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()
 
@@ -18,6 +18,8 @@ up = pygame.image.load('up.png')
 down = pygame.image.load("down.png")
 x,y=240,120
 position=[(180, 90),(180, 120),(210, 120),(x,y)]
+apple_x=360
+apple_y=300
 setheading="right"
 snake_head=right
 while True:
@@ -46,12 +48,11 @@ elif setheading=="up":
     y-=30
 else:
     y+=30
-
-            
-
-    x+=30
-    position.append((x,y))
-    position.pop(0)
+position.append((x,y))
+if x==apple_x and y==apple_y:
+    apple_x=random.randint(0,660)
+    apple_y=random.randint(0,480)
+position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -63,7 +64,7 @@ else:
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 90))
     # 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()
     FPSCLOCKF.tick(3)