save project

my_game.py

@@ -33,13 +33,13 @@ while True:
                 if event.key == locals.K_SPACE:
                 if event.key == locals.K_SPACE:
                     S = "up"
                     S = "up"
     if S == "up":  #判断起跳距离
     if S == "up":  #判断起跳距离
-        if t > 0:
+        if t > 0:   #将上升时速度逐渐变慢
             y -= t
             y -= t
             t -= 2
             t -= 2
         else:
         else:
             S = "down"
             S = "down"
     if S == "down":  #判断下降距离
     if S == "down":  #判断下降距离
-        if t <= 30:
+        if t <= 30:  #将下降时速度逐渐变快
             y += t
             y += t
             t += 2 
             t += 2 
         else:
         else: