Question

我正试图让名字从z-a下降。我正在尝试按反向字母顺序对列表进行排序，然后遍历整个列表以打印每个名人的姓名

def main():
   print('Celebrities  known by one name:')
   drake = ['Drake']
   BE = ['Beyonce']
   RI = ['Rihanna']
   BO = ['Bono']
   print('Drake','Beyonce','Rihanna', 'Bono')
   a = input('Enter another one name celebrity ')
   b = input('Enter another one name celebrity ')
   c = input('Enter another one name celebrity ')
   d = [a,b,c,drake,BE,RI,BO]
   f = reversed(d)
   print('Celebrities in Reverse Alpha Order')
   for d in f:
      print(d)
main()

到目前为止，我得到的是这个

['Bono']
['Rihanna']
['Beyonce']
['Drake']
Eminem
Adele
Pink

它假设看起来像

Celebrities  known by one name:
Drake Beyonce Rihanna Bono
Enter another one name celebrity Adele
Enter another one name celebrity Eminem
Enter another one name celebrity Pink
Celebrities in Reverse Alpha Order
Rihanna
Pink
Eminem
Drake
Bono
Beyonce
Adele

Answer 1

pythons内置排序函数有一个reverse参数，请参阅https://wiki.python.org/moin/HowTo/Sorting：

升序和降序

list.sort()和sorted()都接受带有的反向参数   布尔值。这用于标记降序排序。例如，到   以反向年龄顺序获取学生数据：

sorted(student_tuples, key=itemgetter(2), reverse=True) [('john', 'A', 15), ('jane', 'B', 12), ('dave', 'B', 10)]

sorted(student_objects, key=attrgetter('age'), reverse=True) [('john', 'A', 15), ('jane', 'B', 12), ('dave', 'B', 10)]

Python reverse alphabetical order中的

是代码示例

Answer 2

你可以试试这个：

l = ['Bono', 'Rihanna', 'Beyonce', 'Drake', 'eminem', 'adele', 'pink']
import string
final_list = sorted(l, key=lambda x:26 - string.ascii_lowercase.index(x[0].lower()))

输出：

['Rihanna', 'pink', 'eminem', 'Drake', 'Bono', 'Beyonce', 'adele']

Answer 3

您可以按doc

用户

<?php
$videoId = "EJOnwF8mgXc";
parse_str(file_get_contents("http://youtube.com/get_video_info?video_id=" . 
$videoId), $info);
$streams = $info['url_encoded_fmt_stream_map'];
$streams = explode(',', $streams);
foreach ($streams as $stream) {
    parse_str($stream, $data);
    if($data['itag'] == 18){
        echo $data['url'];
    }
}

sorted..reverse

Answer 4

我们可以使用：

names = sorted(names, key=str.lower,reverse=True)

完整示例：

def main():
    print('Celebrities  known by one name:')
    names = ['Drake','Beyonce','Rihanna','Bono']
    print(" ".join(names))
    for _ in range(3):
        names.append(input('Enter another one name celebrity '))
    names = sorted(names, key=str.lower,reverse=True)
    print('Celebrities in Reverse Alpha Order')
    for name in names:
        print(name)

main()

Answer 5

def names(name_list):

    name_list.sort()

    **name_list.reverse()**

    return(name_list)

如何反转字母顺序

5 个答案: