“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。 ukgAI<O%
Mj>}zbpk/
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》。 P47V:E%
Bsf7mcXz7z
以下是用不同语言写成的Hello World程序的几个例子: 6q<YJ.,
Ada 4!62/df
with Ada.Text_Io; use Ada.Text_Io; }F6<w{|
procedure Hello is 148V2H)
begin 5F+APz7
Put_Line ("Hello, world!"); pnyWcrBf
end Hello; + Y.1)i}
H?1xjY9sl
v7
汇编语言 pD"vRbYF
4rK{-jvh>m
x86 CPU,DOS,TASM tary6K9K+
MODEL SMALL i
LBvGZ<9
IDEAL FQ%c~N
STACK 100H -F&U
_i_Q?w`
DATASEG rj]F87"
HW DB 'Hello, world!$' F~#zxwd
ql{(Lf$
CODESEG ! hd</_#
MOV AX, @data a/Q$cOs
MOV DS, AX s>_V
MOV DX, OFFSET HW &adI (s~
MOV AH, 09H V!%jf:k
INT 21H hD,:w%M
MOV AX, 4C00H t9
\x%=
INT 21H b2(RpY2Y
END
xp'_%n~K@
0|xIBg)
'# NcZy
x86 CPU,GNU/Linux,NASM .JX EK
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). +[@z(N-h
;Enter this into "hello.asm" then type: @[<nQZw:
;"nasm -f elf hello.asm" 'AGto'Yy;
;"ld hello.o -o hello" 'X).y1'
;"./hello" 4EI7W,y
A61^[Y,dX_
section .data ;data section declaration c5q9LQ/
msg db 'Hello World!',0AH onCKI,"
len equ $-msg ;string length #?MY&hdU9
:a8 YV!X
section .text ;code section declaration L$'[5"ma
;
global _start ;entry point (start of execution) _LP/!D
_start: mov edx,len ;string length >4Y3]6N0.F
mov ecx,msg ;string start h2z_,`iS7
mov ebx,1 ;file handle: stdout I
+5)Jau^S
mov eax,4 ;sys_write I4;A8I
int 80h ;kernel system call R2etB*k6[
;Mm7n12z C
mov ebx,0 ;return value m42T9wSsx
mov eax,1 ;sys_exit G CRz<)1
int 80h ;kernel system call Vt^3iX{!
Sw^X2$h
~AYN
x86 CPU,Windows,MASM32 nMDxH$O
.386 1XG!$4DW
.model flat,stdcall ]A
FI\$qB\
option casemap:none h1 WT
;Include 文件定义 { pu85'DV
include windows.inc n%h^o
include user32.inc bQe^Px5
!.
includelib user32.lib s,bERN7'yO
include kernel32.inc jA".r'D%
includelib kernel32.lib d\e7,"L*Q
;数据段 hLJM%on
.data &<zd.~N"
szCaption db 'A MessageBox!',0 $VAx:Y|
szText db 'Hello,world!',0 !-s!f&_
;代码段 T|&[7%F3"
.code f)]%.>
start: h%WE=\,Qp
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 5<I
invoke ExitProcess,NULL [{4MR%--
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> gVeEdo`$<
end start Iff9'TE
yx V:!gl
FZreP.2)!
AWK =U|N=/y#hJ
BEGIN { print "Hello, world!" } Z*G(5SqUh"
}QZQ3@
3+>G#W~
BASIC kq\)MQ"/X
传统版BASIC(例如GWBASIC): zMIT}$L
nRd)++
10 PRINT "Hello, world!" 9rh}1eo7
20 END "#mBcQ;QLV
B|o2K}%f
或在提示符输入: iy""(c
=PGs{?+&O
?"Hello, world!":END (EPsTox
lKk/p^:
现代版BASIC(例如Quick BASIC): ]v+31vdf:O
>u9Nz0?j
Print "Hello, world!" gGfoO[B
hsu{ey p
以下的语句在Quick BASIC中同样有效: ZiLj=bh
Dk48@`l2
? "Hello,world!" :qC'$dO!
|bgo;J/
8Lw B
B
BCPL {Ay"bjZh
GET "LIBHDR" "RIZV
phO;c;y}
LET START () BE zbJT&@z
$( g^zs,4pPU<
WRITES ("Hello, world!*N") &^4++
$) yDNOt C|
vq34/c^
"`N-* ;*W
Befunge )8g(:`w
"!dlrow olleH">v U*.0XNKp{
, X$/2[o#g
^_@ Haqm^Ky$
[9:9Ql_h
+}jJ&Z9)
Brainfuck Ar~"R4!
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< E!S 78z:
+++++++++++++++.>.+++.------.--------.>+.>. <$JaWL
-_$$Te
cu+FM
C # W"=ry3{
#include <stdio.h> nB .G
V')0 Mr
int main(void) R:B^
{ o.I6ulY8
printf("Hello, world!\n"); )=Jk@yj8x
return 0; v0L\0&+
} 4*$G & TX
->N8#XH2=
%.Q
!oYehj
C++ orb_"Qw
#include <iostream> 8_N]e'WUh
AlJ} >u
int main() yr,=.?C-
{ Sfdu`MQR
std::cout << "Hello, world!" << std::endl; d^`?ed\1
return 0; +@r*}
} ({o'd=nO
p)+k=b
J`2"KzR0w"
C++/CLI !F?XLekTi
int main() 4WK3.6GN
{ =9T$Gr
System::Console::WriteLine("Hello, world!"); =JmT:enV
} f7}*X|_Y
D+>1]ij
mx=BD'
C# (C Sharp) j1(D]Z=\
class HelloWorldApp ,~._}E&9I
{ "Iix
)Ue
public static void Main() H*r>Y
{ 7VP32Eh[
System.Console.WriteLine("Hello, world!"); VH:]@x//{
} 8,uB8C9
} 0x!2ihf
x,'!eCKN
KZeQ47|
COBOL $.bBFWk
IDENTIFICATION DIVISION. ZWS`\M
PROGRAM-ID. HELLO-WORLD. {%C7EAq*
#BSTlz
ENVIRONMENT DIVISION. "]G\9b)
{`w;39$+
DATA DIVISION. @/1w4'M
M.>l#4s,'
PROCEDURE DIVISION. Ox@P6|m
DISPLAY "Hello, world!". wsIW
|@
STOP RUN. ZUVA EH%
2jg-
OWjk=u2Lz
Common Lisp 8S mCpg
(format t "Hello world!~%") aqRhh=iS
+*ZO&yJQ^<
Y;@>b{s
DOS批处理 F)&@P-9+
@echo off ]>LhkA@V
echo "Hello, world!" 3DiLk=\~
rz wF~-m +
R?~Yp?B^
Eiffel Q[vJqkgT
class HELLO_WORLD 4C<jdv_J
OGde00
creation ^)(bM$(`
make m?pstuUK(
feature DnCP
aM4%
make is *1p|5!4c
local M)'HCnvs'
io:BASIC_IO q|o}+Vr
do iOR_[ y,
!!io Vr6@>@SC
io.put_string("%N Hello, world!") t2F_uCr
end -- make Rn`x7(WA
end -- class HELLO_WORLD P
`}zlml
,&jhlZ i
@ezH'y-v
Erlang 1crnmJ!C
-module(hello). cik!GA
-export([hello_world/0]). WHsgjvh"
pk?w\A}
hello_world() -> io:fwrite("Hello, World!\n"). #E?(vA1
=|M>l
OMWbZ>jB
Forth P3cR l']
." Hello, world!" CR [Sr,h0h6
?u/@PR\D
&Q;sSIc
Fortran :=/85\P0SU
WRITE(*,10) KM}f:_J*lg
10 FORMAT('Hello, World!') [`{Z}q&
STOP |uqf:V`z:
END TD'L'm|2
c(:f\Wc3Z
vy0X_DPCr
HTML mQCeo}7N5
<HTML> 56+s~hG
<HEAD> QW$G
<TITLE> Hello World! </TITLE> $}J5xG,}$
</HEAD> 5b!vgm#])
<BODY> |zQ4u
<p>Hello World!</p> jT8#C=a7
</BODY> i=i(%yQ%
</HTML> J?Ra bYd ~
]Y2RqXA*
tSVc|j
HQ9+ JRSSn] pw
H cxA ^:3
LV\DBDM
d]:I(9K
INTERCAL lzYEx
PLEASE DO ,1 <- #13 tE@;X=
DO ,1 SUB #1 <- #238 zA$k0p
DO ,1 SUB #2 <- #112 u+'tfFds&
DO ,1 SUB #3 <- #112 ^aH\7J@Y
DO ,1 SUB #4 <- #0 @\|_
DO ,1 SUB #5 <- #64 |?qquD 4=
DO ,1 SUB #6 <- #238 GliwY_
DO ,1 SUB #7 <- #26 j Dy-)2<
DO ,1 SUB #8 <- #248 jp0<pw_
DO ,1 SUB #9 <- #168 ^.1c{0Y^0
DO ,1 SUB #10 <- #24 99:C"`E{
DO ,1 SUB #11 <- #16 in~D
DO ,1 SUB #12 <- #158 Qa.<K{m#?
DO ,1 SUB #13 <- #52 ^C_#<m_k
PLEASE READ OUT ,1 1#.>a$>
PLEASE GIVE UP Zb1<:[
o$w_Es]Ma
W#KpPDgZE
Java I_<I&{N>
public class Hello W_kHj}dj,p
{ p1&b!*o- &
public static void main(String[] args) a4XU?-sUh
{ U@-^C"R
System.out.println("Hello, world!"); kuol rfGB
} #=6E\&NC
} ^c&L,!_)H
W7 Cc
cIav&