在 tkinter 中的窗口之间切换

Question

First I have open main window then through that I have another window called order .Now I have to make a button that get to the main window again

def back():
    wn.destroy()
    import purchase
Button(text="Back",width='30',height='5',command=back,fg='black',bg='green',bd='5',font=(40),command=back).place(x='100',y='600')

Answer 1

You need to make the button start a function to open the window.

Ex.

def OpenNewWindow:
    newWindow = TopLevel(master)

B1 = tk.Button(text="example", command = OpenNewWindow
B1.pack()

Treat it like a normal window: geometry, title, etc.

but remember one thing: KEEP THE TOPLEVEL IN THE MAIN LOOP