python处理keyPressed（）函数不起作用

Question

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

这是我的代码的一部分，将无法正常工作我在用python处理3中做到了

Answer 1

如果要从上一个问题（How to fix loading bar stopping before the end）开始进度条，请按w，然后必须添加状态（start_progress）。按下键时设置状态（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")