save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -22,6 +22,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
+food_x=360
+food_y=300
 
 while True:
     for event in pygame.event.get():
@@ -54,6 +56,9 @@ while True:
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去
+    if x==food_x and y==food_y:
+        food_x=random.randint(1,22-1)*30
+        food_y=random.randint(1,16-1)*30
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
@@ -62,7 +67,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (food_x, food_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(7)
\ No newline at end of file