“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。 6fV)8,F3
}=|ZEhtOp
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》。 0&.lSwa
c}QJ-I
以下是用不同语言写成的Hello World程序的几个例子: .u*].As=
Ada UeICn@)\y
with Ada.Text_Io; use Ada.Text_Io; vLS9V/o
procedure Hello is e6R"W9
begin *(`.h\+
Put_Line ("Hello, world!"); (Z$6JNkz
end Hello; u.[JYZ
iTt=aQjd
jkP70Is
汇编语言 :7ngVc
hX_p5a1t
x86 CPU,DOS,TASM 0l6iv[qu5w
MODEL SMALL *i{.@RX?
IDEAL ~1'468
STACK 100H Qf|}%}%fp
vs@:L)GW\
DATASEG e\_6/j7'
HW DB 'Hello, world!$' :(b3)K
+r$.v|6
CODESEG |+:ZO5FaO
MOV AX, @data z{g<y^Im+E
MOV DS, AX GzXP
MOV DX, OFFSET HW 5)zB/Ta<
MOV AH, 09H ,&?q}M
INT 21H (d;(FBk='
MOV AX, 4C00H
)M N
yOj
INT 21H SU'1#$69F
END j_yFH#^W:
iFCH$!
ptv4v[gQ
x86 CPU,GNU/Linux,NASM <e&QTyb
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). qX'a&~s)n
;Enter this into "hello.asm" then type: j$|C/E5?
;"nasm -f elf hello.asm" JX)z<Dz$
;"ld hello.o -o hello" gyQ9Z}
;"./hello" ~fp+@j-A
aF{i
A\
section .data ;data section declaration GLQvAHC
msg db 'Hello World!',0AH YaZt+WA
len equ $-msg ;string length 8Qz7uPq
_
1{5~
section .text ;code section declaration ,okJ eZ
global _start ;entry point (start of execution) EjX'&"3.
_start: mov edx,len ;string length ,N7l/6
mov ecx,msg ;string start 0*;9CH=BE
mov ebx,1 ;file handle: stdout E9d i
mov eax,4 ;sys_write KHus/ M&0
int 80h ;kernel system call @!a]qAt
wt.{Fqm
mov ebx,0 ;return value :z} _y&]
mov eax,1 ;sys_exit ls"\YSq$
int 80h ;kernel system call 3:8nwt
(bFWT_CChz
vx5o
k1UY
x86 CPU,Windows,MASM32 _{`'{u
.386 :y-0qzD?
.model flat,stdcall qv*uM0G6i
option casemap:none "4k=(R?
;Include 文件定义 YTjuSV
include windows.inc @j\?h$A/
include user32.inc ]b~2Dap
includelib user32.lib Ul713Bjz
include kernel32.inc BQuliX&
includelib kernel32.lib FSwgPIO>
;数据段 KYRm
Ui#
.data X\^& nLa
szCaption db 'A MessageBox!',0 aC8,Y$>?E`
szText db 'Hello,world!',0 y|+~>'^JR
;代码段 i3 l #~
.code 7z&adkG:
start: /,!7jF:
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK }u3H4S<o
invoke ExitProcess,NULL spU!t-n67
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> _KM $u>B8
end start lGnql 1(
sPE)m_u
}Uwkef.Q
AWK 3dX=xuQ%/
BEGIN { print "Hello, world!" } CVGOX z
93^(O8.
.i3lG(
YG
BASIC 17n+4J]
传统版BASIC(例如GWBASIC): iA%'
;V
~^%0V<*-}
10 PRINT "Hello, world!" yYG3/Z3u5
20 END wHt#'`5
YM`:L
或在提示符输入: Vyq#p9Q
0?6If+AC
?"Hello, world!":END ER;lkF`RF
@tE&<[e
现代版BASIC(例如Quick BASIC): w]W`R.
5!SoN}$
Print "Hello, world!" s0\f9D
co$Hi9JE
以下的语句在Quick BASIC中同样有效: }1a <{&
1Es*=zg
? "Hello,world!" G. -h=DT]
+3/k/W
oeu|/\+HW
BCPL aDN6MZM
GET "LIBHDR" }&Wp3EWw
(^DLCP#*
LET START () BE wO2V%v^bp
$( xf V,==uF
WRITES ("Hello, world!*N") Xr@l+zr
$) RjR&D?dc
x9x#'H3
YM#
Befunge .%x"t>]
"!dlrow olleH">v iA55yT+
, p@?7^nIR*u
^_@ )K>Eniou
u(V
;Pol#0_(
Brainfuck yCF"Z/.
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< "*Lj8C3|n
+++++++++++++++.>.+++.------.--------.>+.>. 8iMF 8\
E;6Y? vJ
EX`"z(L
C rao</jN.9
#include <stdio.h> ^lHb&\X
y-w2O]
int main(void) p{iG{
{ {l&Ltruhz
printf("Hello, world!\n"); :V&N\>Wo
return 0;
F^ I\X
} l,*yEkU
nc3sty1`
cZNi~
C++ u~$WH, P3
#include <iostream> %v5)s(Yu
L8K0^~Mk
int main() >;&Gz-lm
{ YniZ(
~^K
std::cout << "Hello, world!" << std::endl; 7%{R#$F
return 0; GE%2/z p
} RY9+ 9i
`d75@0:
,/i_QgP
C++/CLI :=rA Yc3]
int main() T#\p%w9d
{ CD^CUbGk
System::Console::WriteLine("Hello, world!"); ` *>V6B3
} -G8c5b[
;KZrl`
~_'0]P\
C# (C Sharp) Hl4\M]]/&
class HelloWorldApp sT)6nV
{ 92!JKZe
public static void Main() Z`rK\Bc
{ %moJF1
System.Console.WriteLine("Hello, world!"); V/J>GRjw
} =g@R%NDNV
} 4py(R-8\
fGb7=Fk
4_tR9 w"
COBOL XdcG0D^
IDENTIFICATION DIVISION. SC'BmR"ox
PROGRAM-ID. HELLO-WORLD. 8)sg_JC
QjLji+L
ENVIRONMENT DIVISION. 7U,k 2LS
8 4z6zFv?Q
DATA DIVISION. R8tF/dx>7
qh-[L
PROCEDURE DIVISION. CD} Ns
DISPLAY "Hello, world!". ~wTX>qV
STOP RUN. Kh)FyV
k5a\Sq}
U h.Sc:trA
Common Lisp Yj3 P 7k$c
(format t "Hello world!~%") @44P4?;
@F?=a*s"!
1i
u =Y
DOS批处理 R*yU<9Mm8
@echo off 7IW> >RBF
echo "Hello, world!" 1~'_K9eE
]M3#3Ha"
`@|w>8bMz{
Eiffel -l
"U"U"F
class HELLO_WORLD ,-@5NY1q
IZ 8y}2
creation RlsVC_H\
make _UkmYZ/
feature cn%2OP:L^
make is G
AQ
'Ti1!
local #.<V^
io:BASIC_IO ~GG?GB
do ^mg*;8eGa
!!io yG&2UqX
io.put_string("%N Hello, world!") cx^{/U?9}
end -- make ,)h)5o(?
end -- class HELLO_WORLD Fc8E Y*
]>Si0%
.+E#q&=
Erlang .
uR M{Bs
-module(hello). z/1{OL
-export([hello_world/0]). We}lx{E
'# z]M
hello_world() -> io:fwrite("Hello, World!\n"). py<_HyJ
H\G{3.T.9
=mt?Cn}
Forth 2x}6\t
." Hello, world!" CR B)=~8wsI:Z
' UMFS
TKI$hc3|L
Fortran sbsu(Sz+
WRITE(*,10) Un@\kAY
10 FORMAT('Hello, World!') 3h=8"lRc
STOP Z<z;L<tJ 9
END d'HOpJE
RA/EpD:H
1B:aC|B
HTML LAs7>hM
<HTML> TZB+lj1
<HEAD> F=wRkU
<TITLE> Hello World! </TITLE> Tz-X o
</HEAD> QT!5l`
<BODY> LtKB v4
<p>Hello World!</p> m *X7T
</BODY> }E&NPp>
</HTML> T] | d5E
1;r69e
'Cg{_z.~c
HQ9+ )iLM]m
H Kn}ub+
"J
^PqF<d6
gA^q^>7
INTERCAL 9y] J/1#
PLEASE DO ,1 <- #13 =xl~][
DO ,1 SUB #1 <- #238 T{Zwm!s
DO ,1 SUB #2 <- #112 Wk7WK` >i
DO ,1 SUB #3 <- #112 Ill[]O
DO ,1 SUB #4 <- #0 ST',4Oph5
DO ,1 SUB #5 <- #64 O.+9,4A(
DO ,1 SUB #6 <- #238 X[hM8G
DO ,1 SUB #7 <- #26 x0+glQrNN
DO ,1 SUB #8 <- #248 pj{\T?(
DO ,1 SUB #9 <- #168 v,1F--v
DO ,1 SUB #10 <- #24 B;t=B_oK
DO ,1 SUB #11 <- #16 l(kr'x
DO ,1 SUB #12 <- #158 u<Xog$esu
DO ,1 SUB #13 <- #52 8tc*.H{^+
PLEASE READ OUT ,1 ?y%t}C\W
PLEASE GIVE UP :L$4*8@`+
$k0H9_
&O1v,$}'
Java GESXc$E8
public class Hello N6/T#UVns
{ h4`9Cfrq ,
public static void main(String[] args) a(x?fa[D
{ WH$HI/%*m
System.out.println("Hello, world!"); t_c?Wp~tH
} 1y[B[\
} AU{:;%.g
bLS&H[fK
bhg}-dto
JSP 8vD3=yK%^
<% j%tEZ"H
out.print("Hello, world!"); R@`rT*lJ
%>
*4yN3y
n["
9|
h)dRR_
MIXAL 9([6d.`~
TERM EQU 19 the MIX console device number b X,Siz:F
ORIG 1000 start address kC$I2[ t!
