code: function getHelp() {
      log.success("moli dev command help info");
      log.log("");
      log.log("  Usage : ");
      log.log("");
      log.log("  moli dev [options]");
      log.log("");
      log.log("  options:");
      log.log("");
      log.log("    -m, --mobile       run dev in mobile mode");
      log.log("    -w, --web          run dev in web mode（default mode）");
      log.log("    --custom [type]    run dev in user custom [type]");
      log.log("    -h, --help         moli-dev help info");
      log.log("    -v, --version      moli-dev version info");
      log.log("");
      log.log("  Examples:");
      log.log("");
      log.log("    $ moli dev -w");
      log.log("    $ moli dev --mobile");
      log.log("    $ moli dev -custom tv");
      log.log("");
      process.exit(0);
  }
docs: 帮助信息