Node.js：readline永不返回

Question

我尝试了几种不同版本的node.js，但readline.question似乎从未执行我的回调。有人可以发现我可能在做错什么吗？

const readline = require('readline');

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

rl.question('What do you think of node.js? ', function(answer) {
  console.log('Thank you for your valuable feedback:', answer);
  rl.close();
});

Answer 1

/*
 * main.js
 */
//
const readline = require('readline');
//
const rl = readline.createInterface({
input: process.stdin,
output:process.stdout
});
//
var question = "What do you think of node.js? \n";
var feedback = "Thank you for your valuable feedback:\n ";
console.log(question);
rl.question('//////////////...ANSWER..//////////////////////\n:',
function(answer){
console.log(feedback, answer);
rl.close();
});
//
/////////////////////////////////////////////////////////////////////
//Your environment should be set up for using Node.js and npm.
/////////////////////////////////////////////////////////////////////
/////////////////...OUTPUT...////////////////////////////////////////
//$ node main.js
//What do you think of node.js?
//
//////////////...ANSWER...//////////////////////
//: Cool. All APIs of Node.js are asynchronous.
//Thank you for your valuable feedback:
//  Cool. All APIs of Node.js are asynchronous.
//
////////////////////////////////////////////////////////////////////
//
//

Answer 2

代码运行正常，我的问题是由于我使用forever导致的。使用forever或pm2之类的流程管理器时，请注意您的流已被修改，因此基础流程可能无法接收输入。