START OUT MSG(TERM) output data at address MSG t4K56H.L?
HLT halt execution d-$_|G+
MSG ALF "MIXAL" <r\I"z$
ALF " HELL" 1f//wk|
ALF "O WOR" 3H8Al
ALF "LD " ! D1zXXq
END START end of the program c> ~:dcy
@ss):FwA
8pe0$r`b
Nuva EXbTCT}`x
<..直接输出..> 3|eUy_d3
Hello, world! |]ucHV
_s>^?x}
<..或者..> =cp;Q,t'9L
>oY^Gx
<. *cNk>y
// 不带换行 p24.bLr
? "Hello, world!" A,<@m2
-!R
l(if
// 或者 vLn> 4SK
e,Zv]Cym
// 带换行 FfYsSq2l
?? 'Hello, world!' cU | _
.> x[Q&k[xV
Oz>io\P94
zoXuFg
OCaml sU%"azc
let main () = #313
(PWH
print_endline "Hello world!";; az
bUc4M
4
Pd],}/ZG-
Pascal 0O;
Z
program Hello; Cyf]`*
begin <2)v9c
writeln('Hello, world!'); `~E<Sf<M
end. Q)dT(Td9~
C->[$HcRa
Tw}z7U"
Perl Y[,U_GX/R
#!/usr/local/bin/perl +/_!P;I
print "Hello, world!\n"; h@Dw'w
SyB-iQn
\S5V}!_
PHP B>aEHb
<?php ~ i'C/[P
print("Hello, world!"); c}\
d5R_L
?> +1f{_v
9BurjG1k?
't ;/,+:V
Pike oHRbAE^
#!/usr/local/bin/pike >rRjm+vg
int main() T-!|l7V~f
{ bY&YSlO
write("Hello, world!\n"); yEnKUo[
return 0; 7t+]z)
} /Sh4pu"'
LA>dkPB
5?)}F/x
PL/I Qvs(Rt3?y
Test: procedure options(main); yT 2vO_rH
declare My_String char(20) varying initialize('Hello, world!'); 6yi/YM
put skip list(My_String); -MsuBf
end Test; #Z#_!o
N6f%>3%1|.
ap{{(y&R
Prolog 2/UI>@By
goal l.yJA>\24I
write("hello,world!"). Mj,2\ijNM
c|3h|
}v,W-gA
Python }%
FDm@+
#!/usr/local/bin/python kKNk2!z`M
print "Hello, world!" JO]`LF]
18J.vcP
b^@`uDb6
REXX }NR`81
say "Hello, world!" Py}!C@e
k_-vT
~7KynE
Ruby gE-lM/w
#!/usr/bin/ruby ]5aux
>.n
print "Hello, world!\n" |~Htj4K/
]i9H_K
p]X!g
Scheme *_}IeNc
(display "Hello, world!") _+0uju?o}
(newline) 1"*Nb5s
)^V5*#69D
5EVB27k
sed (需要至少一行输入) 6:8EZ'y
sed -ne '1s/.*/Hello, world!/p' -fx(H+
'33Yl+h
ZA 99vO
Smalltalk 7"h=MB_
Transcript show: 'Hello, world!' p
P_wBX
5)/4)0
g: H[#I
SNOBOL ZlwcwoPib
OUTPUT = "Hello, world!" qP%Smfp6
END vV\/pu8
PaU@T! v
?];~N5<'
SQL eB} sg4
create table MESSAGE (TEXT char(15)); uL qpbn
insert into MESSAGE (TEXT) values ('Hello, world!'); n57c^/A*
select TEXT from MESSAGE;
4#'^\5
drop table MESSAGE; ;$k?&nhY
*NX*/(Q
&</@0
Tcl reD[j,i&t.
#!/usr/local/bin/tcl q=j/s4~
puts "Hello, world!" Nys'4kx7
q]wn:%rX
iZVT% A+q
TScript [|P]St-
? "Hello, world!" ?U2g8D nFY
U:T5o]P<
yA`]%U((
Turing "O"^\f
put "Hello, world!"
^.><t+tM
z!uB&2C{k
r4z}yt+
UNIX-style shell F".IB^}$
程序中的/bin/sh可改为您使用的shell ]pucv!
y:(C=*^<t
#!/bin/sh B@~eBU,$
echo 'Hello, world!' S+bWD7
[fJFH^&?hr
1 _:1/~R1
GUI "}y3@ M^
tz \:r>3vI
Delphi pdXgr)Uv
program HelloWorld; ?X5glDZ$
uses e]L3=R;
Dialogs; *U[Q =w
begin nms<6kfzL
ShowMessage('Hello, World!'); +~v3D^L15
end. ct4)faM
f<t*#]<