我无法在 Pygame 中画线

问题描述

我制作了一个 Pygame 程序并试图画一条线。 但是每次我运行该程序时，它都会向我显示：

  File "/Documents/game.py",line 47
    pygame.draw.line(win,(255,255,255),(0,375),(500,375))
    ^
SyntaxError: invalid Syntax

我的代码：

#!/usr/bin/env python
import pygame
from pygame.locals import *
import sys
import threading
import random
import os
base_path = os.path.dirname(__file__)
bg_path = os.path.join(base_path,"imports/bg.png")
bgimg = pygame.image.load(bg_path)
cannon_path = os.path.join(base_path,"imports/cannon.png")
cannonimg = pygame.image.load(cannon_path)
bullet_path = os.path.join(base_path,"imports/bullet.png")
bulletimg = pygame.image.load(bullet_path)
target_path = os.path.join(base_path,"imports/target.png")
targetimg = pygame.image.load(target_path)
icon_path = os.path.join(base_path,"imports/icon.png")
iconimg = pygame.image.load(icon_path)
pygame.init()
win = pygame.display.set_mode((500,500))
pygame.display.set_caption("ShootIt!")
pygame.display.set_icon(iconimg)
while True:
    pygame.time.delay(25)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:           
            pygame.quit()
            sys.exit()     
    keys = pygame.key.get_pressed()
    bg = win.blit(bgimg,0))
    cannon = win.blit(cannonimg,(225,225)
    pygame.draw.line(win,375))
    pygame.display.update()

顺便说一下，我使用的是 Mac OS X、Python 3.8.3 和 Pygame 2.0.0。

解决方法

在显示错误的行之前的行中，缺少 )：

cannon = win.blit(cannonimg,(225,225)