C#進行Visio二次開發之Web端啟動繪圖客戶端並登錄(3)

3、Winform的繪圖客戶端程序能夠處理傳遞過來的命令行的參數，實現登錄啟動

首先介紹一個能夠處理命令行參數的公共類，他可以接受參數並把它放置到字典中

using System;
using System.Collections.Generic;
using System.Text;
namespace WHC.EDNMS.Commons
{
    public class CommandArgs
    {
        Dictionary<string, string> mArgPairs = new Dictionary<string,string>();
        public Dictionary<string, string> ArgPairs
        {
            get { return mArgPairs; }
        }
        public List<string> Params
        {
            get { return mParams; }
        }
        List<string> mParams = new List<string>();
    }
    public class CommandLine
    {
        /// <summary>
        /// Parses the passed command line arguments and returns the result
        /// in a CommandArgs object.
        /// </summary>
        /// The command line is assumed to be in the format:
        ///
        ///     CMD [param] [[-|--|\]&lt;arg&gt;[[=]&lt;value&gt;]] [param]
        ///
        /// Basically, stand-alone parameters can appear anywhere on the command line.
        /// Arguments are defined as key/value pairs. The argument key must begin
        /// with a '-', '--', or '\'.  Between the argument and the value must be at
        /// least one space or a single '='.  Extra spaces are ignored.  Arguments MAY
        /// be followed by a value or, if no value supplIEd, the string 'true' is used.
        /// You must enclose argument values in quotes if they contain a space, otherwise
        /// they will not parse correctly.
        ///
        /// Example command lines are:
        ///
        /// cmd first -o outfile.txt --compile second \errors=errors.txt third fourth --test = "the value" fifth
        ///
        /// <param name="args">array of command line arguments</param>
        /// <returns>CommandArgs object containing the parsed command line</returns>
        public static CommandArgs Parse(string[] args)
        {
            char[] kEqual = new char[] { '=' };
            char[] kArgStart = new char[] { '-', '\\' };
            CommandArgs ca = new CommandArgs();
            int ii = -1;
            string token = NextToken( args, ref ii );
            while ( token != null )
            {
                if (IsArg(token))
                {
                    string arg = token.TrimStart(kArgStart).TrimEnd(kEqual);
                    string value = null;
                    if (arg.Contains("="))
                    {
                        string[] r = arg.Split(kEqual, 2);
                        if ( r.Length == 2 && r[1] != string.Empty)
                        {
                            arg = r[0];
                            value = r[1];
                        }
                    }
                    while ( value == null )
                    {
                        string next = NextToken(args, ref ii);
                        if (next != null)
                        {
                            if (IsArg(next))
                            {
                                ii--;
                                value = "true";
                            }
                            else if (next != "=")
                            {
                                value = next.TrimStart(kEqual);
                            }
                        }
                    }
                    ca.ArgPairs.Add(arg, value);
                }
                else if (token != string.Empty)
                {
                    ca.Params.Add(token);
                }
                token = NextToken(args, ref ii);
            }
            return ca;
        }
        static bool IsArg(string arg)
        {
            return (arg.StartsWith("-") || arg.StartsWith("\\"));
        }
        static string NextToken(string[] args, ref int ii)
        {
            ii++;
            while ( ii < args.Length )
            {
                string cur = args[ii].Trim();
                if (cur != string.Empty)
                {
                    return cur;
                }
                ii++;
            }
            return null;
        }
    }
}