save project

snake.py

 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -17,7 +18,9 @@ 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
+x, y = 240, 120 
+app_x = 300
+app_y = 300
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
@@ -53,6 +56,9 @@ while True:
         y += 30
     position.append((x, y))
     position.pop(0)
+    if app_x==x and app_y==y:
+        app_x=random.randint(0,660)
+        app_y=random.randint(0,480)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +68,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (app_x, app_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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