JAVA encodeURIComponent C#版本

参考：https://stackoverflow.com/questions/86477/does-c-sharp-have-an-equivalent-to-javascripts-encodeuricomponent

System.Uri.EscapeDataString("Stack Overflow++");

System.Uri.EscapeUriString("example.com/Stack Overflow++?");

System.Net.WebUtility.UrlEncode("Stack Overflow++");