save project

snake.py

 import pygame
 from pygame import locals
-x = [180,180,210,240]
-y = [90,120,120,120]
+xy = []
 FPS = pygame.time.Clock()
 
 # 初始化pygame，为使用硬件做准备
@@ -25,20 +24,13 @@ while True:
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x[3],y[3]))
+    screen.blit(right, xy[3])
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (x[2],y[2]))
-    screen.blit(body, (x[1],y[1]))
-    screen.blit(body, (x[0],y[0]))
+    screen.blit(body, xy[2])
+    screen.blit(body, xy[1])
+    screen.blit(body, xy[0])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    for i in range(len(x)):
-        if y[i] == y[3]:
-            x[i] = x[i] + 30
-        else:
-            if y[i] > y[3]:
-                y[i] = y[i] -30
-            else:
-                y[i] = y[i] + 30
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+            
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