编程实例生日歌（续） ·用参量增强函数的通用性 def singLucy(): def main(): singFred() singLucy ( 业 def sing(person): happy ( happy ( print "Happy birthday,dear",person +. happy() def main(): sing ("Fred") sing ("Lucy") sing ("Elmer")编程实例:生日歌(续) • 用参量增强函数的通用性 def singLucy(): …… def main(): singFred() singLucy()  def sing(person): happy() happy() print “Happy birthday, dear”, person + “.” happy() def main(): sing(“Fred”) sing(“Lucy”) sing(“Elmer”)