如何在nodejs中获取同步readline或使用异步“模拟”它？

我想这就是你想要的：

const readline = require('readline');const rl = readline.createInterface({ input: process.stdin , output: process.stdout });const getLine = (function () {    const getLineGen = (async function* () {        for await (const line of rl) { yield line;        }    })();    return async () => ((await getLineGen.next()).value);})();const main = async () => {    let a = Number(await getLine());    let b = Number(await getLine());    console.log(a+b);    process.exit(0);};main();

注意：此答案使用实验性功能，并且需要Node v11.7