A+B.md

C语言:

#include <stdio.h>
int main(){
    int a,b;
    while(scanf("%d %d",&a, &b) != EOF)
        printf("%d\n",a+b);
	return 0;
}

---

C++语言

#include <iostream>
using namespace std;
int main(){
    int a,b;
    while(cin >> a >> b)
        cout << a+b << endl;
	return 0;
}

---

Java语言

import java.util.*;
public class Main{
	public static void main(String args[]){
		Scanner cin = new Scanner(System.in);
		int a, b;
		while (cin.hasNext()){
			a = cin.nextInt(); b = cin.nextInt();
			System.out.println(a + b);
		}
	}
}

---

Ruby语言

a=gets
while a != nil && a != "" && a != "\r" && a != "\n" do
	arr = a.split(" ")
	sum = 0
	arr.each_with_index do |value, index|
		sum = sum + value.to_i
	end
	puts sum.to_s
	a=gets
end

---

Bash语言

#!/bin/bash

read -a arr
#echo ${#arr[@]}
while [ ${#arr[@]} -eq 2 ]
do
sum=$((${arr[0]}+${arr[1]}))
echo "$sum"
read -a arr
done

---

Python语言

#!/usr/bin/env python  
# coding=utf-8  
  
a=[]  
  
for x in raw_input().split():  
    a.append(int(x))  
  
print sum(a)

---

PHP语言

<?php
function solveMeFirst($a,$b){
    return $a + $b;
}
$handle = fopen ("php://stdin","r");
$a = explode(" ",fgets($handle));
$sum = solveMeFirst((int)$a[0],(int)$a[1]);
print ($sum);
fclose($handle);
?>

---

Perl语言

while (<>) {($a, $b) = split; print $a+$b,"\n" }

---

C#语言

using System;

namespace myApp
{
    class Program
    {
        public static void Main()
        {
            string line;
            
            while (!string.IsNullOrEmpty(line = Console.ReadLine()))
            {
                string[] p = line.Split(' ');
                int n = int.Parse(p[0]);
                int m = int.Parse(p[1]);
                int sum = m + n;
                   
                Console.WriteLine(sum.ToString());
            }
        }
    }
}

---

Obj-C语言

#include <stdio.h>
int main(){
    int a,b;
    while(scanf("%d %d",&a, &b) != EOF)
        printf("%d\n",a+b);
	return 0;
}

---

FreeBasic语言

dim a.b
open "data.in" for input as #1
while not eof(1)
 input #1, a,b
 print ""&(a+b)
wend

---

Schema语言

(define a (read))
(define b (read))
(write (+ a b))
(newline)
(exit 0)

---

Clang编译器的C语言

#include <stdio.h>
int main(){
    int a,b;
    while(scanf("%d %d",&a, &b) != EOF)
        printf("%d\n",a+b);
	return 0;
}

---

Clang++编译器的C++语言

#include <iostream>
using namespace std;
int main(){
    int a,b;
    while(cin >> a >> b)
        cout << a+b << endl;
	return 0;
}

---

Lua语言

local count = 0
function string.split(str, delimiter)
	if str==nil or str=='' or delimiter==nil then
		return nil
	end
	
    local result = {}
    for match in (str..delimiter):gmatch("(.-)"..delimiter) do
        table.insert(result, match)
    end
    return result
end
while true do
	local line = io.read()
	if line == nil or line == "" then break end
	local tb = string.split(line, " ")
	local sum = 0
	for i=1, #tb do
		
		local a = tonumber(tb[i])
		sum = sum+a
	end
	if count>0 then
		io.write("\n")
	end
	io.write(string.format("%d", sum))
	count = count+1
end

---

Go语言

package main
import "fmt"
func main() {
  a:=0
  b:=0
  fmt.Scanf("%d%d",&a,&b);
  fmt.Printf("%d\n",a+b)
}

---

JavaScript 语言

var line;
while ((line = readline()) != '') {
	//print(line);
	var arr = line.split(' ');
	var sum = 0;
	for (var i=0; i<arr.length; i++) {
		var a = parseInt(arr[i]);
		if (!isNaN(a))
			sum += a;
	}
	print(sum.toString());
}

---

nodejs语言

var stdinstr = ""
process.stdin.setEncoding("utf8")

process.stdin.on('data', function(chunk) {
	//stdinstr += chunk.toString()
	//console.log(chunk.charCodeAt(0));
	if (chunk == undefined || chunk == null || chunk == '' || chunk.indexOf(' ') == -1)
		process.exit();
	else {
		var arr = chunk.split(' ');
		var a = parseInt(arr[0]);
		var b = parseInt(arr[1]);
		console.log(a + b);
	}
});

---

Cobol

       IDENTIFICATION   DIVISION.
       PROGRAM-ID.      'HELLOWORLD'.
       ENVIRONMENT      DIVISION.
       DATA             DIVISION.
       FILE             SECTION.
       WORKING-STORAGE  SECTION.
       01 L PIC X(25).
       01 A PIC 9999.
       01 B PIC 9999.
       01 C PIC ZZZ9.
       01 S  PIC X(20).
       01 C-EDITED  PIC X(20).
	   PROCEDURE        DIVISION.
       MAIN-PROCEDURE.
            INPUTNUMBER SECTION.
            ACCEPT L.
            UNSTRING L 
				DELIMITED BY ' '
				INTO A B.
            COMPUTE C=A+B.
            UNSTRING C DELIMITED BY ALL SPACES INTO S,C-EDITED.
            DISPLAY C-EDITED.
            STOP RUN.