“Hello, World!”程序是一个只在计算机屏幕上打印出“Hello, World!”(英语,意为“世界,你好!”)字串的计算机程序。该程序通常是计算机程序设计语言的初学者所要学习编写的第一个程序。它还可以用来确定该语言的编译器、程序开发环境以及运行环境已经正确安装。 :&$v.#
;/23CFYM
将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 IwbV+mWQ
x` wUi*G
以下是用不同语言写成的Hello World程序的几个例子: OHngpe4
Ada ]B&jMj~y&
with Ada.Text_Io; use Ada.Text_Io; k+@ :+RL
procedure Hello is c0jTQMe4yl
begin _q-k1$o$
Put_Line ("Hello, world!"); FDGzh/
end Hello; Bq4@I_b
E'+z.~+
)WEOqaR]
汇编语言 0Iyb}
ZLP0SCkuR
x86 CPU,DOS,TASM E7SmiD@)
MODEL SMALL 2I=4l
IDEAL $RRh}w\0^
STACK 100H ] : ](xW%
.UK`~17!
DATASEG 9j;!4AJ1t
HW DB 'Hello, world!$' +r"fv*g"
*m&'6qsS
CODESEG Fkqw#s(T
MOV AX, @data 'OhGSs|
MOV DS, AX FV OPC:}bj
MOV DX, OFFSET HW 0eA|Uq~
MOV AH, 09H PGTjOkx
INT 21H K[V#Pj9
MOV AX, 4C00H ^m.%FIwR
INT 21H a|dn3R>vX
END 77]Fp(uI
` apCu
8X\":l:
x86 CPU,GNU/Linux,NASM >\lBbqa#
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ,}^;q58
;Enter this into "hello.asm" then type: );p:[=$71
;"nasm -f elf hello.asm" 0)vX
;"ld hello.o -o hello" kf' 4C
"}
;"./hello" QcdAg%"yy
Jjx1`S*i
section .data ;data section declaration _ ^0UK|[
msg db 'Hello World!',0AH ,F|49i.K
len equ $-msg ;string length 8hX/~-H
;T!ZO@1X
section .text ;code section declaration .T~Oc'wGo
global _start ;entry point (start of execution) nG|
NRp
_start: mov edx,len ;string length .k5&C/jv
mov ecx,msg ;string start vWYU'_=
mov ebx,1 ;file handle: stdout hus9Zv4
mov eax,4 ;sys_write -zm-|6[Wi
int 80h ;kernel system call ^"J)^3j<
40;4=
mov ebx,0 ;return value R8,
g^N
mov eax,1 ;sys_exit W_]onq6
int 80h ;kernel system call `jGG^w3
o7fJ@3B/
F^wm&:%{`
x86 CPU,Windows,MASM32 {@X)=.Zf
.386 H7Ee0T(`
.model flat,stdcall P[gYENQ
option casemap:none f5t/=/6>F
;Include 文件定义 Bc?KAK
include windows.inc Vfr.Yoy
include user32.inc lM%3 ?~?Q&
includelib user32.lib E*UE?4FSw|
include kernel32.inc /V>yF&p
includelib kernel32.lib vq5o?$:-
;数据段 '!XVz$C
.data %Wg8dy|
szCaption db 'A MessageBox!',0 ff2`4_,|
szText db 'Hello,world!',0 r)f+j@KF
;代码段 7MwS[N%#
.code J+Zp<Wu-
start: AKUmh
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `R_;n#3F0
invoke ExitProcess,NULL <L<d_
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> J4m2|HK
end start z CFXQi
}m.45n/
Sk%*Zo{|
AWK B5/"2i
BEGIN { print "Hello, world!" } mqoB]H,
YyD0g9{
M:.0]'[s5
BASIC ,-5|qko=
传统版BASIC(例如GWBASIC): F+m;y
d`J~w/]
`\
10 PRINT "Hello, world!" Q;eY]l8
20 END [|APMMYK1
7NQEn Al
或在提示符输入: 1C<@QrT
!,JV<(7k
?"Hello, world!":END ;^|:*
:$&