Shell

echo(“Hello, world!”);

DOM

alert(“Hello, world!”);

Ada

Put_Line(“Hello, world!”);

Pascal

writeln(“Hello, world!”);

JavaScript

console.log(“Hello, world!”);

JAVA

System.out.println(“Hello, world!”);

C语言

printf("%s\n", “Hello, world!”);

C++

cout << “Hello, world!” << endl;

Python

println(“Hello, world!”)

PHP

var_dump(“Hello, world!”);

SQL

select * from word where word = ‘Hello, word!’