爬视频喽
1.获取链接地址 如下图 类似：https://v.qq.com/x/page/q0900ebm4qz.html
2.取值：取上图获取到的加粗的数据，然后替换下面链接中的加粗数据http://vv.video.qq.com/getinfo?vids=b31118kh32z&platform=101001&charge=0&otype=json&defn=shd
3.把第二部获取的链接用浏览器打开获取到如下数据(注意加粗的数据)
QZOutputJson={“dltype”:1,“em”:0,“exem”:0,“fl”:{“cnt”:2,“fi”:[{“id”:100701,“name”:“sd”,“lmt”:0,“sb”:1,“cname”:“标清;(270P)”,“br”:79,“profile”:2,“drm”:0,“type”:4,“video”:1,“audio”:1,“fs”:7224311,“super”:0,“hdr10enh”:0,“sname”:“标清”,“resolution”:“270P”,“recommend”:0,“vfps”:15,“sl”:0},{“id”:2,“name”:“hd”,“lmt”:0,“sb”:1,“cname”:“高清;(480P)”,“br”:104,“profile”:1,“drm”:0,“type”:1,“video”:1,“audio”:1,“fs”:25865125,“super”:0,“hdr10enh”:0,“sname”:“高清”,“resolution”:“480P”,“recommend”:0,“vfps”:25,“sl”:1}]},“hs”:0,“ls”:0,“ip”:“221.229.134.127”,“preview”:240,“s”:“o”,“sfl”:{“cnt”:0},“tstid”:12,“testbucket”:“11.186.250.244”,“tm”:1621594488,“vl”:{“cnt”:1,“vi”:[{“enc”:“0”,“drm”:0,“sig”:“e7f6e50b130bf8f5e1dc74bf87fa9a4907d73a08”,“ch”:0,“lnk”:“q0900ebm4qz”,“ct”:21600,"fvkey":“FC8B2841CD7C31D8F095910F7077928CC51DD0E3E4C17E693EA81CEE14935C70198ABF6E942BE971BEF4DA6D0B22DEA7A992CE314685B316EDF094B1D67B8361C2B459C11EA3AE0DA345A175F50B8000DC1153F2CBBEF40DE95CC11F4F0BB150589DEF2E4EF6005E0E6891FEA7340D0F20F67CB153929222”,“st”:2,“pl”:null,“logo”:1,“cl”:{“fc”:0,“keyid”:“q0900ebm4qz.2”},“ul”:{“ui”:[{"url":“http://ugcdx.qq.com/”,“vt”:179,“dtc”:0,“dt”:2},{“url”:“http://vhot2.qqvideo.tc.qq.com/uwMROfz2r5zCIaQXGdGnC2dfDmavB6NbsWKJAiRTQBPbT70a/”,“vt”:200,“dtc”:0,“dt”:2},{“url”:“http://video.dispatch.tc.qq.com/uwMROfz2r5zCIaQXGdGnCGdfDmbJ4hvYU_rTNgSjExZ0O2hc/”,“vt”:0,“dtc”:0,“dt”:2}]},“wl”:{“wi”:[]},“freeul”:0,“td”:“240.26”,“type”:3,“vid”:“q0900ebm4qz”,“videotype”:0,"fmd5":“c34ff34e7e793b9805fb400adfe50f0c”,"fn":“q0900ebm4qz.mp4”,“fps”:“25”,“fs”:25865125,“fst”:5,“vr”:0,“vst”:2,“vh”:486,“vw”:864,“wh”:1.7777778,“tie”:0,“hevc”:0,“iflag”:0,“uptime”:1563425992,“fvideo”:0,“cached”:1,“fvpint”:0,“swhdcp”:0,“sshot”:3,“mshot”:0,“dm”:“0”,“head”:0,“tail”:0,“mst”:8,“targetid”:“0”,“ti”:“方特游 01 芜湖方特4大园区介绍”,“dsb”:0,“br”:104,“share”:1,“level”:0,“sp”:0}]}};
4,拼接视频地址（上图加粗数据拼接）
url + ‘/’ + fn + ‘?sdtfrom=v1010&guid=’ + fmd5 + ‘&vkey=’ + fvkey,即可
实例：http://ugcdx.qq.com/q0900ebm4qz.mp4?sdtfrom=v1010&guid=c34ff34e7e793b9805fb400adfe50f0c&vkey=36577C404046F268FD1B29E1D0A027A47BA215EEBBA68C3BBE7858145950A5BD41324780E46D47CDA46C64CF41FA5D58BD01C8F24CD39F135454A5810F29E24161B3F3A03656B1280B9C6A9ED170A91C57B810B536DB0193328F74B581ECF208F0F7C068127FCEC4A021DDE815D0D306C6302240C4A48D40
