HelloWorld 大全

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代码高亮居然成功了！感谢 Kate 编辑器！

1. 汇编（NASM，Intel 语法，仅 Linux x86）

section .data    msg: db "Hello, world!", 0Ah    .length: equ $ - msgsection .text    global _start_start:    mov eax, 4h    mov ebx, 1h    mov ecx, msg    mov edx, msg.length    int 80h    mov eax, 1h    mov ebx, 0h    int 80h

2. 汇编（GAS，AT&T 语法，仅 Linux x86）

.datamsg: .ascii "Hello, world!\n"msg.length = . - msg.text.global _start_start:movl $4, %eaxmovl $1, %ebxmovl $msg, %ecxmovl $msg.length, %edxint $0x80movl $1, %eaxmovl $0, %ebxint $0x80

3. C

#include <stdio.h>int main(void){puts("Hello, world!");return 0;}

4. C++

#include <iostream>int main(){std::cout << "Hello, world!" << std::endl;return 0;}

5. Java

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

6. C#

public class Hello{public static void Main(string[] args){System.Console.WriteLine("Hello, world!");}}

7. D

import std.stdio;int main(string[] args){writefln("Hello, world!");return 0;}

8. Objective-C

#import <Foundation/Foundation.h>int main(int argc, char *argv[]){NSLog(@"Hello, world!");return 0;}

9. Pascal

Program Hello;BeginWriteLn('Hello, world!');End.

10. Bash

echo "Hello, world!"

11. DOS Batch

@echo offecho Hello, world!

12. Qt/C++

#include <QApplication>#include <QLabel>int main(int argc, char *argv[]){QApplication app(argc, argv);QLabel label(QObject::tr("Hello, world!"));label.show();return app.exec();}

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