save project

my_game.py

@@ -26,8 +26,12 @@ obstacle = random.choice([bush, stone, cacti])
 rect = obstacle.get_rect()
 rect.x = 1000
 rect.y = 500 - rect.height
+xx=0
 
-while True:
+while True: 
+    xx-=8
+    if xx<=-1000:
+        xx=0
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
@@ -59,7 +63,7 @@ while True:
             index = 0
     # 将背景图画上去
     screen.blit(background, (0, 0))     # 远处背景
-    screen.blit(road, (0, 500))     # 路
+    screen.blit(road, (xx, 500))     # 路
     screen.blit(wukong, (150, y))     # 悟空
 
     if rect.x <= 0-rect.width:      # 障碍物消失