save project

snake.py

 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=300
 setheading="right"
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
@@ -14,6 +17,9 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 
 fpsclock=pygame.time.Clock()
 while True:
@@ -41,6 +47,12 @@ while True:
     else:                   
         y+=30
     position.append((x,y))
+    if x==apple_x and y==apple_y:
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=(num1-1)*30
+        apple_y=(num2-1)*30
+    else:       
         position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -53,7 +65,7 @@ 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
     #x+=30
     fpsclock.tick(3)