代码里面enc值就是我上面说的i值，上面讲的b函数就是里面的encryption函数。
这样我们就可以显示上述运行同样的结果了。
这里小编只需得到一首歌曲的id即可，为后续做准备。
可以发现歌曲下载网址就是上面小编标的那个，它是post请求，并且请求参数也是加了密的，同样我们也需要得到它的原始请求参数值，操作和上述一样，这里小编就不一一讲述了，反正这个比较麻烦，小编花费很多时间，终于得到了它的初始请求参数为:
{"ids": "[歌曲id]".format(song_id), "level": "standard", "encodeType": "aac", "csrf_token": ""}
加密算法和上述一样的。 4.实现爬取代码 from Crypto.Cipher import AES from base64 import b64encode import requests import random import json import os def to_16(data): len1=16-len(data)%16 data+=chr(len1)*len1 return data def encryption(data,key): iv = \'0102030405060708\' aes = AES.new(key=key.encode(\'utf-8\'),IV=iv.encode(\'utf-8\'),mode=AES.MODE_CBC) data1 = to_16(data) bs=aes.encrypt(data1.encode(\'utf-8\')) return str(b64encode(bs),\'utf-8\') def get_enc(data): param4 = \'0CoJUm6Qyw8W8jud\' #enc=\'NA5SxhePf6dxIxX7\' #enc=\'GLvjERPvSFUw6EVQ\' enc=\'g4PXsCuqYE6icH3R\' first=encryption(data,param4) return encryption(first,enc) if __name__ == \'__main__\': # 得到搜索歌曲的列表信息 song=input(\'请输入歌曲名称:\') param1 = {"hlpretag": "<span class=\"s-fc7\">", "hlposttag": "</span>", "s": song, "type": "1", "offset": "0", "total": "true", "limit": "30", "csrf_token": ""} data=json.dumps(param1) # 对请求参数的加密 params=get_enc(data) data={ \'params\': params, #\'encSecKey\': \'c2bcf219b2d727ff351d8fc4e5cbb86b09c32055345c098b8a8faf9c1c8b2bc506623ffc2b45db3e72cf040c750848f4408147c881a494c99dc8596415ce27d7b8ff7128e41a2b987bc9b78b3f4d4e0f0f5925b9ae24d99d1923a0d0c5cae5a3ebaf83c1097cfc3fd876f77582f38b79bbd03718cc562c15877abe9628e89ff1\' #\'encSecKey\':\'cd99d0f0c4210c9dfbd2fafec8640dae914f5d359e593338f699d98c0643dcc385a3889c89c98b3dcbe8f389aa91f47608ec236cd204adbd0236aae23125776c294f28d1753b685710e0173349e71715153e76c93a100ad682eab00033d3ebf3b5001a0046994800332cfc43445e59f28f5e874cb1dc04482d57da9cc67f6e8e\' \'encSecKey\':\'bb20ee9409e57057e4d1b55e4d77c94bff4d8cbf181c467bbd3fa156e3419665c6c1e643621d5d82c128251fb85f0cb34d4f08c88407b4148924ffa818f59a64b3814784e7e3837bad4f6f9690cb2cf721d9ea1af12c16a32a9df00be710b70ee8ed32036cc6a465b28ef43f4382cbcb4595b3121be75ecba9171876b611b8fc\' } url=\'https://music.163.com/weapi/cloudsearch/get/web?csrf_token=\' headerList=[ # user-agent列表，用于构造随机取值 "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko", "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3314.0 Safari/537.36 SE 2.X MetaSr 1.0", "Mozilla/5.0 (Windows; U; Windows NT 6.1; ) AppleWebKit/534.12 (KHTML, like Gecko) Maxthon/3.0 Safari/534.12", "Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1", "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0", \'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3861.400 QQBrowser/10.7.4313.400\' ] value=random.choice(headerList) headers={\'user-agent\':value} response=requests.post(url=url,data=data,headers=headers) dict1=json.loads(response.text) lists=dict1[\'result\'][\'songs\'] for i in range(len(lists)): print(\'[{}]-{}-->{}\'.format(i+1,lists[i][\'name\'],lists[i][\'ar\'][0][\'name\'])) id=int(input(\'请输入想下载的歌曲序号:(从1开始)\')) song_id=lists[id-1][\'id\'] song_name=lists[id-1][\'name\']+"_"+lists[id-1][\'ar\'][0][\'name\'] # 歌曲名称 # 下面代码为下载歌曲的代码 url2=\'https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=\' param2= {"ids": "[{}]".format(song_id), "level": "standard", "encodeType": "aac", "csrf_token": ""} # post请求的参数 data2=json.dumps(param2) params=get_enc(data2) data[\'params\']=params headers[\'user-agent\']=random.choice(headerList) response2=requests.post(url=url2,data=data,headers=headers) dict2=json.loads(response2.text) downloadUrl=dict2[\'data\'][0][\'url\'] downloadDir=\'./网易云音乐\' try: # 自动创建文件夹 os.mkdir(downloadDir) except Exception as e: print(e) # 下载歌曲代码 response3=requests.get(url=downloadUrl,headers=headers) # 以二进制的形式写入到文件中 with open(file=\'{}/{}.mp3\'.format(downloadDir,song_name),mode=\'wb\') as f: f.write(response3.content)