“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。 bf2n%-&9g
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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》。 M.MQ?`_"b
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以下是用不同语言写成的Hello World程序的几个例子: z2,NWmP|w
Ada $yj*n;
with Ada.Text_Io; use Ada.Text_Io; w ~crj$UM
procedure Hello is 8?kB+}@6X
begin 1pDU}rPJ.
Put_Line ("Hello, world!"); -X%twy=
end Hello; U"Bge\6x=
8,vP']4r%
C Q iHk
汇编语言 UukY9n];]
eX"Ecl{
x86 CPU,DOS,TASM z@\mn
MODEL SMALL pxedj
IDEAL =+T0[|gc(r
STACK 100H S[/udA
G"u4]!$/
DATASEG US9aW)8
HW DB 'Hello, world!$' x$ TLj
wG)[Ik6:
CODESEG g +gcH
MOV AX, @data
ip{b*@K
MOV DS, AX (yd(ZY
MOV DX, OFFSET HW p=x&X~
MOV AH, 09H /@&o%I3h
INT 21H :]Om4Q\-#
MOV AX, 4C00H =B;qy7?
INT 21H upk_;ae
END z~p!7q&g
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4,X CbcC
x86 CPU,GNU/Linux,NASM G^SJhdO(Q
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). >rP[Xox'
;Enter this into "hello.asm" then type: iS.gN&\z^
;"nasm -f elf hello.asm" 9yTkZ`M28
;"ld hello.o -o hello" =1|p$@L`%
;"./hello" 55<!H-zt
)*uo tV
section .data ;data section declaration ;WYzU`<g
msg db 'Hello World!',0AH #sjGju"#_
len equ $-msg ;string length $kmY[FWu?
l"X,[
section .text ;code section declaration &c&TQkx
global _start ;entry point (start of execution) D^F=:-l
m
_start: mov edx,len ;string length -OD&x%L*{3
mov ecx,msg ;string start `#`C.:/n
mov ebx,1 ;file handle: stdout ..'"kX:5
mov eax,4 ;sys_write eA
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int 80h ;kernel system call x]%,?Vd?
Gkfzb>_V]
mov ebx,0 ;return value ~/aCzx~
mov eax,1 ;sys_exit Oz]$zRu/0
int 80h ;kernel system call +CSR!
M($GZ~ b%A
v6uRzFw
x86 CPU,Windows,MASM32 0ZI}eZA j
.386 y>u|3:z
.model flat,stdcall 7!Im|7Ty
option casemap:none Em{;l:;(W
;Include 文件定义 W}zq9|p
include windows.inc 3?_%|;ga
include user32.inc 'BgR01w J
includelib user32.lib z/QYy)_j
include kernel32.inc i7 YUyU
includelib kernel32.lib OR|Jc+LT
;数据段 bi@'m?XwJ
.data -T+'3</T
szCaption db 'A MessageBox!',0 a7u*d`3X=
szText db 'Hello,world!',0 z}$.A9yn
;代码段 [GI2%uA0
.code sVmqx^-
start: *u,&?fCl
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK PGYx]r
invoke ExitProcess,NULL +tg${3ti_
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 6iEg]FI
end start @/$i
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JHZjf7g$k
Sz1 J4$5
AWK q?]KZ_a
BEGIN { print "Hello, world!" } aAn p7\7
017n hI
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BASIC 6jm/y@|F!
传统版BASIC(例如GWBASIC): u%"5<ll
;Kg7}4`I
10 PRINT "Hello, world!" -w)v38iX!
20 END /f+BeQ3#/
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或在提示符输入: pSYEC,0B
SsfC
m C
?"Hello, world!":END CMv8n@ry
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现代版BASIC(例如Quick BASIC): /"~UGn]R
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Print "Hello, world!" "<)Jso|
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以下的语句在Quick BASIC中同样有效: m&(qr5>b
v|]"uPxH?
