save project

snake.py

 import pygame
 from pygame import locals
-
+from random import *
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -22,7 +22,8 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
-
+appx = 120
+appy = 120
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -41,7 +42,7 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
+            
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -53,6 +54,9 @@ while True:
         y += 30
     position.append((x, y))
     position.pop(0)
+    if x == appx and y == appy:
+        appx = randint(0,21)*30
+        appy = randint(0,15)*30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +66,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (appx, appy))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(7)
\ No newline at end of file