为什么在不释放密钥的情况下获得Pygame KEYUP事件? [英] Why do I get Pygame KEYUP event without releasing the key?

问题描述

首先，我是一个完整的初学者，所以我没有任何经验，但是我搜索了过去两天所有可能的地方以找到解决方法，但找不到它.

Firstly, I'm a complete beginner, so I do not have any experience, I have however searched all the possible places these last 2 days for a resolve, and could not find it.

我在带有Raspbian的Raspberry PI 3上使用它.

I'm using this on a Raspberry PI 3 with Raspbian.

我正在尝试在Python 3.6中构建一个简单的代码，该代码将执行以下操作: 按下键盘键时:

I'm trying to build a simple code in Python 3.6 that will do the following: When pressing a keyboard key:

1.如果按下该键，则应打印"press"，而无需重复.

1.it should print 'press' if the key was pressed, without repeating.

(如果按住该键，则只应打印按"一次并停止).

2.如果已释放密钥而不重复，则应打印"release".

2.it should print 'release' if the key was released without repeating.

基本上我想一次打印密钥的最后状态，

Basically I want to print once the last state of the key,

我遇到的问题是:

在按住键的同时，即使没有实际释放键，我也要连续获得按下/释放按下/释放按下/释放事件，而不是仅获得1次按下".

while holding down the key, I'm getting consecutive press/release press/release press/release events, even if no key was physically released, instead of getting only 1 'press'.

下面是我要使用的代码.

Below is the code that I'm trying to use.

#!/usr/bin/env python
import pygame
from pygame.locals import *
from time import sleep
import time

pygame.init()
screen = pygame.display.set_mode((800,800))

keys= [False]
last = None
pygame.key.set_repeat()

while True:
        if keys[0]==True and last != 'press': 
            print ('press')
            last = 'press'

        if keys[0]==False and last != 'release':
            print('release')
            last = 'release'

        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                pygame.quit()
                exit(0)

            if event.type == pygame.KEYDOWN:
                if event.key==K_d:
                    keys[0]=True                        

            if event.type == pygame.KEYUP:
                if event.key==K_d:
                    keys[0]=False

推荐答案

问题解决了，这是因为我使用的是VNC而不是直接连接到Raspberry Pi的键盘.

Problem solved, it was because I was using a VNC instead of using the keyboard directly connected to the Raspberry Pi.

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