save project

snake.py

@@ -13,18 +13,20 @@ right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x, y = 240, 120
+setheading = 'right'
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-        if event.key == locals.K_RIGHT and setheading != "left"
-            setheading = 'right
-        if event.key == locals.K_RIGHT and setheading != "right"
+    if event.type == locals.KEYDOWN:
+        if event.key == locals.K_RIGHT and setheading != "left":
+            setheading = 'right'
+        if event.key == locals.K_RIGHT and setheading != "right":
             setheading = 'left'
-        if event.key == locals.K_RIGHT and setheading != "down"
+        if event.key == locals.K_RIGHT and setheading != "down":
             setheading = 'up'
-        if event.key == locals.K_RIGHT and setheading != "up"
+        if event.key == locals.K_RIGHT and setheading != "up":
             setheading = 'down'
 
     if setheading == "right":