Demonstrates parameters and return values，,def display(

Demonstrates parameters and return values，,def display(

def display(message):    print messagedef give_me_five():    five = 5    return fivedef ask_yes_no(question):    '''Ask a yes or no question.'''    response = None    while response not in ('y', 'n'):        response = raw_input(question).lower()    return response# maindisplay('Here's a message for you.\n')number = give_me_five()print 'Here's what I got from give_me_five():', numberanswer = ask_yes_no('\nPlease enter 'y' or 'n': ')print 'Thanks for entering:', answerraw_input('\n\nPress the enter key to exit.')