正则表达式替换问题

Question

string SubjectString="： </span> <select size=\"1\" name=\"navbar\" onchange=\"fnGo(this.options.value);\">\r\n                                                                                                                                  <option value='#'>请选择</option><option value='/pages/200508040938_96088.htm'>[ATi的希冀：X550 = 9550的接班人] </option><option value='/pages/200508040944_44054.htm'>[X550将取代X300！！] </option><option value='/pages/200508040947_26064.htm'>[Radeon X550 vs GeForce 6200 Part1] </option><option value='/pages/200508040949_39743.htm'>[Radeon X550 vs GeForce 6200 Part2]  </option><option value='/pages/200508040950_47923.htm'>[ATi公版Radeon X550] </option><option value='/pages/200508040952_71999.htm'>[DDR2回归助力Radeon X550] </option><option value='/pages/200508040957_82181.htm'>[昂达 雷霆X550/256MB 终极版] </option><option value='/pages/200508040959_46239.htm'>[迪兰恒进 镭姬杀手X550] </option><option value='/pages/200508051309_79287.htm'>[技嘉 RX550 256MB 极限版] </option><option value='/pages/200508041002_20488.htm'>[捷波 镭霸PCX550 游戏小子] </option><option value='/pages/200508041007_55640.htm'>[铭瑄 狂镭X550超频版] </option><option value='/pages/200508041010_39607.htm'>[七彩虹 镭风X550-GD2 CT冰封骑士３] </option><option value='/pages/200508041012_28929.htm'>[双敏 火旋风PCX5528XT] </option><option value='/pages/200508041015_84966.htm'>[盈通镭龙 RX550-D2] </option><option value='/pages/200508041026_24972.htm'>[华硕 EAX550GE/TD/256M/A] </option><option value='/pages/200508041027_59427.htm'>[蓝宝石 Radeon X550 TSOP] </option><option value='/pages/200508041017_74672.htm'>[接力Radeon 9550，X550百花齐放] </option>\r\n                                                                                                                        \r\n                                </select> <br>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<br>\r\n                                                                                                                        <b>[ATi的希冀：X550 = 9550的接班人]</b><BR><BR>在AGP平台，Radeon 9550无疑是最受欢迎的产品。不过随着PCI-E平台的普及";
ResultString = Regex.Replace(SubjectString, "<select\\s+(.+?)</select> <br>", "\"\"",
RegexOptions.IgnoreCase);======================================================================
这是本意是将<select .......</select>中的部分删除
此正则测试通过，在regexbuddy 中运行也通过，能正确替换
为什么用到c#程序中就无法替换呢？

Answer 1

你的意思是删除<select></select>之间所有的东西？？

Answer 2

tryRegex.Replace(SubjectString, "<select\\s+(.+?)</select>\\s*<br>", "\"\"",
RegexOptions.IgnoreCase|RegexOptions.Singleline);
orRegex.Replace(SubjectString, "<select([\\s\\S]+?)</select>\\s*<br>", "\"\"",
RegexOptions.IgnoreCase);

Answer 3

用了Regex.Replace(SubjectString, "<select([\\s\\S]+?)</select>\\s*<br>", "\"\"",
RegexOptions.IgnoreCase);
通过，
但是 我的正则在regexbuddy 中测试也能正确匹配的啊，为什么在程序中就不行了呢？