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
    while(line = await readline()){
        let res = 0;
        line.replace(/[A-Z]/g,(r)=>{
    //    console.log(r)
       res++
        })
        console.log(res)
    }
}()