save project

snake.py

@@ -3,7 +3,8 @@ from pygame import locals
 FPSCLOCK=pygame.time.Clock()
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-
+b="right"
+h=right
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 x,y=240,120
@@ -18,6 +19,20 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and b!="left":
+                b="right"
+                h=right
+            if event.key==locals.K_LEFT and b!="right":
+                b="left"
+                h=left
+            if event.key==locals.K_UP and b!="down":
+                b="up"
+                h=up
+            if event.key==locals.K_DOWN and b!="up":
+                b="down"
+                h=down
+
     x+=30
     a.append((x,y))
     a.pop(0)