题解 | #统计大写字母个数#

const readline = require('readline');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
});

rl.on('line', function (line) {
  const tokens = line.split('');
  let total = 0;
  tokens.forEach((item) => {
    if (/[A-Z]/.test(item)) {
      total++;
    }
  });
  console.log(total);
});