编程实例：生日歌 ·用函数减少重复代码 重复代码的坏处： def main(): 1.费时费力 print "Happy birthday to you!" print "Happy birthday to you!" 2.代码维护的 print "Happy birthday,dear Fred." 致性 print "Happy birthday to you!" V def happy(): print "Happy birthday to you!" def singFred(): happy ( happy ( print "Happy birthday,dear Fred." happy (编程实例:生日歌 • 用函数减少重复代码 def main(): print “Happy birthday to you!” print “Happy birthday to you!” print “Happy birthday, dear Fred.” print “Happy birthday to you!”  def happy(): print “Happy birthday to you!” def singFred(): happy() happy() print “Happy birthday, dear Fred.” happy() 重复代码的坏处: 1.费时费力 2.代码维护的 一致性