python 在python中销毁Toplevel tk窗口
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destroying a Toplevel tk window in python
提问by Hortitude
I was trying to write code that would auto-close a Toplevel Tk window in Python.
我试图编写可以在 Python 中自动关闭 Toplevel Tk 窗口的代码。
I ended up getting it to work, but ran into a little problem along the way that I wasn't able to figure out.
我最终让它开始工作，但在此过程中遇到了一个我无法弄清楚的小问题。
The second two buttons work, but the first one doesn't and I don't understand why...
后两个按钮有效，但第一个无效，我不明白为什么......
Any ideas?
有任何想法吗？
from Tkinter import *
root = Tk()
def doDestroy ():
TL.destroy()
TL = Toplevel()
TL.b = Button (TL, text="lambda destroy", command=lambda: TL.destroy)
TL.b.pack()
TL.b2 = Button (TL, text="callback destroy", command=doDestroy)
TL.b2.pack()
de = lambda: TL.destroy()
TL.b3 = Button (TL, text="lambda that works", command=de)
TL.b3.pack()
root.mainloop()
回答by Piotr Lesnicki
Because it returns a function and not its result.
因为它返回一个函数而不是它的结果。
You should put:
你应该把：
command=TL.destroy
or if you used lambda:
或者如果您使用 lambda：
command=lambda: TL.destroy()
