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()
 
@@ -16,7 +16,7 @@ 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
-
+apple_x,apple_y=360,300
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
@@ -55,14 +55,19 @@ while True:
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
+    if x==apple_x and y==apple_y:
+        num1=random.randint(0,21)
+        num2=random.randint(0,15)
+        apple_x=num1*30
+        apple_y=num2*30
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
-    # 将贪吃蛇的身体画上去
+    # 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))
+    screen.blit(food, (apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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