save project

snake.py

@@ -16,6 +16,7 @@ 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():
@@ -24,18 +25,19 @@ while True:
             exit()
 
     x += 30
+    position.append((x , y)) 
+    position.pop(0)
 
     # 将背景图画上去
     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
     pygame.display.update()
 
-FPSCLOCK.tick(3)
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+FPSCLOCK.tick(0)
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