auto save

snake.py

@@ -23,7 +23,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+apple_x=360
+apple_y=300
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -52,12 +53,12 @@ while True:
         y -= 30
     else:
         y += 30
-    pos.pop
-    if food_x==x and food_y==y:
-        food_x=30*randon.randing(0,21)
-        food_y=30*randon.randing(0,15)
     position.append((x, y))
-    position.pop(0)
+    if apple_x==x and apple_y==y:
+        apple_x=30*random.randint(0,21)
+        apple_y=30*random.randint(0,15)
+    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
@@ -67,8 +68,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
-    
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