diff --git a/my_game.py b/my_game.py
index 53f76a3..5c11eb1 100644
--- a/my_game.py
+++ b/my_game.py
@@ -1,29 +1,357 @@
-import pygame
-from pygame import locals
-
-pygame.init()  # 初始化
-# 创建一个窗口
-screen = pygame.display.set_mode((1000, 600))
-FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
-# 载入图片
-background = pygame.image.load('bg.png')    # 背景
-road = pygame.image.load('road.png')      # 路
-stone = pygame.image.load('stone.png')      # 石头
-cacti = pygame.image.load('cacti.png')      # 仙人掌
-apple = pygame.image.load('bush.png')      # 灌木丛
-hero = pygame.image.load('hero1.png')
-index = 0 
-
-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()
-
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
-    screen.blit(hero, (150, 400))
-    # 刷新画面
-    pygame.display.update()
-    FPS.tick(60)
\ No newline at end of file
+import pygame
+from pygame import locals
+
+pygame.init()
+screen = pygame.display.set_mode((1000,600))
+FPS = pygame.time.Clock()
+
+background = pygame.image.load('bg.png')
+road = pygame.image.load('road.png')
+stone = pygame.image.load('stone.png')
+cacti = pygame.image.load('cacti.png')
+bush = pygame.image.load('bush.png')
+hero = [pygame.image.load('hero1.png'),
+        pygame.image.load('hero2.png'),
+        pygame.image.load('hero3.png'),
+        pygame.image.load('hero4.png'),
+        pygame.image.load('hero5.png')]
+j = 0
+while True:
+    for event in pygame.event.get():
+        if event.type==locals.QUIT:
+            exit()
+    j += 1
+    if j == 5:
+        j=1
+    screen.blit(background, (0,0))
+    screen.blit(road, (0,500))
+    screen.blit(hero[j], (150,400))
+
+    pygame.display.update()
+    FPS.tick(60)
+
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