如何在Python中的多个while语句之间切换

Question

我正在做一个程序，我需要切换不同的循环。 当我试图切换回上一个循环时，我崩溃了。在

有什么建议吗？在

注：以下是示例

例如功能=主页

（改变回路）

函数=txtbox

（改变回路）

Function=Home（此处崩溃）

import pygame, sys, time, random
from pygame.locals import *
import math
import sys
import os
# set up pygame
pygame.init()




# set up the window
WINDOWWIDTH = 1200
WINDOWHEIGHT = 650
windowSurface = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT), 1, 32)
pygame.display.set_caption("Mango")


Function = "Home"

font = pygame.font.SysFont("Fonts", 30)

#colors
TEXTCOLOR = (255, 255, 255)
TEXTCOLORS = (255, 0, 0)


# run the game loop
while Function == "Home":
    # check for the QUIT event
    events = pygame.event.get()
    for event in events:
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        elif event.type == pygame.MOUSEBUTTONUP:
            Function = "txtbox"
            break


    pygame.display.flip()



while Function == "txtbox":

    events = pygame.event.get()
    # process other events
    for event in events:

          if event.type == pygame.MOUSEBUTTONUP:
            Function = "Home"
            break

    pygame.display.flip()

Answer 1

它不会崩溃。当Function在最后一个循环中设置为“Home”时，它就完成了执行。这个循环就结束了。在

尝试将这两个while循环封装到另一个永远运行的while循环中。在

while True:
    while Function == "Home":
        # check for the QUIT event
        events = pygame.event.get()
        for event in events:
            if event.type == QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.MOUSEBUTTONUP:
                Function = "txtbox"
                break


        pygame.display.flip()



    while Function == "txtbox":

        events = pygame.event.get()
        # process other events
        for event in events:

              if event.type == pygame.MOUSEBUTTONUP:
                Function = "Home"
                break

        pygame.display.flip()