语法高亮

function helloWorld () {
  alert("Hello, World!")
}

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

package hello

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

#include <stdio.h>

/* Hello */
int main(void){
  printf("Hello, World!");
  return 0;
}

// 'Hello World!' program

#include <iostream>

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

using System;
class HelloWorld{
  public static void Main(){
    System.Console.WriteLine("Hello, World!");
  }
}

<html>
<body>
  Hello, World!
</body>
</html>

package main
import fmt "fmt"

func main()
{
   fmt.Printf("Hello, World!\n");
}

object HelloWorld with Application {
  Console.println("Hello, World!");
}

<?php
  echo 'Hello, World!';
?>

print("Hello, World!")