save project

my_game.py

@@ -20,6 +20,7 @@ hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero5.png')]
 index = 0 
 jumpState = "runing"
+t=30
 y = 400
 
 while True:
@@ -31,14 +32,16 @@ while True:
             if event.key == locals.K_SPACE:
                 jumpState = "up"
     if jumpState == "up":       # 起跳
-        if y > 150:
-            y -= 20
+        if t>0:
+            t-=2
+            y-=t
         else:
             jumpState = "down"
 
     if jumpState == "down":     # 起跳
-        if y < 400:
-            y += 20
+        if t<=30:
+            t+=2
+            y+=t
         else:
             jumpState = "runing"