Hello World ! 节日快乐！

节日快乐！

世界你好，Hello World

• Java

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

• Python

# 2.0
print "Hello World"
# 3.0
print ("Hello World")

• Shell

echo "Hello World"

• SQL

SELECT 'Hello World' FROM DUAL;

• HTML5

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>say sth to this world</title>
</head>
<body>
    Hello World
</body>
</html>

• JavaScript

function HelloWorld(){
	document.write("Hello World");
}
HelloWorld();

• VBScript

MsgBox("Hello World!")

• Delphi

procedure TForm1.Button1Click(Sender:TObject);
begin
    label1.Caption := 'Hello World';
end;
procedure TForm1.FormCreate(Sender:TObject);
begin
end;
end.

• Scala

object HelloWorld
{
    def main(args:Array[String])
  {
        println("Hello World!");
  }
}

• R

print ("Hello World")

• Ruby

print "Hello World"

• Matlab

disp ('Hello World');

• GO

import "fmt"

func main() {
    fmt.Print("Hello World")
}

• PHP

<!DOCTYPE html>
<body>
<?php
echo "Hello World";
?>
</body>
</html>

• Perl

print "Hello World"

• Swift

print ("Hello World")

• Kotlin

fun main(args:Array<String>){
    println("Hello World")
}

• C

#include <stdio.h>
int main()      # main入口函数
{
    printf("Hello World");
    return 1;
}

• C++

#include<iostream>
int main(int argc, char const *argv[])
{
    std::cout<<"Hello World";
    return 0;
}

• **Windows CMD **

@echo off
echo Hello World

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