diff --git a/my_game.py b/my_game.py
index 0334dc2..23bc561 100644
--- a/my_game.py
+++ b/my_game.py
@@ -19,12 +19,30 @@ pygame.image.load('hero4.png'),
 pygame.image.load('hero5.png')]
 index = 0 
 
+y=400
+jump="running"
+
 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:
+                jump = "up"
+    if jump == "up":
+        if y > 150:
+            y -= 5
+        else:
+            jump="down"
+
+    if jump == "down":
+        if y < 400:
+            y += 5
+        else:
+            jump="running"    
+
     wukong=hero[index]
     index += 1
     if index == 5:
@@ -33,7 +51,7 @@ while True:
     # 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