python - Python/pygame 中的语法错误

Question

这个问题已经有答案了:

Nested arguments not compiling (1 个回答)

已关闭 9 年前。

我正在学习 python/pygame，并且正在做物理教程。不幸的是，我认为它是用旧版本的 python 制作的。我完全复制了视频中的代码，但是当我运行它时，它返回“无法运行脚本 - 语法错误 - 无效语法(physical.py，第 7 行)”。我确信这只是我错过的一些愚蠢而明显的事情，但任何答案都会对我大有帮助!

import os, sys, math, pygame, pygame.mixer
from pygame.locals import *

screen_size = screen_width, screen_height = 600, 400

class MyCircle:
    def __init__(self, (x, y), size, color = (255,255,255), width = 1):
        self.x = x
        self.y = y
        self.size = size
        self.color = color
        self.width = width

    def display(self):
        pygame.draw.circle(screen, self.color, (self.x, self.y), self.size, self.width)

screen = pygame.display.set_mode(screen_size)

my_circle = MyCircle((100,100), 10, red)
my_circle_2 = MyCircle((200,200), 30, blue)
my_circle_3 = MyCircle((300,150), 40, green, 4)
my_circle_4 = MyCircle((450,250), 120, black, 0)

fps_limit = 60
run_me = True
while run_me:
    clock.tick(fps_limit)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run_me = False

    my_circle.display()
    my_circle_2.display()
    my_circle_3.display()
    my_circle_4.display()

    pygame.display.flip()

pygame.quit()
sys.exit()

Answer 1

您可能使用的是 Python 3。元组参数解包已在 3.X 中删除，因此您必须更改此设置:

def __init__(self, (x, y), size, color = (255,255,255), width = 1):
    self.x = x
    self.y = y
    self.size = size
    self.color = color
    self.width = width

致:

def __init__(self, position, size, color = (255,255,255), width = 1):
    self.x, self.y = position
    self.size = size
    self.color = color
    self.width = width