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
