开源最前线(ID:OpenSourceTop)编译
链接:https://github.com/leachim6/hello-world
500+种编程语言写的“hello world”你见过么?你会几个?


几乎每个程序员写出来的第一个程序都是“hello world”,Hello World最早是由 Brian Kernighan 创建的。1978年,Brian Kernighan写了一本名叫《C程序设计语言》的编程书,在程序员中广为流传。他在这本书中第一次引用的Hello World程序:

main (){
  extrn a,b,c;
  putchar (a); putchar (b); putchar (c); putchar ('!*n');
  }
  a 'hell';
  b 'o, w';
  c 'orld';


之后“Hello world”就开始流行起来,并成为了计算机发展历史上一个具有重要意义的里程碑。


最近猿妹在GitHub上发现了一个十分有趣的开源项目,它汇集了500多种编程语言编写的“Hello world”程序。


500+种编程语言写的“hello world”你见过么?你会几个?



这个项目名称就叫hello-world,目前已经获得3241个Star,959个Fork(GitHub地址:https://github.com/leachim6/hello-world),下面我们先看几个过过瘾:


Ada:

with Text_IO;
procedure Hello_World is
begin
Text_IO.Put_line("Hello World!");
end Hello_World;


Android:

package com.example.helloworld;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class HelloWorld extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView tv = new TextView(this);
tv.setText("Hello, World");
setContentView(tv);
}
}


Bash:

#!/bin/bash
echo "Hello World!"


Basic:

10 REM Hello World in BASIC
20 PRINT "Hello World"


C++:

#include  // include API
using namespace std;
int main() // the main code portion of a C++ program
{
cout << "Hello World" << endl; //print Hello World on the screen
return 0; // conventional
}


Caml:

print_endline "Hello world!";;


Delphi:

program HelloWorld;
{$APPTYPE CONSOLE}
begin
WriteLn('Hello World');
end.


Dart:

main() {
print('Hello, World!');
}


Elixir:

#!/usr/bin/env elixir
IO.puts "Hello world"


erlang_escript:

#!/usr/bin/env escript
main(_) ->
io:format("Hello World~n").


Factor:

USING: io ;
"Hello World" print


Focal:

0.1.0.1 TYPE "HELLO WORLD" , !


Go:

package main
func main() {
println("Hello, World")
}


Groovy:

println "Hello World"


Hack:

echo 'Hello World';


Haskell:

module Main where
main = putStrLn "Hello, World!"


Islisp:

(format (standard-output) "Hello, world!")


Java:

public class Java {
public static void main(String[] args) {
System.out.println("Hello World");
}
}


JavaScript:

console.log("Hello World");


Lisp:

; LISP
(DEFUN hello ()
(PRINT (LIST 'HELLO 'WORLD))
)
(hello)


感兴趣的想要查看所有语言的“hello world”程序,就自己到GitHub项目页查看吧,最后奉上GitHub地址:https://github.com/leachim6/hello-world

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