save project

snake.py

@@ -13,6 +13,7 @@ right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x,y = 240,120
+position = [(180,90),(180,120),(210,120),(x,y)]
 
 while True:
     for event in pygame.event.get():
@@ -21,14 +22,16 @@ while True:
             exit()
     x += 30
     # 将背景图画上去
+    position.append((x,y))
+    position.pop(0)
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x, y))
+    screen.blit(right, position[-1])
 
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(len(position)-1):
+      screen.blit(body,position[i])
+    
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面