学习编程语言的第一个程序一般是输出 "Hello World"。 接下来来看下26 种不同语言如何输出 "Hello World"：

1. C

#include  int main(){  printf("Hello, World");  return(0);}

2. C++

#include  int main(){  std::cout << "Hello World";  return 0;}

3. C#

using System;class Program{  public static void Main(string[] args)  {    Console.WriteLine("Hello, World");  }}

4. Bash

echo "Hello, World"

5. Basic

PRINT "Hello, World"

6. HTML

 Hello, World

7. Java

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

8. Clipper

? "Hello, World"

9. Delphi

program HelloWorld;begin Writeln('Hello, World');end.

10. CoffeeScript

console.log 'Hello, World'

11. MatLab

disp('Hello, World')

12. Julia

println("Hello, World")

13. JavaScript

document.write('Hello, World');

14. Logo

print [Hello, World]

15. jQuery

$("body").append("Hello, World");

16. Perl 5

print "Hello, World";

17. Pascal

program HelloWorld;begin WriteLn('Hello, World');end.

18. Objective-C

#import #import  int main(void){  NSLog(@"Hello, World");  return 0;}

19. Visual Basic .NET

Module Module1  Sub Main()    Console.WriteLine("Hello, World")  End SubEnd Module

20. R

cat('Hello, World')

21. VBScript

MsgBox "Hello, World"

22. XSLT

   Hello, World

23. Processing

void setup(){ println("Hello, World");}

24. Ruby

puts "Hello, World"

25. Swift

print("Hello, World")

26. Python

print ("Hello, World")