pygame不关闭，并返回到控制台（python）

Question

我使用pygame覆盆子pi和adafruit tft屏幕来显示内容。

#!/usr/bin/python 
from subprocess import * 
from numpy import genfromtxt 
import pygame 
from pygame.locals import * 
import os 
import time 
from time import strftime 
#from pygame.locals import* 
#from matplotlib.dates import DateFormatter 
import RPi.GPIO as GPIO 
import datetime 

def run_cmd(cmd): 
     """Used to run Linux commands""" 
     p = Popen(cmd, shell=True, stdout=PIPE) 
     output = p.communicate()[0] 
     return output 

def displayText(text, size, line, color, clearScreen): 

    """Used to display text to the screen. displayText is only configured to display 
    two lines on the TFT. Only clear screen when writing the first line""" 
    if clearScreen: 
     screen.fill((0, 0, 0)) 

    font = pygame.font.Font(None, size) 
    text = font.render(text, 0, color) 
    textRotated = pygame.transform.rotate(text, -90) 
    textpos = textRotated.get_rect() 
    textpos.centery = 80 
    if line == 1: 
     textpos.centerx = 90 
     screen.blit(textRotated,textpos) 
    elif line == 2: 
     textpos.centerx = 40 
     screen.blit(textRotated,textpos) 


def displayTime(): 
    """Used to display date and time on the TFT""" 
    screen.fill((0, 0, 0)) 
    font = pygame.font.Font(None, 50) 
    now=time.localtime() 

    for setting in [("%H:%M:%S",60),("%d %b",10)] : 
     timeformat,dim=setting 
     currentTimeLine = strftime(timeformat, now) 
     text = font.render(currentTimeLine, 0, (0,250,150)) 
     Surf = pygame.transform.rotate(text, -90) 
     screen.blit(Surf,(dim,20)) 

def main(): 
    global ax,fig,screen 
    global firstTime,lines 
    global TwentyFourHours,TwelveHours,OneWeek 
    global dataFile 

    size = width, height = 128, 160 
    TFTxSize = 2.28 
    TFTySize = 1.63 
    TwentyFourHours = 288 
    TwelveHours = 144 
    OneWeek = 2016 
    firstTime = True  #Used to work out if a function has already been run 
    whatToDisplay = 1  #What do display on screen 
    rotate = 0   #Used when automatically rotating the display. 
    startTime = time.time() #Used to work out how much time has passed when rotating. 

    #Set the framebuffer device to be the TFT 
    os.environ["SDL_FBDEV"] = "/dev/fb1" 

    #Setup pygame display 
    pygame.init() 
    pygame.mouse.set_visible(0) 
    screen = pygame.display.set_mode(size) 

    try: 
     while True: 
       time.sleep(.5) 
       firstTime = True  #If button pressed, set this to True 
       if whatToDisplay == 1: #Display time 
        displayTime() 
       elif whatToDisplay == 2: #Display last temperature recorded. 
        displayText('Current Temp', True) 
       elif whatToDisplay == 3: #Rotate display 
        elapsedTime = time.time() - startTime 
     #Write to TFT 
       pygame.display.flip() 

    except KeyboardInterrupt: 
     pygame.quit() 
     sys.exit() 

if __name__ == '__main__': 
    main() 

按下^ C不会关闭屏幕显示并且不会返回到控制台。 我必须重新启动pi，这对测试内容来说非常痛苦。 显示效果很好，当我可以正确关闭时，我会解决任何其他问题。

Answer 1

KeyboardInterrupt如果密钥由pygame处理，将不会启动。以下介绍如何检测CTRL + C事件。

while True: 
    for event in pygame.event.get(): 
     if (event.type == pygame.KEYUP and event.key == pygame.K_c and 
      event.mod & pygame.KMOD_CTRL): 
      pygame.quit() 
      sys.exit() 

:)