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()
 a=pygame.time.Clock()
@@ -19,6 +19,8 @@ x,y=240,120
 position=[(210,120),(180,120),(180,90),(x,y)]
 setheading='right'
 snakehead=right
+apple_x=360
+apple_y=300
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -49,7 +51,9 @@ while True:
         y=y+30
     else:
         y=y-30
-
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
     position.append((x,y))
     position.pop(0)
     # 将背景图画上去
@@ -64,8 +68,8 @@ while True:
     #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()
-    a.tick(3)
+    a.tick(5)