“Hello, World!” 程序是编程世界的第一个仪式。
当你在新语言中写下这行代码并看到它成功输出时，就完成了与这门语言最初的握手。它简单到近乎平淡，却又至关重要——既是初学者验证语法规则的入门练习，也是开发者确认环境配置无误的快速检查。
这个传统始于1972年贝尔实验室的《A Tutorial Introduction to the Language B》，如今已成为跨越所有编程语言的共同起点。它不只是一段代码，更像是程序员之间的默契：如果连 “Hello, World!” 都跑不通，那更复杂的挑战也不必继续了。
“Hello, World!” 的 N 种写法
Ada
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| with Ada.Text_IO;
use Ada.Text_IO;
procedure Hello is
begin
Put_Line ("Hello, World!");
end Hello;
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ALGOL60
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| BEGIN DISPLAY("Hello, World!") END.
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ALGOL68
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| begin
printf(($gl$,"Hello, World!"))
end
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AppleScript
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| display alert "Hello, World!"
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Assembly Language (Linux x64)
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| section .text
global _start
_start:
; sys_write(1, msg, len)
mov rax, 1
mov rdi, 1
lea rsi, [rel msg]
mov rdx, len
syscall
; sys_exit(0)
mov rax, 60
xor rdi, rdi
syscall
section .rodata
msg: db "Hello, World!", 0xA
len: equ $ - msg
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BASIC
Batchfile
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| @echo off
echo Hello, World!
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Bash
C
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| #include <stdio.h>
int main() {
printf("Hello, World!");
return 0;
}
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C++
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| #include <iostream>
int main() {
std::cout << "Hello, World!" << std::endl;
return 0;
}
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c#
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| Console.WriteLine("Hello, World!");
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Clojure
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| (println "Hello, World!")
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COBOL
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| IDENTIFICATION DIVISION.
PROGRAM-ID. HELLO-WORLD.
* simple hello world program
PROCEDURE DIVISION.
DISPLAY 'Hello, World!'.
STOP RUN.
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D
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| import std.stdio;
void main() {
writeln("Hello, World!");
}
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Dart
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| void main() {
print('Hello, World!');
}
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Elixir
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| IO.puts("Hello, World!")
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Ezhil
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| பதிப்பி "உலகே வணக்கம்"
பதிப்பி "Hello, World!"
exit()
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Forth
Fortran
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| program Hello
print *, "Hello, World!"
end program Hello
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Go
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| package main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}
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Haskell
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| main :: IO ()
main = putStrLn "Hello, World!"
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Java
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| public class Main {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
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JavaScript
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| console.log("Hello, World!");
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| document.write("Hello, World!");
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Julia
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| println("Hello, World!")
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Kotlin
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| fun main() {
println("Hello, World!")
}
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Lisp
Logo
Lua
Objective-C
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| #import <stdio.h>
int main() {
printf("Hello, World!\n");
}
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| #import <Foundation/Foundation.h>
int main(int argc, const char * argv[]) {
@autoreleasepool {
NSLog(@"Hello, World!");
}
return 0;
}
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OCaml
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| print_endline "Hello, World!"
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Pascal
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| program Hello;
begin
writeln ('Hello, World!');
end.
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Perl
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| print "Hello, World!\n";
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Perl6
PHP
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| <?php
echo 'Hello, World!';
?>
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PowerShell
Prolog
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| main() :- write("Hello, World!"), nl.
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Python2
Python3
R
Racket
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| #lang cli
(displayln "Hello, World!")
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Ruby
Rust
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| fn main() {
println!("Hello, World!");
}
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Simula
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| Begin
OutText ("Hello, World!");
Outimage;
End;
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Smalltalk
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| Transcript show: 'Hello, World!'.
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Standard ML
Swift
Tcl
TI-BASIC
VBScript
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| WScript.Echo "Hello, World!"
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WebAssembly Text Format
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| (module
(import "console" "log" (func $log (param i32)))
(memory 1)
(data (i32.const 0) "Hello, World!\00")
(func (export "hello")
(call $log (i32.const 0))
)
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易语言
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| 信息框（“Hello, World!”,0,,）
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