save project

snake.py

 import pygame
+import random
 from pygame import locals
-
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -16,13 +16,12 @@ body = pygame.image.load('body.png')        # 身体
 left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
-
 x, y = 240, 120
+apple_x=360
+apple_y=300
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
-
 setheading = "right"
 snake_head = right
-
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -51,6 +50,9 @@ while True:
         y -= 30
     else:
         y += 30
+    if apple_x==x and apple_y==y:
+        apple_x=30*random.randint(1,22)
+        apple_y=30*random.randint(1,16)
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去
@@ -62,7 +64,7 @@ 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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