传递列表

# 8-9
def show_magicians(magicians):
    """打印每个魔术师名字"""
    for magician in magicians:
        print(magician.title())

magicians = ['david stone', 'dan &dave', 'david copperfield']
show_magicians(magicians)

# 8-10
def show_magicians(magicians):
    """打印每个魔术师名字"""
    for magician in magicians:
        print(magician.title())

def make_great(magicians):
    """名字前加'the Great'"""
    length = len(magicians)
    for i in range(1, length+1):
        magicians[i-1] = 'the Great ' + magicians[i-1]

magicians = ['david stone', 'dan &dave', 'david copperfield']
show_magicians(magicians)
make_great(magicians)
show_magicians(magicians)

# 8-11
def show_magicians(magicians):
    """打印每个魔术师名字"""
    for magician in magicians:
        print(magician.title())

def make_great(magicians):
    """名字前加'the Great'"""
    length = len(magicians)
    for i in range(1, length+1):
        magicians[i-1] = 'the Great ' + magicians[i-1]
    return(magicians)

magicians = ['david stone', 'dan &dave', 'david copperfield']
show_magicians(magicians)
magicians_new = make_great(magicians[:])
show_magicians(magicians_new)
show_magicians(magicians)

David Stone
Dan &Dave
David Copperfield
David Stone
Dan &Dave
David Copperfield
The Great David Stone
The Great Dan &Dave
The Great David Copperfield
David Stone
Dan &Dave
David Copperfield
The Great David Stone
The Great Dan &Dave
The Great David Copperfield
David Stone
Dan &Dave
David Copperfield