static async Task Main(string[] args)
{
var result = Parser.Default
.ParseArguments <DownloadCommand, InstallCommand, ListCommand, NewCommand>(args);
await result.MapResult
(
async (DownloadCommand downloadCommand) =>
await DownloadParser.Parse(downloadCommand),
async (InstallCommand installCommand) =>
await InstallParser.Parse(installCommand),
async (ListCommand listCommand) => await Task.Run(() => ListParser.Parse()),
async (NewCommand newCommand) => await NewParser.Parser(),
async error => await Task.FromResult(1)
);
}
public static async Task <int> Parse(DownloadCommand command)
{
if (_parser == null)
{
_parser = new DownloadParser();
}
try
{
_parser.Options = command;
}
catch (InvalidOperationException e)
{
Console.WriteLine("模板参数有误，请检查后重试。错误信息：{0}", e.Message);
}
catch (ParseException e)
{
Console.WriteLine("模板参数有误，请检查后重试。错误信息：{0}", e.Message);
}
return(await _parser.Parse());
}