tkinter的应用

import tkinter as tk

window = tk.Tk()
window.title("我的第一个视窗")
window.geometry("200x100")

#  这里显示视窗内容
var = tk.StringVar()
label = tk.Label(window,textvariable=var,font=('Arial',12),bg = 'yellow',width = 15,height=2)
label.pack()
show = False
def onclick():
    global show
    if show == False:
        show = True
        var.set('你点我了！')
    else:
        show = False
        var.set('')
b = tk.Button(window,text = '点我啊！',width = 15,height = 2,command = onclick)
b.pack()

#视窗展示
window.mainloop()