diff --git a/ship.py b/ship.py
new file mode 100644
index 0000000..96dcb58
--- /dev/null
+++ b/ship.py
@@ -0,0 +1,55 @@
+# 创建飞船Ship类
+
+import pygame
+from pygame.sprite import Sprite
+
+
+class Ship(Sprite):
+    """
+        初始化飞船并设置其初始位置
+    """
+    def __init__(self, ai_settings, screen):
+        super().__init__()
+        self.screen = screen
+        self.ai_settings = ai_settings
+        
+        # 加载飞船图像并获取其外接矩形
+        self.image = pygame.image.load('images/ship.bmp')
+        self.rect = self.image.get_rect()     # 获取飞船图片外接矩形（即是让其可以像矩形一样被处理）
+        self.screen_rect = self.screen.get_rect()        # 获取屏幕图片外接矩形（即是让其可以像矩形一样被处理）
+        
+        # 将每搜新飞船放在屏幕底部中央
+        self.rect.centerx = self.screen_rect.centerx  # 将飞船的centerx与屏幕的centerx捆绑在一起
+        self.rect.bottom = self.screen_rect.bottom     # 将飞船的bottom与屏幕的bottom捆绑在一起
+
+        # 在飞船的属性center中存储小数值
+        self.center = float(self.rect.centerx)
+
+        # 飞船水平移动标志
+        self.moving_right = False
+        self.moving_left = False
+
+    def update(self):
+        """
+            根据移动标志调整飞船水平位置
+        """
+        # 飞船持续向右移动
+        if self.moving_right and self.rect.right < self.screen_rect.right:
+            self.center += self.ai_settings.ship_speed_factor
+
+        # 飞船持续向左移动
+        if self.moving_left and self.rect.left > 0:
+            self.center -= self.ai_settings.ship_speed_factor
+
+        # 根据self.center更新image_rect对象
+        self.rect.centerx = self.center
+        
+    def blitem(self):
+        """
+            在指定位置绘制飞船
+        """
+        self.screen.blit(self.image, self.rect)
+
+    def center_ship(self):
+        """让飞船在屏幕底部居中"""
+        self.ship_center = self.screen_rect.centerx