markdown链接转html a链接

public class HtmlParseHelper
    {
        /// 

        /// markdown 链接转 html a链接
        /// [link](/url)转为link
        /// 
        /// 
        /// 
        public static string MarkdownLinkToHtmlALink(string markdownStr)
        {
            string result = markdownStr;
            try
            {
                string pattern = @"\[(.+)\]\((\/.+)\)";
                string replacement = "$1";

                result = Regex.Replace(markdownStr, pattern, replacement);
            }
            catch (Exception e)
            {
                LogHelper.Error($"MarkdownLinkToHtmlALink异常:{markdownStr}", e);
            }

            return result;
        }
    }

[TestClass()]
    public class HtmlParseHelperTests
    {
        [TestMethod()]
        public void MarkdownLinkToHtmlALinkTest()
        {
            string inputStr= @"This is a [link0](/url0)
This is a [link1](/url1)
This is a [link2](/url2)
This is a link4
[查看可用选项3](/#/datasource-options?sourceName=Attendance.AttendanceMode3)";
            string resutl = HtmlParseHelper.MarkdownLinkToHtmlALink(inputStr);
        }
    }

参考：https://docs.microsoft.com/zh-cn/dotnet/standard/base-types/substitutions-in-regular-expressions#substituting-a-numbered-group