我正在尝试制作一款简单的游戏。我目前正在创建一个设置页面，但是当我尝试返回主屏幕时，它不会这样做。能帮我找到我的错误吗？此外，我正在尝试将每个屏幕保留在一个函数中，在我的while循环中，我尝试切换到不同的页面。
import tkinter as tk
win = tk.Tk()
win_state = False
font = ""
world=[ [0,0,0,1],
[0,0,0,0],
[0,0,0,0],
[2,0,0,0]]
def key(event):
global pressed
pressed = event.keysym
pressed = ""
screenMode = 0
def deleteallitems():
for child in win.winfo_children():
child.destroy()
def drawgrid():
global win
global win_state
global canvas
win.geometry("400x600")
canvas = tk.Canvas(win, width = 410, height = 500)
canvas.pack()
for x in range(4):#ys
for y in range(4):#xs
canvas.create_rectangle(x*100+5,y*100+5,x*100+100+5,y*100+100+5)
if(world[x][y]==1):
canvas.create_oval(x*100+5,y*100+5,x*100+100+5,y*100+100+5,fill="Blue")
elif(world[x][y]==2):
canvas.create_rectangle(x*100+5+15,y*100+5+10,x*100+5+20,y*100+100+5-10,fill="green")
canvas.create_rectangle(x*100+5+15,y*100+5+10,x*100+100+5-15,y*100+100+5-50,fill="green")
win.bind("<Key>", key)
button = tk.Button(win, text = "Click Me!", command= moveCharacter)
button.pack()
def moveCharacter():
global pressed
global win_state
global win
global world
pressed = "none"
while (pressed == 'none'):
win.update()
print("Keyed!!")
print (pressed)
breakloop = False
for y in range(4):
for x in range(4):
if(world[y][x] == 1):
world[y][x] = 0
print("Found!!")
try:
if(pressed=="Up"):
if(world[y][x - 1] == 2):
win_state = True
goToWinScreen()
world[y][x - 1]=1
if(pressed=="Down"):
if(world[y][x + 1]==2):
win_state = True
goToWinScreen()
world[y][x + 1]=1
if(pressed=="Right"):
if(world[y - 1][x]==2):
win_state = True
goToWinScreen()
world[y - 1][x]=1
if(pressed=="Left"):
if(world[y - 1][x]==2):
win_state = True
goToWinScreen()
world[y - 1][x]=1
except:
world[y][x]=1
breakloop=True
break
if(breakloop):
break
win.update()
def Draw():
drawgrid()
deleteallitems()
def goToWinScreen():
global screenMode
screenMode = 2
def winScreen():
can = tk.Canvas(win,width=500,height=500)
can.pack()
win.resizable(False,False)
can.create_text(250,250,text = "You win!", fill = '#55B7FF', font = (font,60))
can.configure(background='#7A5EFF')
enterbutton = tk.Button(win, text="Home",command = changeToHome)
enterbutton.configure(activebackground = '#7A5EFF', width=10, height=2)
can.create_window(410/2,300,anchor = tk.NW, window = enterbutton)
win.mainloop()
def drawStart():
global win
win.title("Home Screen")
parent = tk.Frame(win)
win.resizable(False,False)
win.geometry('400x400')
title = tk.Label(win, text = "Simple Game", font=(font, 24, 'bold'))
title.pack(fill="x", pady = "50")
playButton = tk.Button(win, text="Play", width=10, command = changeToPlay)
playButton.pack(fill = "y", pady = (0, 50))
settingButton = tk.Button(win, text="Settings", width=10, command = changeToSettings)
settingButton.pack(fill = "y")
parent.pack(expand=1)
win.mainloop()
def changeToSettings():
global screenMode
screenMode = 3
def changeToPlay():
global screenMode
screenMode = 1
def Settings():
global fontfamily, win
win = tk.Tk()
win.geometry('400x400')
win.title("Settings")
fontfamily = tk.StringVar(win)
fontfamily.set("Arial")
fontFamilyMenu = tk.OptionMenu(win, fontfamily, "Arial", "Courier New", "Comic Sans MS", "Fixedsys", "MS Sans Serif", "MS Serif", "Symbol", "System", "Verdana")
fontFamilyMenu.pack(pady = (25, 300))
home = tk.Button(win,text="Home",command = changeToHome)
home.pack()
win.mainloop()
def changeToHome():
global screenMode
global font
font = fontfamily.get()
screenMode = 0
while 1:
if(screenMode == 0):
drawStart()
if(screenMode == 1):
Draw()
if(screenMode == 2):
winScreen()
if(screenMode == 3):
Settings()
win.update()
答案 0 :(得分：1)
你试着不使用while循环怎么样？ 我修改了你的代码，但它远非完美：
import tkinter as tk
"""I am going to make a game to use arrow keys to move a character to a flag"""
font, win = "", '' # Define win so you can use 'global' or you cna pass it by argument
world=[ [0,0,0,2],
[0,0,0,0],
[0,0,0,0],
[1,0,0,0]]
def drawgrid():
global win
canvas = tk.Canvas(win, width = 400, height = 400)
for x in range(4):#ys
for y in range(4):#xs
canvas.create_rectangle(x*100+5,y*100+5,x*100+100+5,y*100+100+5)
if(world[x][y]==1):
canvas.create_oval(x*100+5,y*100+5,x*100+100+5,y*100+100+5,fill="Blue")
elif(world[x][y]==2):
canvas.create_rectangle(x*100+5+15,y*100+5+10,x*100+5+20,y*100+100+5-10,fill="green")
canvas.create_rectangle(x*100+5+15,y*100+5+10,x*100+100+5-15,y*100+100+5-50,fill="green")
def drawStart():
global win
win = tk.Tk()
win.title("Home Screen")
parent = tk.Frame(win)
win.resizable(False,False)
win.geometry('400x400')
title = tk.Label(win, text = "Simple Game", font=(font, 24, 'bold'))
title.pack(fill="x", pady = "50")
playButton = tk.Button(win, text="Play", width=10)
playButton.pack(fill = "y", pady = (0, 50))
settingButton = tk.Button(win, text="Settings", width=10, command = changeToSettings)
settingButton.pack(fill = "y")
parent.pack(expand=1)
win.mainloop()
def changeToSettings():
win.destroy() # Destroy win panel
Settings() # Call settings
def Settings():
global fontfamily, win
win = tk.Tk()
win.geometry('400x400')
win.title("Settings")
fontfamily = tk.StringVar(win)
fontfamily.set("Arial")
fontFamilyMenu = tk.OptionMenu(win, fontfamily, "Arial", "Courier New", "Comic Sans MS", "Fixedsys", "MS Sans Serif", "MS Serif", "Symbol", "System", "Verdana")
fontFamilyMenu.pack(pady = (25, 300))
home = tk.Button(win,text="Home",command = changeToHome)
home.pack()
win.mainloop()
def changeToHome():
win.destroy() # Destroy win panel
drawStart() # Call start window
drawStart()