win, bg="skyblue3", width=600, height=60)
canvas.create_text(150, 10, text="单击Start/Stop执行代码", font=('', 13))
canvas.pack()

# 添加按钮以开始/停止循环
start = ttk.Button(win, text="Start", command=on_start)
start.pack(padx=10)

stop = ttk.Button(win, text="Stop", command=on_stop)
stop.pack(padx=10)

# 运行在窗口中打印文本的函数
win.after(1000, print_text)

win.mainloop()

Hello World
Hello World
Hello World
Hello World
Hello World

进程退出代码0