如果你想先问用户行数:

//array to save line by line let xInputs = []; const getInput = async (resolve)=>{ const readline = require('readline').createInterface({ input: process.stdin, output: process.stdout, }); readline.on('line',(line)=>{ readline.close(); xInputs.push(line); resolve(line); }) } const getMultiInput = (numberOfInputLines,callback)=>{ let i = 0; let p = Promise.resolve(); for (; i < numberOfInputLines; i++) { p = p.then(_ => new Promise(resolve => getInput(resolve))); } p.then(()=>{ callback(); }); } //get number of lines const readline = require('readline').createInterface({ input: process.stdin, output: process.stdout, terminal: false }); readline.on('line',(line)=>{ getMultiInput(line,()=>{ //get here the inputs from xinputs array }); readline.close(); })

如果你想先问用户行数:

//array to save line by line let xInputs = []; const getInput = async (resolve)=>{ const readline = require('readline').createInterface({ input: process.stdin, output: process.stdout, }); readline.on('line',(line)=>{ readline.close(); xInputs.push(line); resolve(line); }) } const getMultiInput = (numberOfInputLines,callback)=>{ let i = 0; let p = Promise.resolve(); for (; i < numberOfInputLines; i++) { p = p.then(_ => new Promise(resolve => getInput(resolve))); } p.then(()=>{ callback(); }); } //get number of lines const readline = require('readline').createInterface({ input: process.stdin, output: process.stdout, terminal: false }); readline.on('line',(line)=>{ getMultiInput(line,()=>{ //get here the inputs from xinputs array }); readline.close(); })

// Work on POSIX and Windows
var fs = require("fs");
var stdinBuffer = fs.readFileSync(0); // STDIN_FILENO = 0
console.log(stdinBuffer.toString());

在我的例子中，程序(elinks)返回的行看起来是空的，但实际上有特殊的终端字符、颜色控制代码和退格，所以在其他答案中提供的grep选项对我不起作用。所以我用Node.js写了这个小脚本。我说这个文件很紧，但那只是个随机的名字。

#!/usr/bin/env node

function visible(a) {
    var R  =  ''
    for (var i = 0; i < a.length; i++) {
        if (a[i] == '\b') {  R -= 1; continue; }  
        if (a[i] == '\u001b') {
            while (a[i] != 'm' && i < a.length) i++
            if (a[i] == undefined) break
        }
        else R += a[i]
    }
    return  R
}

function empty(a) {
    a = visible(a)
    for (var i = 0; i < a.length; i++) {
        if (a[i] != ' ') return false
    }
    return  true
}

var readline = require('readline')
var rl = readline.createInterface({ input: process.stdin, output: process.stdout, terminal: false })

rl.on('line', function(line) {
    if (!empty(line)) console.log(line) 
})

process.stdin.pipe(process.stdout);

#!/usr/bin/env node

const EventEmitter = require('events');

function stdinLineByLine() {
  const stdin = new EventEmitter();
  let buff = '';

  process.stdin
    .on('data', data => {
      buff += data;
      lines = buff.split(/\r\n|\n/);
      buff = lines.pop();
      lines.forEach(line => stdin.emit('line', line));
    })
    .on('end', () => {
      if (buff.length > 0) stdin.emit('line', buff);
    });

  return stdin;
}

const stdin = stdinLineByLine();
stdin.on('line', console.log);