Question

我正在尝试编写游戏。到目前为止，我已经制作了一个按钮网格，但是我似乎无法使按钮按我希望的方式工作。我认为问题出在x和y没有连接到实际按钮上，但是我已经尝试了所有方法，但似乎无法使其正常工作。以下是我的最新尝试。

import tkinter as tk

jeopardy = tk.Tk() 
jeopardy.geometry("2000x1000")
jeopardy.configure(background="blue")

#------------Questions---------------
def questions():
    global x
    global y
    global sort

    for sort in (x, y):

        if x == 0:
            if y == 0:   
                extra_window = tk.Toplevel(jeopardy)
                label2 = tk.Label(extra_window, text="question")
                label2.pack()

            elif y == 1:
                extra_window = tk.Toplevel(jeopardy)
                label3 = tk.Label(extra_window, text="question")
                label3.pack()

            #etc

#------------Buttongrid---------------
tk.Grid.rowconfigure(jeopardy, 0, weight=1)
tk.Grid.columnconfigure(jeopardy, 0, weight=1)

frame= tk.Frame(jeopardy)
frame.grid(row=0, column=0, sticky="nsew")

for x in range(5):
    tk.Grid.rowconfigure(frame, x, weight=1)
    for y in range(5):
        tk.Grid.columnconfigure(frame, y, weight=1)
        text = 100*(y+1)
        btn = tk.Button(frame, text=str(text), command=questions) 
        sort = btn.grid(column=x, row=y, sticky="nsew")



jeopardy.mainloop()

Answer 1

您有很多重复且无用的globals。您可以使用lambda函数将参数传递给回调函数。我编辑了您的代码以说明问题：

import tkinter as tk 

jeopardy = tk.Tk() 
jeopardy.geometry("1000x500")
jeopardy.configure(background="blue")

#------------Questions---------------
def questions(x, y):
    questiontext = f"question{x}{y}"

    extra_window = tk.Toplevel(jeopardy)
    lab = tk.Label(extra_window, text=questiontext)
    lab.pack()

#------------Buttongrid---------------
tk.Grid.rowconfigure(jeopardy, 0, weight=1)
tk.Grid.columnconfigure(jeopardy, 0, weight=1)

frame= tk.Frame(jeopardy)
frame.grid(row=0, column=0, sticky="nsew")

for x in range(5):
    tk.Grid.rowconfigure(frame, x, weight=1)
    for y in range(5):
        tk.Grid.columnconfigure(frame, y, weight=1)
        text = 100*(y+1)
        btn = tk.Button(frame, text=str(text), command=lambda x=x, y=y: questions(x, y))
        btn.grid(column=x, row=y, sticky="nsew")

jeopardy.mainloop()

lambda x=x , y=y : ...避免使用x，y始终是@Herny Yik的评论所提及的循环的最后一个值。

Answer 2

我不知道您打算通过创建新的Toplevel窗口来做什么，但是当您单击Button时，以下内容将更改它们（不依赖全局变量）：

import tkinter as tk

jeopardy = tk.Tk()
jeopardy.geometry("800x800")
jeopardy.configure(background="blue")

ROWS, COLS = 5, 5
# You'll want to populate this with real questions.
QUESTIONS = [['question {:2d}'.format(j*COLS+i) for i in range(1,COLS+1)]
                for j in range(ROWS)]


tk.Grid.rowconfigure(jeopardy, 0, weight=1)
tk.Grid.columnconfigure(jeopardy, 0, weight=1)

frame = tk.Frame(jeopardy)
frame.grid(row=0, column=0, sticky="nsew")

for x in range(ROWS):
    tk.Grid.rowconfigure(frame, x, weight=1)
    for y in range(COLS):
        tk.Grid.columnconfigure(frame, y, weight=1)
        text = 100*(y+1)
        btn = tk.Button(frame, text=str(text))
        btn.grid(column=x, row=y, sticky="nsew")

        def show_question(btn=btn, x=x, y=y):
            btn.config(text=QUESTIONS[x][y])

        btn.config(command=show_question)

jeopardy.mainloop()

我在tkinter中的按钮不起作用！尝试了一切

2 个答案: