“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。 we&D"V
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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》。 Gc,6;!+(
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以下是用不同语言写成的Hello World程序的几个例子: iCIU'yI
Ada Ye]-RN/W
with Ada.Text_Io; use Ada.Text_Io;
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procedure Hello is %_.
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begin %4^NX@1jV
Put_Line ("Hello, world!"); |3P dlIbO
end Hello; 'mYUAVmSC#
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;!pSYcT,
汇编语言 3A!Qu$r9
TrR=3_;.7
x86 CPU,DOS,TASM O#n=mJ
MODEL SMALL dM)x|b3z
IDEAL ;5&=I|xqe
STACK 100H S+7u,%n/
Z3 O_K
DATASEG Lq]t6o]
HW DB 'Hello, world!$' LO@o`JF
bzyy;`;6Q~
CODESEG 6<Txkk
MOV AX, @data ]S7>=S
MOV DS, AX NudY9~
MOV DX, OFFSET HW yn|U<Hxl~H
MOV AH, 09H @M!nAQ8hY
INT 21H @&f~#Xe
MOV AX, 4C00H E-v^eMWX
INT 21H IN?6~O
p
END ~nRbb;M
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x86 CPU,GNU/Linux,NASM SQ-CdpT<
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). :0'vz M
;Enter this into "hello.asm" then type: #tN!^LLi
;"nasm -f elf hello.asm" 8;$zD]{D1
;"ld hello.o -o hello" B\\M%!a>
;"./hello" O&evv8 6L
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section .data ;data section declaration COH9E\ZGF
msg db 'Hello World!',0AH o?/fObV@(
len equ $-msg ;string length zbAyYMtEk
Mz: "p.
section .text ;code section declaration S!8q>d,%L
global _start ;entry point (start of execution) |-`-zo4z
_start: mov edx,len ;string length j2s{rQQ
mov ecx,msg ;string start eOZ"kw"uHu
mov ebx,1 ;file handle: stdout _j2q
mov eax,4 ;sys_write JYrOE"!h
int 80h ;kernel system call HQGH7<=Om
TT^L)d
mov ebx,0 ;return value KJi8LM
mov eax,1 ;sys_exit \[L|
int 80h ;kernel system call "L+NN|
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#L+ZHs~
x86 CPU,Windows,MASM32 "{x+ \Z\
.386 @*=eqO
.model flat,stdcall (05a9
option casemap:none gB])@O%/
;Include 文件定义 qo7jrY5G
include windows.inc 6r)B|~,OA
include user32.inc yX%NFXD
includelib user32.lib ( "wmc"qH
include kernel32.inc zxC~a97`
includelib kernel32.lib C&f{LpB`
;数据段 OZ4% 6/
.data oT i$@q
szCaption db 'A MessageBox!',0 U*\1d
szText db 'Hello,world!',0 Zp+orc7
;代码段 Cuc+9
.code }BAe
start: C4K"eX,K
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK V-ONC
invoke ExitProcess,NULL ;^ff35EE8
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I[KAW"
end start juB /?'$~
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AWK z_%}F':
BEGIN { print "Hello, world!" } /mwsF]Y
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KJW^pAj$B
BASIC jdd3[
传统版BASIC(例如GWBASIC): A'suZpL
/X;!
F>
10 PRINT "Hello, world!" 7ZFd;-
20 END m%U$37A1
x,Z:12H0
或在提示符输入: zO((FQ
ZJV;&[$[
?"Hello, world!":END +\RviF[+
ql7N\COoq
现代版BASIC(例如Quick BASIC): t;W'<.m_
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Print "Hello, world!" 3u oIYY
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以下的语句在Quick BASIC中同样有效: I@ D<rjR
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? "Hello,world!" V3$zlzSm,
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BCPL WD|pG;Gq
GET "LIBHDR" X4/3vY
Kza5_7p`L
LET START () BE _uZVlu@
$( {cmV{ 4Yx
WRITES ("Hello, world!*N") \Wb3JQ)
$) __i))2
(t"e#b(:
f<vZ4 IU
Befunge :8Ugz ~i
"!dlrow olleH">v m0 ]Lc{
, 1 Ay.^f
^_@ KNSMx<GP
; Z2
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Brainfuck ,EH^3ODD
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< /U=?D(>x
+++++++++++++++.>.+++.------.--------.>+.>. */j[n$K>~`
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BP=<TRp.
C .2SD)<}(9
#include <stdio.h> aPHNX)
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int main(void) c. uD%
{ xd!GRJ<I
printf("Hello, world!\n"); 7o9[cq w
return 0; m 3Do+!M[
} ese?;1r
1WAps#b.
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C++ )OZ
#include <iostream> w%~Mg3|
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int main() wcL|{rUXba
{ n8o(>?Kw
std::cout << "Hello, world!" << std::endl; e84O
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return 0; y)T|1)
} B1o*phM
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C++/CLI oA4<AJ2
int main() 1(qL),F;
{ ap[Q'=A`
System::Console::WriteLine("Hello, world!"); >Dq&[9,8
} JxQGL{)
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zRgl`zREr
C# (C Sharp) Z(BZGO<
class HelloWorldApp aA-s{af
{ LuWY}ste
public static void Main() t{O2JF#5u
{ J"Nn.iVq
System.Console.WriteLine("Hello, world!"); #4F0o@Z
} %
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} d>Ky(wS
B+[L/C}=;
v8\pOI}c
COBOL K&up1nZ@(
IDENTIFICATION DIVISION. h%! ,|[|
PROGRAM-ID. HELLO-WORLD. ~/;shs<9EM
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ENVIRONMENT DIVISION. #./8inbG
}M &hcw<
DATA DIVISION. 1
Lz
Y"E*#1/
PROCEDURE DIVISION. ,ZvlKN
DISPLAY "Hello, world!". _nec6=S6(
STOP RUN.
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wcW}Sv[r
]
jycg@=B
Common Lisp vzZ"TSP
(format t "Hello world!~%") 6 IKi*}
I~25}(IDZ"
]_2<uK}fg
DOS批处理 "*N]Y^6/A
@echo off 6QNO#!;
echo "Hello, world!" %=5 m!"F
:7pt=IA
>H,PST
Eiffel *[tLwl.
class HELLO_WORLD Q=#Wk$1.
*zWf8X
creation j4E`O%@^
make #XeabcOQ
feature LR
y&/d
make is 0yL%Pjn6
local #w;%{C[D
io:BASIC_IO fU'[lZ
do B)s%B'
!!io :{~TG]4M
io.put_string("%N Hello, world!") <ugy-vSv
end -- make tFX!s;N[
end -- class HELLO_WORLD WP4"$W
,pa=OF
#A^(1
Erlang J;Eg"8x]
-module(hello). g>-u9%aa
-export([hello_world/0]). Yn8aTg[J
!6eF8T
hello_world() -> io:fwrite("Hello, World!\n"). KHoDD=O
"@rXN"4
m=%yZ2F;
Forth =5#sB*
." Hello, world!" CR 94L>%{59
mxl"Y&l2<
n4
J*04K
Fortran G/&Wc2k
WRITE(*,10) 6Wc.iomx8
10 FORMAT('Hello, World!') 90!67Ap`x
STOP -{eI6#z|\A
END lNB<_SO
xU'% 6/G
7DIFJJE'
HTML Mgg m~|9)
<HTML> ^qV6khg
<HEAD> ]/od p/jm
<TITLE> Hello World! </TITLE> MO_;8v~0
</HEAD> h2vD*W
<BODY> SaA-Krn
<p>Hello World!</p> |\SwZTr
</BODY> }&LLo
</HTML> ?V4bz2#!1O
<@+{EK'`q
~ P!%i9e_
HQ9+ 8Xz \,}$O
H
|:5[`
1D)=q^\I
?Z"<&tsZ
INTERCAL '<&rMn
PLEASE DO ,1 <- #13 p-B
|Gr|
DO ,1 SUB #1 <- #238 $'Qv
{
DO ,1 SUB #2 <- #112 <>fT_
DO ,1 SUB #3 <- #112
i>z {QE
DO ,1 SUB #4 <- #0 ^MUvd
DO ,1 SUB #5 <- #64 =X=m_\=~@
DO ,1 SUB #6 <- #238 e%JH q
DO ,1 SUB #7 <- #26 KNqs=:i
DO ,1 SUB #8 <- #248 X>ck.}F
DO ,1 SUB #9 <- #168 '%[r 9w
DO ,1 SUB #10 <- #24 EGK7)O'W
DO ,1 SUB #11 <- #16 Yk
yB
DO ,1 SUB #12 <- #158 "j?\Ze*
DO ,1 SUB #13 <- #52 Oi\,clR^[o
PLEASE READ OUT ,1 G*rlU
PLEASE GIVE UP 1g_Dkv|D
y!jq!faqt
D'oy%
1Q}
Java ZGQz@H5
public class Hello L] !M1\
{ vXeI)vFK
public static void main(String[] args) wak'L5GQE
{ E>k!d'+tb
System.out.println("Hello, world!"); *[b22a4H(
} .@3bz
} 9AHxa
Ae>:i7.V
x^/453Lk
JSP ?m dGMf)
<% 5ii:93Hlj
out.print("Hello, world!"); h"On9
%> ')1p
yo_;j@BGR
4,?ZNyl
MIXAL 3nX={72<b
TERM EQU 19 the MIX console device number -)p| i~j^A
ORIG 1000 start address ]rc=oP;
START OUT MSG(TERM) output data at address MSG '+E\-X
HLT halt execution 4'`y5E
MSG ALF "MIXAL" [K"&1h<>
ALF " HELL" 8d8GYTl b)
ALF "O WOR" KN"<f:u
ALF "LD " ZMmf!cKY:'
END START end of the program "E%3q 3|"l
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0'~Iv\s
Nuva !r`/vQ#
<..直接输出..> R]"3^k*
Hello, world! vJ0Zv>
n-
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<..或者..> s)j3+@:#
E*{_=pX
<. )1o<}7
// 不带换行 >IE`, fe
? "Hello, world!" do=s=&T
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// 或者 >PONu]^
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// 带换行 Ygfv?
