diff --git a/my_game.py b/my_game.py
index e73161e..4370b1d 100644
--- a/my_game.py
+++ b/my_game.py
@@ -1,40 +1,61 @@
 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）
 pygame.display.set_caption("悟空酷跑")
-
+# 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'),
-       pygame.image.load('hero2.png'),
-       pygame.image.load('hero3.png'),
-       pygame.image.load('hero4.png'),
-       pygame.image.load('hero5.png')]
-
+        pygame.image.load('hero2.png'),
+        pygame.image.load('hero3.png'),
+        pygame.image.load('hero4.png'),
+        pygame.image.load('hero5.png')]
 index = 0 
+jumpState = "runing"
+y = 400
+t = 30
 
 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()
-    wukong = hero[index]  
-    index += 1
-    if index == 5:
-        index = 0
+        if event.type == locals.KEYDOWN:
+            if jumpState == "runing":
+                if event.key == locals.K_SPACE:
+                    jumpState = "up"
+    if jumpState == "up":    # 起跳
+        if t > 0:
+            y -= t
+            t -= 2
+        else:
+            jumpState = "down"  
+    if jumpState == "down":    # 降落
+        if t <= 30:
+            y += t
+            t += 2
+        else:
+            jumpState = "runing"
+            t = 30
 
+    wukong = hero[index]  
+    if jumpState == "runing":
+        index += 1
+        if index == 5:
+            index = 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
+    FPS.tick(30)