diff --git a/my_game.py b/my_game.py
index 69d809d..4e555e3 100644
--- a/my_game.py
+++ b/my_game.py
@@ -18,21 +18,37 @@ hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
 i = 0 
-
+y = 400
+jumpState = "runing"
 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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_SPACE:
+                if jumpState == "runing":
+                    jumpState = "up"
+    if jumpState == "up":
+        if y > 150:
+            y-=5
+        else:
+            jumpState = "down"
+    if jumpState == "down":
+        if y < 400:
+            y+=5
+        else:
+            jumpState = "runing"
     wukong = hero[i]
-    i = i + 1
-    if i>4:
-        i = 0
+    if jumpState == "runing":
+        i = i + 1
+        if i>4:
+            i = 0
         
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
-    screen.blit(wukong, (150, 400))
+    screen.blit(wukong, (150, y))
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)
\ No newline at end of file