save project

snake.py

@@ -18,6 +18,7 @@ FPSCLock=pygame.time.Clock()
 setheading = "right"
 
 while True:
+   
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
@@ -30,6 +31,20 @@ while True:
                 setheading = "up"
             if event.key == locals.K_DOWN and setheading != "left": 
                 setheading = "down"
+    if setheading == "right":
+       x+=30
+    elif setheading == "left": 
+       x-=30
+    elif setheading == "up": 
+       y+=30
+    else:
+       y-=30
+
+
+
+
+
+      
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -46,7 +61,7 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    x=x+30
+   
     FPSCLock.tick(3)