python处理keyPressed（）函数不工作

Question

def keyPressed():
    global fill_r
    global fill_v
    global rect_x
    if key == 'W' or key == 'w':
        fill_rect() 
        print("TEST")

这是我的代码中不起作用的一部分我是在使用python处理3的过程中这样做的

Answer 1

如果您想从上一个问题（如何修复加载条在结束前停止）中启动进度条，当按下w时，您必须添加一个状态(start_progress)。设置按键时的状态(start_progress=true)，并根据状态运行fill_rect:

from time import sleep

def fill_rect():
    global fill_r, fill_v, rect_x, speed_fill

    fill(fill_r, fill_v, 0)
    rect(width/2 - 100, height/2 - 12.5, rect_x, 25)

    if rect_x <= 200:
        rect_x = min(200, rect_x + speed_fill)
        speed_fill += 1
        fill_r += 5
        fill_v -= 2

def setup():
    global fill_r, fill_v, rect_x, speed_fill, start_progress
    fill_r, fill_v, rect_x, speed_fill = 25, 100, 0, 0
    start_progress = False
    size(500, 500)

def draw():
    background(0, 100, 255)
    fill(0)
    rect(width/2 - 100, height/2 - 12.5, 200, 25)

    if start_progress:
        fill_rect()

def keyPressed():
    global start_progress
    if key == 'W' or key == 'w':
        start_progress = True
        print("TEST")