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()
@@ -11,7 +12,7 @@ FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')      # 头 朝右
-food = pygame.image.load('apple.png')       # 食物 苹果
+apple = pygame.image.load('apple.png')       # 食物 苹果
 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
@@ -23,6 +24,9 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 setheading = "right"
 snake_head = right
 
+apple_x = 360
+apple_y = 300
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -51,8 +55,14 @@ while True:
         y -= 30
     else:
         y += 30
+
     position.append((x, y))
+    
+    if x == apple_x and y == apple_y :
+        apple_x = randint(0,660)
+        apple_y = randint(0,480)
     position.pop(0)
+
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +72,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(apple, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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