我在python 3.6中使用了tkinter,所以我可以学习GUI编程。我试图创建一个按钮。当我尝试pack按,,或按钮时left,没有得到输出,而frame命令的工作正常。请帮助我。提前致谢。righttopbottomside=top
from tkinter import *
import tkinter as tk
root = tk.Tk()
topframe = Frame(root)
topframe.pack()
bottomframe = Frame(root)
bottomframe.pack(side=BOTTOM)
button1 = Button(topframe, text="helo boys", fg="green")
button1.pack()
button2 = Button(topframe, text="how are you", fg="red")
button2.pack(side=LEFT)
button3 = Button(bottomframe, text="we are fine", fg="blue")
button3.pack(side=RIGHT)
root.mainloop()
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