save project

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
 
 
@@ -21,6 +21,17 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        if event.iftype == locals.KEYDOWN:
+            if event.type == locals.K_RIGHT and setheading !='left':
+                setheading = 'right'
+            if event.type == locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+            if event.type == locals.K_UP and setheading != 'down':
+                setheading = 'up'
+            if event.type == locals.K_DOWN and setheading != 'up':
+                setheading == 'down'
+        if 
+
     # 将背景图画上去
     # 将背景图画上去
     x += 30
     x += 30
     body2.append((x, y))
     body2.append((x, y))