save project

snake.py

@@ -18,9 +18,18 @@ x,y = 210,120
 position=[(180,120),(180,90),(210,120),(x,y)]
 while True:
     for event in pygame.event.get():
-        if event.type == locals.QUIT:
+        if event.type == locals.KEYDOWN:
             # 接收到退出事件后退出程序
             exit()
+        if event.type == locals.QUIT:
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = "right"
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = "left"
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = "down"
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = "up"
     x+=30
     s=(x,y)
     position.append(s)