Question

我有这样的网址：

HTTP％253A％252F％252Fo-o.preferred.bom03s03.v18.lscache5.c.youtube.com％252Fvideoplayback％253Fsparams％253Dalgorithm％25252Cburst％25252Ccp％25252Cfactor％25252Cid％25252Cip％25252Cipbits％25252Citag％25252Csource％25252Cexpire ％2526fexp％253D906717％25252C903945％25252C912602％25252C913601％25252C901601％2526algorithm％253Dthrottle因子％2526itag％253D34％2526ip％253D59.0.0.0％2526burst％253D40％2526sver％253D3％2526signature％253D904B7C772910BF285A6068BC1B5F5BB326A15A67.A0A3B85945C69A12B590D3D61695A3095039728D％2526source％253Dyoutube％2526expire ％253D1331814444％2526key％253Dyt1％2526ipbits％253D8％2526factor％253D1.25％2526cp％253DU0hSRlhMUl9JTkNOMl9QRlZFOkVoSFJkckpoeHMw％2526id％253D4749aebe2c52addd

如何从中获取实际网址。我尝试了HttpUtility.UrlDecode和其他各种实用方法。但似乎没有任何效果。任何人都可以告诉我什么是%253A和其他角色。它似乎是Unicode，但如何从中获取可以实际粘贴在浏览器中的URL？

Answer 1

它被加倍编码。

尝试

Console.Write(HttpUtility.UrlDecode(HttpUtility.UrlDecode(@"http%253A%252F%252Fo-o.preferred.bom03s03.v18.lscache5.c.youtube.com%252Fvideoplayback%253Fsparams%253Dalgorithm%25252Cburst%25252Ccp%25252Cfactor%25252Cid%25252Cip%25252Cipbits%25252Citag%25252Csource%25252Cexpire%2526fexp%253D906717%25252C903945%25252C912602%25252C913601%25252C901601%2526algorithm%253Dthrottle-factor%2526itag%253D34%2526ip%253D59.0.0.0%2526burst%253D40%2526sver%253D3%2526signature%253D904B7C772910BF285A6068BC1B5F5BB326A15A67.A0A3B85945C69A12B590D3D61695A3095039728D%2526source%253Dyoutube%2526expire%253D1331814444%2526key%253Dyt1%2526ipbits%253D8%2526factor%253D1.25%2526cp%253DU0hSRlhMUl9JTkNOMl9QRlZFOkVoSFJkckpoeHMw%2526id%253D4749aebe2c52addd")));

结果：

http://o-o.preferred.bom03s03.v18.lscache5.c.youtube.com/videoplayback?sparams=algorithm%2Cburst%2Ccp%2Cfactor%2Cid%2Cip
%2Cipbits%2Citag%2Csource%2Cexpire&fexp=906717%2C903945%2C912602%2C913601%2C901601&algorithm=throttle-factor&itag=34&ip=
59.0.0.0&burst=40&sver=3&signature=904B7C772910BF285A6068BC1B5F5BB326A15A67.A0A3B85945C69A12B590D3D61695A3095039728D&sou
rce=youtube&expire=1331814444&key=yt1&ipbits=8&factor=1.25&cp=U0hSRlhMUl9JTkNOMl9QRlZFOkVoSFJkckpoeHMw&id=4749aebe2c52ad
dd

如何从中获取可以在浏览器中粘贴的URL？

1 个答案: