save project

snake.py

 import pygame
 from pygame import locals
+from random import randint
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -22,7 +23,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+apple_x=360
+apple_y=120
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -53,16 +55,20 @@ while True:
         y += 30
     position.append((x, y))
     position.pop(0)
+    if apple_x==x and apple_y==y:
+       apple_x=randint(0,22)*30
+       apple_y=randint(0,16)*30
+       
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
+    screen.blit(food,(apple_x,apple_y))
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(4)
\ No newline at end of file