auto save

snake.py

@@ -19,9 +19,12 @@ down = pygame.image.load('down.png')        # 头 朝下
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x = 360
+apple_y = 300
 
 setheading = "right"
 snake_head = right
+score = 0
 
 while True:
     for event in pygame.event.get():
@@ -52,8 +55,17 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+    if x ==apple_x and y == apple_y:
+        num1= random.randint(1,22)
+        num2= random.randint(1,16)
+        apple_x = 30*num1-30
+        apple_y = 30*num2-30
+    else:
+
+        position.pop(0)
     # 将背景图画上去
+    if x < 0 or x > 630 or y < 0 or y > 450:
+        exit()
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
@@ -64,5 +76,4 @@ while True:
     # 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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+    
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