牛客网 JavaScript有两个版本 （V8）（Node）

//readline() 读取输入内容 （只读取一行，如果输入内容有多行，需要重复readline（）
JavaScript(v8);
//当输入有值时执行
while((line = readline())){
  var lines = line.split(' ');
  var a = parseInt(lines[0]);
  var b = parseInt(lines[1]);
  print(a+b);
}
JavaScript(Node);
const {match}=require("assert");
var readline = require("readline");
const rl = readline.createInterface({
 input:process.stdin,
 output:process.stdout,
});
rl.on("line",function(line){
 var token = line.split(" ");
 console.log(parseInt(tokens[0])+parseInt(token[1]));
})
var a,b;
var solveMefirst = (a,b)=> a+b;
while ((a = readline()) != null && (b = readline()) != null) {
  let c = solveMeFirst(a, b);
  print(c);
}