auto save

my_game.py

 import pygame
 from pygame import locals
 
+
 pygame.init()  # 初始化
 # 创建一个窗口
 screen = pygame.display.set_mode((1000, 600))
@@ -20,6 +21,9 @@ index = 0
 a="running"
 y=400
 t=30
+road_x=0
+bg_x=0
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -48,10 +52,17 @@ while True:
         index+=1 
         if index>len(hero)-1:
             index=0
-
+    
+   
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
+    bg_x-=50
+    if bg_x<-1000:
+        bg_x=0
+    screen.blit(background, (bg_x, 0))
+    road_x-=50
+    if road_x<-1000:
+        road_x=0
+    screen.blit(road, (road_x, 500))
     screen.blit(wukong, (150, y))
     
     # 刷新画面