C# 通过正则组别名取不到值,求解......................................................

Question

C#正则C#正则表达式别名取值

Answer 1

晕,突然可以取值了.算了，顺便分享C# 正则匹配url吧
Regex regScript = new Regex(@"(?im)(?<URL>(?:http|https|ftp|mms|)?://(?<TopUrl>(?:[\w-]+\.)+[\w-]+)(?<FilePath>/[\w- /?%&#=]*[/])?(?<FileName>[\w- /?%&#=]*[.a-zA-Z0-9]*)?)");

Answer 2

htmlstr 是网页源码
我打算做个网页下载器

Answer 3

问个C#的问题
switch (_Model_Url._FileName.Split('.')[_Model_Url._FileName.Split('.').Length - 1].ToLower())
                    {
                        //文本格式
                        case "txt":
                            break;
                        case "js":
                            break;
                        case "css":
                            break;
                        case "xml":
                            break;
                        //图片格式
                        case "png":
                            break;
                        case "ico":
                            break;
                        //媒体格式
                        case "wsx":
                            break;
                        case "mp3":
                            break;
                        case "swf":
                            break;
                    }
其中case 能不能使用归类模式,比如 case ("js"||"css"||"txt"||"xml") :break; 
有没有类似的处理方式  求解

Answer 4

                        case "txt":
                        case "js":
                        case "css":
                        case "xml":
                            break;