C#正则截取Url中的字符串

Question

Url中的字符串string  str1 = http://localhost:80/service.svc/Units
string  str2 = http://localhost:80/service.svc/Units(1)
string  str3 = http://localhost:80/service.svc/Units(1)/Location
string  str4 = http://localhost:80/service.svc/Units(1)?$expand=Location
string  str5 = http://localhost:80/service.svc/Units?$expand=Location一“/”开始到“空”或“（”或“？”结尾的字符。取出Url中的 Units 字符串。求正则写法。

Answer 1

string reg=@"/?(\w+)[(|?]*.*";

Answer 2

            string tempStr = File.ReadAllText(@"C:\Users\M\Desktop\Test.txt", Encoding.GetEncoding("GB2312"));
            string pattern = @"(?<=http://([^/(]*/)+)[^\s(?/]+(?=[(?\s])";
            foreach (Match m in Regex.Matches(tempStr, pattern))
            {
                string result = m.Value;//循环输出 Units
            }

Answer 3

感谢两位，我测试一下。其实下面的字符串只剩下这样了再截取也可以，前面都是都一样的。string str1 = /Units
string str2 = /Units(1)
string str3 = /Units(1)/Location
string str4 = /Units(1)?$expand=Location
string str5 = /Units?$expand=Location

Answer 4

可以说，将字符串简化一下，下面这样的字符串，应该使用什么正则获取字符串"Units"string str1 = "/Units"
string str2 = "/Units(1)"
string str3 = "/Units(1)/Location"
string str4 = "/Units(1)?$expand=Location"
string str5 = "/Units?$expand=Location"一“/”开始到“空”或“（”或“？”结尾的字符。

Answer 5

 List<string> list = new List<string>() {
                "/Units",
                "/Units(1)",
                "/Units(1)/Location",
                "/Units(1)?$expand=Location",
                 "/Units?$expand=Location"
            };
            string pattern = @"(?<=/)[^\s(?/]+(?=(?>(?([(?/]).+|$)))";            string[] array = list.Select(a=>Regex.Match(a,pattern).Value).ToArray();
            /*
             *  [0] "Units" string
            [1] "Units" string
            [2] "Units" string
            [3] "Units" string
            [4] "Units" string             */

Answer 6

多谢，Return_false我要截取的Url地址是一个，只是有五种情况。

Answer 7

svc/(\w+)
如果是这样的话则用