save project

snake.py

@@ -18,7 +18,7 @@ up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
 
 x, y = 240, 120
-apple_x,apple_y=(360,300)
+apple_x,apple_y=360,300
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
@@ -55,8 +55,8 @@ while True:
     if x==apple_x and y==apple_y:
         apple_x = 30*random.randint(1,22)
         apple_y = 30*random.randint(1,16)
-    position.append((x, y))
-    position.pop(0)
+   else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -66,6 +66,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
+
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()