题解 | #统计大写字母个数#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
  const str = await readline()
  const upperLength = str.split(/[^A-Z]+/)
   let upperCount = 0
   for(let i=0; i<upperLength.length; i++) {
     upperCount += upperLength[i].length
     
   }
   console.log(upperCount)
}()