node.js P1001 A+B Problem

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题面
基本输入输出

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

IO.on("line", function(line) {
    var list, a, b;
    list = line.split(' ');
    a = Number(list[0]);
    b = Number(list[1]);
    console.log(a + b);
    IO.close();
});

IO.on("close", function() {
    process.exit(0);
})

官方标程

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const fs = require('fs')
const data = fs.readFileSync('/dev/stdin')
const result = data.toString('ascii').trim().split(' ').map(x => parseInt(x)).reduce((a, b) => a + b, 0)
console.log(result)
process.exit()