save project

my_game.py

@@ -15,6 +15,7 @@ hero = [pygame.image.load('hero1.png'),pygame.image.load('hero2.png'),pygame.ima
 i = 0 
 jumpstate="running"
 y=400
+t=30
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -22,26 +23,31 @@ while True:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_SPACE:
+                if jumpstate=="running":
                     jumpstate = "up"
     if jumpstate=="up":
-        if y>150:    
-            y=y-5
+        if t>0:    
+            y-=t
+            t-=2
         else:
             jumpstate="down"
     if jumpstate=="down":
-        if y<400:    
-            y=y+5
+        if t<=30:    
+            y+=t
+            t+=2
         else:
             jumpstate="running"
-        
+            t=30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
 
     screen.blit(hero[i], (150, y))
+    if jumpstate=="running":
         i+=1
         if i >4:
             i=0
+
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)