在tkinter中显示菜单

Question

我正在用Tkinter编写一个connect-4游戏，我想在游戏过程中向用户呈现几个菜单选项。

问题是菜单倾向于一起显示，如下面的代码片段所示。例如，在present_player_choice()中，我想要显示playerA的菜单，获得答案，然后显示playerB的菜单。这在这里并不是那么关键，但这是我经常遇到的问题。

after()似乎不是答案，因为我不希望菜单在一段时间后消失，而是在用户提交答案后消失。

此外:在为菜单编写“确定”按钮时，我使用了“退出”。但是quit会关闭整个窗口小部件！我想让gui继续，只是关闭菜单，而不是整个GUI！

我知道这些问题听起来很愚蠢，但我已经在这个问题上工作了一段时间，真的很困惑。提前感谢您的帮助。

from tkinter import *
class GUI:

def __init__(self, root):
    self.__root = root
    self.__player_A = None
    self.__player_B = None

def assign_player(self, player, identity):
    if player == "player A":
        self.__player_A = identity
    elif player == "player B":
        self.__player_B = identity
    print("Player A is:  " + str(self.__player_A))
    print("Player B is:  " + str(self.__player_B))

def present_player_choice(self):
    self.ask_choose_player("player A")
    self.ask_choose_player("player B")
    Button(self.__root, text="OK", command=quit).pack(anchor=W)

def ask_choose_player(self, player):

    Label(self.__root, text="Who would you like to play " + player + "?").pack(anchor=W)
    var = IntVar()
    Radiobutton(self.__root, text="human", variable=var,
                command=lambda:self.assign_player(player, HUMAN), value=1).pack(anchor=W)
    Radiobutton(self.__root, text="computer", variable=var,
                command=lambda:self.assign_player(player, COMPUTER), value=2).pack(anchor=W)


if __name__ == '__main__':

root = Tk()
gui = GUI(root)
gui.present_player_choice()
mainloop()

Answer 1

最快的方法是在您的类中添加一个Frame，我们可以使用它来重置内容，然后将对播放器B的调用移到assign_player方法中的一个条件中，以便在选择一个选项时更新播放器B的帧。

您可能还希望将tristatevalue=0添加到单选按钮，以便没有默认选择。

示例：

import tkinter as tk


class GUI:
    def __init__(self, root):
        self.__root = root
        self.__player_A = None
        self.__player_B = None
        self.frame = None

    def assign_player(self, player, identity):
        if player == "player A":
            self.__player_A = identity
            print("Player A is:  " + str(self.__player_A))
            self.ask_choose_player("player B")
            tk.Button(self.__root, text="OK", command=quit).pack(anchor=tk.W)
        elif player == "player B":
            self.__player_B = identity
            print("Player B is:  " + str(self.__player_B))
            self.frame.destroy()

    def present_player_choice(self):
        self.ask_choose_player("player A")

    def ask_choose_player(self, player):
        if self.frame is None:
            self.frame = tk.Frame(self.__root)
        else:
            self.frame.destroy()
            self.frame = tk.Frame(self.__root)

        self.frame.pack(fill='both', expand=1)
        tk.Label(self.frame, text="Who would you like to play " + player + "?").pack(anchor=tk.W)
        var = tk.IntVar()

        tk.Radiobutton(self.frame, text="human", variable=var, tristatevalue=0,
                       command=lambda: self.assign_player(player, 'human'), value=1).pack(anchor=tk.W)
        tk.Radiobutton(self.frame, text="computer", variable=var, tristatevalue=0,
                       command=lambda: self.assign_player(player, 'pc'), value=2).pack(anchor=tk.W)


if __name__ == '__main__':
    root = tk.Tk()
    gui = GUI(root)
    gui.present_player_choice()
    root.mainloop()

选择之前/之后：

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