题解 | 牛牛学说话之-字符串

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

void async function () {
    const lines = await readline()
    const reg = /^[A-Za-z0-9]+$/
    if (reg.test(lines) && lines.length >= 1 && lines.length <= 10000) {
        console.log(lines);

    } else {
        console.log('输入不符合要求');
    }

    rl.close()
}()