是不是匹配错了?(c#)
string   headerRegex   =    "(? <=manu_elems\ "> )[^ <]{1,} ";   
 string   textRegex   =    "(? <= '100 '   height= '50 '> )[^/ ";   
 以上是正则表达式   
  <div   class= "manu_elems ">  <div   class= "manu_elem ">  
 	 <div   class= "manu_photo ">  
 			 <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_1081_list_1.html ">  <img   src= 'http://img2.zol.com.cn/manu_photo/1081_.jpg '   alt= "纽曼   MP4播放器 "   width= '100 '   height= '50 '   border= "0 ">  </a>  </div>  
  <div   class= "manu_name ">  <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_1081_list_1.html "   title= "纽曼   MP4播放器 "   class= 'a_hei12 '> 纽曼 </a>  </div>  
  </div>  
  <div   class= "manu_elem ">  
 	 <div   class= "manu_photo ">  
 			 <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_1670_list_1.html ">  <img   src= 'http://img2.zol.com.cn/manu_photo/1670_.jpg '   alt= "歌美   MP4播放器 "   width= '100 '   height= '50 '   border= "0 ">  </a>  </div>  
  <div   class= "manu_name ">  <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_1670_list_1.html "   title= "歌美   MP4播放器 "   class= 'a_hei12 '> 歌美 </a>  </div>  
  </div>  
  <div   class= "manu_elem ">  
 	 <div   class= "manu_photo ">  
 			 <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_133_list_1.html ">  <img   src= 'http://img2.zol.com.cn/manu_photo/133_.jpg '   alt= "MSI(微星)   MP4播放器 "   width= '100 '   height= '50 '   border= "0 ">  </a>  </div>  
  <div   class= "manu_name ">  <a   href= "http://detail.zol.com.cn/mp4_player_index/subcate272_133_list_1.html "   title= "MSI(微星)   MP4播放器 "   class= 'a_hei12 '> MSI(微星) </a>  </div>  
  </div>
------解决方案--------------------string headerRegex =  "(? <=manu_elems\ "> )[^ <]{1,} ";   
 代码中只有 <div class= "manu_elems ">  <div class= "manu_elem "> 这里出现了manu_elems "> ,而其后紧跟着“ <”,你的正则要求匹配一个或多个非“ <”字符,当然匹配不到   
 string textRegex =  "(? <= '100 ' height= '50 '> )[^/ ";   
 这里“[”没有闭合,正则本身就是错的,说下你可得到什么结果吧,给你看下正则