运行后直接输入想找的歌名，选择搜索结果下载文件到本地桌面。

运行前需要安装相关库。
只支持下载128kbps的MP3文件
如果出现无法下载，可以尝试更新new_headers
供爬虫爱好者学习使用

"""
Version: Python3.7
Author: ZM
Time: 2020/3/22
"""
import re
import json
import time
import requests
from fake_useragent import UserAgent

ua = UserAgent()
def get_song(song_name):
    global download_url
    search_url = "https://songsearch.kugou.com/song_search_v2?callback=jQuery112408397851079788055_1557731496992&page" \
                 "=1&pagesize=30&userid=-1&clientver=&platform=WebFilter&tag=em&filter=2&iscorrection=1&privilege_fil" \
                 "ter=0&_=1557731496997&keyword={}".format(song_name)

    headers = {
        "Referer": "https://www.kugou.com/yy/html/search.html",
        "UserAgent":ua.random
    }
    res = requests.get(search_url, headers=headers)


    start = re.search("jQuery\d+_\d+\(?", res.text)
    js = json.loads(res.text.strip().lstrip(start.group()).rstrip(")"))  # 注意：末尾有一个换行需要去掉
    song_list = js['data']['lists']

    for i in range(15):
        print(str(i + 1) + ">>>" + str(song_list[i]['FileName']).replace('<em>', '').replace('</em>', ''))


    num = int(input("\n请输入您想要下载的歌曲序号："))
    print("请稍等，下载歌曲中...")
    time.sleep(1)

    file_hash = song_list[num-1]['FileHash']
    download_songname = str(song_list[num-1]['FileName']).replace('<em>', '').replace('</em>', '')
    print(download_songname)

    new_headers = {"User-Agent":ua.random,"accept":"*/*","accept-encoding": "gzip, deflate, br","accept-language": "zh-CN,zh;q=0.9,en;q=0.8,zh-TW;q=0.7","cookie": "kg_mid=09ef63699c5de255b926c7fc51d9f288; Hm_lvt_aedee6983d4cfc62f509129360d6bb3d=1583933945,1585059353; kg_dfid=3LF0gs3wKisZ0c8Oqj1hdALj; kg_dfid_collect=d41d8cd98f00b204e9800998ecf8427e; Hm_lpvt_aedee6983d4cfc62f509129360d6bb3d=1585060087; kg_mid_temp=09ef63699c5de255b926c7fc51d9f288",'origin': 'http://www.kugou.com/', 'referer': 'http://www.kugou.com/'}

    hash_url = 'https://wwwapi.kugou.com/yy/index.php?r=play/getdata&callback=jQuery191015071006070477466_1585061464206&hash='+file_hash
    hash_content = requests.get(hash_url,headers=new_headers).text
    play_url =re.findall('"play_url":"(.*?)"',hash_content)


    if play_url ==['']:
        print('歌曲无法下载')
        next = input('是否继续下载其他歌曲(y/n):>>')
        if next.lower() =='y':
            next_songname = input("请输入您想要搜索的歌曲：")
            get_song(next_songname)
        else:
            print('输入错误')

    else:
        play_url =''.join(play_url)
        download_url =play_url.replace('\\','')

    try:
        with open(download_songname+'.mp3','wb')as fp:
            fp.write(requests.get(download_url).content)
            print('歌曲《{}》下载成功'.format(download_songname))
    except Exception as e:
        print(e)

while True:
    if __name__ == '__main__':
        get_song(input("请输入您想要搜索的歌曲："))

    choice = input('是否继续下载其他歌曲(y/n):>>')
    if choice.lower() =='y':
        continue
    else:
        break