chalk 使用

const chalk = require('chalk'); // 一个美化 console 输出的库
(()=>{
  console.log(chalk.blue.bgRed('Hello world!'));

  console.log( chalk.blue.underline.bold('with a blue substring'));

  console.log(`
  CPU: ${chalk.red('90%')}
  RAM: ${chalk.green('40%')}
  DISK: ${chalk.yellow('70%')}
  `);

  // 可以自己定义自己的 log 风格
  const log = console.log;
  const error = chalk.bold.red;
  const warning = chalk.keyword('orange');
  
  log(error('Error!'));
  log(warning('Warning!'));

})();