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()
@@ -19,6 +20,9 @@ down = pygame.image.load('down.png')
 x = 240
 y = 120
 position = [(180,90),(180,120),(210,120),(x,y)]
+apple_x = 360
+apple_y = 300
+
 setheading = 'right'
 snake_head = right
 while True:
@@ -47,6 +51,11 @@ while True:
         y += 30
     else:
         y -= 30
+
+    if apple_x == x and apple_y == y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0,480)
+
     # 将背景图画上去
     position.append((x,y))
     position.pop(0)
@@ -57,7 +66,7 @@ while True:
     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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