更新 'ship.py'

ship.py

@@ -2,4 +2,10 @@ import pygame
 from pygame.sprite import Sprite
 
 
-class Ship(Sprite):
+class Ship(Sprite):
+
+    def __init__(self, ai_settings, screen):
+        """初始化飞船并设置其初始位置"""
+        super(Ship, self).__init__()
+        self.screen = screen
+        self.ai_settings = ai_setting