feat: works

__crypto/simple_contract/src/cmd_default.rs

@@ -0,0 +1,15 @@
+use clap::{App, Arg, ArgMatches};
+use rust_util::information;
+use crate::cmd::CommandError;
+pub struct CommandImpl;
+impl CommandImpl {
+    pub fn process_command<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
+        app.arg(Arg::with_name("verbose").long("verbose").short("v").multiple(true).help("Show verbose info"))
+    }
+    pub fn run(arg_matches: &ArgMatches) -> CommandError {
+        let verbose_count = arg_matches.occurrences_of("verbose");
+        information!("Verbose count: {}", verbose_count);
+        information!("This is default command cli ...");
+        Ok(())
+    }
+}