如何在yargs中指定默认子命令？

const yargs = require('yargs');

yargs.command('start', 'Start the application', () => {
  console.log('Starting the application...');
});

yargs.command('stop', 'Stop the application', () => {
  console.log('Stopping the application...');
});

yargs.default('command', 'start'); // 设置默认子命令为 'start'

yargs.parse();

Starting the application...