这么还原url编码呢
%3Cframeset%20border%3D%220%22%20frameborder%3D%220%22%20framespacing%3D%220%22%20rows%3D%22*%22%3E%0D%0A%20%20%3Cnoframes%3E%0D%0A%20%20%3C/noframes%3E%0D%0A%20%20%3Cframe%20frameborder%3D%22NO%22%20marginwidth%3D%220%22%20name%3D%22upperframe%22%20noresize%20src%3D%22play1.asp%3Ffilm1%3D5636%26film2%3D385%22%20scrolling%3D%22auto%22%3E%0D%0A%3C/frameset%3E

解决方案 »

  1.   

    <frameset border="0" frameborder="0" framespacing="0" rows="*"> <noframes> </noframes> <frame frameborder="NO" marginwidth="0" name="upperframe" noresize src="play1.asp?film1=5636&film2=385" scrolling="auto"> </frameset>
      

  2.   

    string a=Server.UrlDecode("%3Cframeset%20border%3D%220%22%20frameborder%3D%220%22%20framespacing%3D%220%22%20rows%3D%22*%22%3E%0D%0A%20%20%3Cnoframes%3E%0D%0A%20%20%3C/noframes%3E%0D%0A%20%20%3Cframe%20frameborder%3D%22NO%22%20marginwidth%3D%220%22%20name%3D%22upperframe%22%20noresize%20src%3D%22play1.asp%3Ffilm1%3D5636%26film2%3D385%22%20scrolling%3D%22auto%22%3E%0D%0A%3C/frameset%3E
    ")