How can i pass parameters to functions via cmd windows?

Thanks for your helps.I will check it right now.

Hope you have a good day!

If you're wanting to pass command line arguments to the current program, you need to use the version of Main which takes a string array as an argument. Something like this:

class Program
{
   fun1(string str1,string str2)
   {

   }

   fun2(int a,string str)
   {

   }
  
   static void Main(string[] args)
   {
       if (args.Length ! = 3)
       {
          Console.WriteLine("Program failure, there must be exactly three arguments");
          return;
       }
       Program p = new Program();
       string fun = args[0];
       if (fun == "fun1")
       {
           p.fun1(args[1], args[2]);
       }
       else if (fun == "fun2")
       {
           p.fun2(int.Parse(args[1]), args[2]);
       }
       else
       {
          Console.WriteLine("Program failure, method must be called fun1 or fun2");

       }

   }
}

If exam.exe is an external program which is expecting command line arguments in this form, then use:

System.Diagnostics.Process.Start("exam.exe", "fun1 abc cde");

System.Diagnostics.Process.Start("exam.exe", "fun2 100 abc");