.NET命令行解析器示例程序（命令行选项功能）

示例需求

拷贝文件，如：copyfiles -s "e:\framework\tenoner - 副本 (2)" -p "*.csproj" -t "e:\framework\tenoner - 副本 (2)\bak"，可以支持：深度拷贝、拷贝符合指定模式的文件、是否覆盖等选项。

使用 commandlineparser
commandlineparser 是一个轻量级的工具，使用非常简答，官方也有教程。

选项类

using system;
using system.collections.generic;
using system.linq;
using system.text;
using system.threading.tasks;

using commandline;
using commandline.text;

namespace copyfiles
{
    class options
    {
        [option(
            's', "source", required = true,
            helptext = "源目录。")]
        public string sourcepath { get; set; }

        [option(
            'p', "pattern", required = true,
            helptext = "文件模式。")]
        public string searchpattern { get; set; }

        [option(
            't', "target", required = true,
            helptext = "目标目录。")]
        public string targetpath { get; set; }

        [option('a', "all", defaultvalue = true,
            helptext = "是否包含所有目录？")]
        public bool alldirectories { get; set; }

        [option('o', "overwrite", defaultvalue = true,
            helptext = "是否覆盖所有文件？")]
        public bool overwrite { get; set; }

        [option('v', "verbose", defaultvalue = true,
            helptext = "是否打印消息？")]
        public bool verbose { get; set; }

        [helpoption]
        public string getusage()
        {
            return helptext.autobuild(this);
        }

        public void writeline(string format, params object[] args)
        {
            if (this.verbose)
            {
                console.writeline(string.format(format, args));
            }
        }
    }
}

工具类

using system;
using system.collections.generic;
using system.linq;
using system.text;
using system.threading.tasks;

using commandline;
using happy.utils;

namespace copyfiles
{
    class program
    {
        static void main(string[] args)
        {
            var options = new options();
            if (parser.default.parsearguments(args, options))
            {
                fileutil.copy(
                    options.sourcepath,
                    options.searchpattern,
                    options.targetpath,
                    (sourcefile, targetfile) =>
                    {
                        options.writeline("拷贝文件：{0} 到 {1}", sourcefile, targetfile);
                    },
                    (exceptioninfo) =>
                    {
                        options.writeline(exceptioninfo.exception.message);

                        exceptioninfo.exceptionhandled = true;
                    },
                    options.alldirectories,
                    options.overwrite);
            }
        }
    }
}