?? 'Hello, world!' +~eybm;
.> n
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f%Vdao[
;B6m;[M+
OCaml Pm!/#PtX
let main () =
%)!b254
print_endline "Hello world!";; 1eMz"@Q9
>PoVK{&y
C!6d`|
Pascal RzN9pAe
program Hello; ?$Ii_.
begin f/{*v4!
writeln('Hello, world!'); A,]%*kg2
end. 6tv-PgZ
ioJr2wq6
W;!)Sj4<T!
Perl T9&bY>f?
#!/usr/local/bin/perl <}bF49z
print "Hello, world!\n"; ##|]el%Y
&~#y-o"
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PHP -9~WtTaV.H
<?php EN{o3@ O'
print("Hello, world!"); lq}g*ih
?> M*7:-Tb]C
HAc1w]{(
Bd>a"3fA
Pike ,BE4z2a
#!/usr/local/bin/pike %rq/jC
int main() =Bw2{]w
{ zt/N)5\V
write("Hello, world!\n"); 8N9X1Mb|
return 0; <U~at+M
} ?"L ^0%
`F4gal^ ^
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PL/I #D|n6[Y'.t
Test: procedure options(main); E>Lgf&R#W
declare My_String char(20) varying initialize('Hello, world!'); mk]8}+^.
put skip list(My_String); BSHtoD@e7
end Test; [LDY;k~5+
!FHm.E_>
c!dc`R
Prolog 0*XCAnJ^_
goal -mY,nMDb
write("hello,world!"). 7j8Ou3
-8m3L
@t4OpU<'*b
Python C9L_`[9DO
#!/usr/local/bin/python !i5~>p|4@
print "Hello, world!" MyaJhA6c
V3c7F4\
OS sYmF
REXX DZqY=Sze
say "Hello, world!" vfloha p
pgEDh^[MW
NGVl/Qd
Ruby VQl(5\6O
#!/usr/bin/ruby ,'&H`h54
print "Hello, world!\n" JUdQ Q
y87oW_"h
xj;V
Scheme OmLe+,7'
(display "Hello, world!") *:V+whBY
(newline) Z,7VOf6g
12HE=
4rrR;V"}
sed (需要至少一行输入) ]..7t|^b&
sed -ne '1s/.*/Hello, world!/p' 'mO>hD`V
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k
Js/QL=,
Smalltalk -T{G8@V0I
Transcript show: 'Hello, world!' "WZ |
Hp5.jor(k
3oBR
SNOBOL {.o@XP,.
OUTPUT = "Hello, world!" 3{9d5p|\i
END tQ(4UHqa~
v:?l C<,
ug^esB
SQL S<eB&qT$
create table MESSAGE (TEXT char(15)); 1:22y:^j
insert into MESSAGE (TEXT) values ('Hello, world!'); 52t6_!y+V
select TEXT from MESSAGE; *cAI gO7
drop table MESSAGE; RZP7h>y6@
Kjt\A]R%
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Tcl DT vCx6:!
#!/usr/local/bin/tcl #eIFRNRb)
puts "Hello, world!" r$W%d[pB
/X%+z5
OTzuOP8
TScript u7lO2C7
? "Hello, world!" k8 z1AP
-{A*`.[v
Z7p!YTA
Turing XeX`h_
put "Hello, world!" d
r$E:kr
Dvm[W),(k
|dhKeg_
UNIX-style shell W_lXY Z<
程序中的/bin/sh可改为您使用的shell N5. B"l
2]=`^rC*
#!/bin/sh n+ S&[Y
echo 'Hello, world!' `#"xgOSP>
v?0F
?z&5g-/b
GUI ^.PCQ~Ql
_{/[&vJ
Delphi G_<4% HM
program HelloWorld; 0+F--E4
uses !<?<f
db
Dialogs; <.&84c]/&
begin ?!y<%&U
ShowMessage('Hello, World!'); ;OZl'
. %`
end. \3`r/,wY
; Vpp1mk|
"3/&<0k
Nuva wKKQAM6P1
<. P1ak>T*#2
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 5bBCI\&sam
.> yxAy1P;dX
EB VG@
bvS6xU-
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Visual Basic 3~:9ZWQ/
MsgBox "Hello, world!" N-W>tng_x
'或者 H$.K
Print "Hello, world!" LVT:oIQ
Kc,i$FH
L~AU4Q0o
Visual FoxPro "SRS{-p0
? "Hello, world!" (eSsx/
")<5VtV
N(V_P[]"*,
X11 T^vhhfCUr
用一个程序 R3%%;` c=
Jj?HOtaM
xmessage 'Hello, world!' DLuaM?7
-iKoQkHt
用C++和gtkmm 2 yD#(Iw
t&