auto save

snake.py

@@ -12,6 +12,7 @@ food=pygame.image.load("apple.png")
 body=pygame.image.load("body.png")
 
 x,y=240,120
+positon=[(180,90),(180,120),(210,120),(x,y)]
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
 while True:
@@ -20,12 +21,14 @@ while True:
             exit()
 
     x+=30
-
+    positon.append((x,y))
+    positon.pop(0)
     screen.blit(background,(0,0))
-    screen.blit(right,(x,y))
-    screen.blit(body,(210,120))
-    screen.blit(body,(180,120))
-    screen.blit(body,(180,90))
+    screen.blit(right,positon[-1])
+    
+    for i in range(len(positon)-1):
+        screen.blit(body,positon[i])
+    
     screen.blit(food,(360,300))
     pygame.display.update()
-    FPSCLOCK.tick(15)
+    FPSCLOCK.tick(4)