save project

my_game.py

@@ -50,7 +50,8 @@ while True:
     
     
 
 
     # 将背景图画上去
     # 将背景图画上去
-    x+=1
+    if j1=='r':
+        x+=1
     x=x%5
     x=x%5
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(road, (0, 500))