? "Hello,world!" n8T'}d+mm
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m.yds
mC(YO y
BCPL ]\}MSo3
GET "LIBHDR" A
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(q}LirR
LET START () BE 01RW|rN
$( H}CmSo8&
WRITES ("Hello, world!*N") q68m*1?y
$) 7<B-2g
d:_;
AqaMi
Befunge (#z6w#CU(
"!dlrow olleH">v ^7;s4q
, $2}%3{<j
^_@ EUV8H}d5
&=:3/;c
ZYt <O
Brainfuck gMPp'^g]_
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< YZtd IG
+++++++++++++++.>.+++.------.--------.>+.>. uAoZ&8D6
@^g~F&Ta
H ="I=}
C in K;n
#include <stdio.h> tAY{+N]f
.EH1;/
int main(void) I6@"y0I
{ |~18MW
printf("Hello, world!\n"); AUIp
vd
return 0; WNKP';(a@G
} 8`]yp7ueS
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C++ ga S}>?qk
#include <iostream> \W=
qqE]
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int main() N&Ho$,2s
{ )t\aB_ =
std::cout << "Hello, world!" << std::endl; K"X"2c1o
return 0; M,bs`amz
} vEGI
9zIqSjos"
)1HWD]>4
C++/CLI WNQ<XBqAw
int main() CHD.b%_|
{ A&WC})H5
System::Console::WriteLine("Hello, world!"); `c-omNu
} 'ShK7j$
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ev_' .t'
C# (C Sharp) Q[|*P ] w
class HelloWorldApp H3ovF
{ $p$p C/:%
public static void Main() iJmzVR+
{ x.] tGS
System.Console.WriteLine("Hello, world!"); 8gt&*;'}*D
} ~mi4V
} '!,(G3
1v,R<1)&
y%kZ##
COBOL u3pFH(
IDENTIFICATION DIVISION. %NC/zqPH~
PROGRAM-ID. HELLO-WORLD. LGX+_"
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ENVIRONMENT DIVISION. |(PS
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DATA DIVISION. (hQi {
Z|ZB6gP>h1
PROCEDURE DIVISION. e+{lf*"3
DISPLAY "Hello, world!". =]/<Kd}A.
STOP RUN. j F/S2Ty2
0'YP9-C3
n5^57[(
Common Lisp #h4FLF_w
(format t "Hello world!~%") ]6A wd A
ZKpJc'h
('Uj|m}9
DOS批处理 t*)mX2R,
@echo off K4YD}[
echo "Hello, world!" 7v0AG:
=oI6yf&8 Z
n+YUG
Eiffel ecQ,DOX|b
class HELLO_WORLD 10OkrNQ
uKvdL
"
creation X;l/D},.
make kLU-4W5t
feature DrC"M*$!
make is ['sNk[-C
local N0vECk
io:BASIC_IO 9|v%bO
do }^p<Y5{b
!!io oM
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io.put_string("%N Hello, world!") |\G^:V[.
end -- make 1+XM1(|c`
end -- class HELLO_WORLD VY+P c/b
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nbf/WOCk
Erlang ]t`SCsoo
-module(hello). gTU5r4xm~
-export([hello_world/0]). ;B[(~LCyT
; D/6e6
hello_world() -> io:fwrite("Hello, World!\n"). dl6U]v=
p:W]
.jk
A'i@
Forth ;e/F( J
." Hello, world!" CR 18Z1F
}*xjO/Ey
"d0=uHd5\
Fortran ?# _{h
WRITE(*,10) nhjT2Sl
10 FORMAT('Hello, World!') C])s'XTs
STOP IOdxMzF`m
END C1UU v=|
ugE!EEy[^
ubOXEkZ8N
HTML 2{vAs
<HTML> [Z#Sj=z
<HEAD> "* F`,I3
<TITLE> Hello World! </TITLE> ~QxW^DGa7]
</HEAD> B%MdJD>
<BODY> pq&[cA_w
<p>Hello World!</p> K%x]:|,>M
</BODY> IM/xBP
</HTML> x-X~'p'f
BI %XF
9{
QeuM',6R
HQ9+ =|ODa/2p
H [3nWxFz$R
dr: x0>
Xo/H+[;X
INTERCAL cy;i1#1rO
PLEASE DO ,1 <- #13 vO~Tx
DO ,1 SUB #1 <- #238 CEc(2q+%i
DO ,1 SUB #2 <- #112 ]77f`<q<}!
DO ,1 SUB #3 <- #112 [WG\wj.
DO ,1 SUB #4 <- #0 *qk7e[IP
DO ,1 SUB #5 <- #64 liH#=C8l*%
DO ,1 SUB #6 <- #238 'Kbrz
DO ,1 SUB #7 <- #26 wL="p) TO.
DO ,1 SUB #8 <- #248 t&J A1|q
DO ,1 SUB #9 <- #168 QDJ
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DO ,1 SUB #10 <- #24
QSY>8P
DO ,1 SUB #11 <- #16 $/IFSB9
DO ,1 SUB #12 <- #158 +,LWyvc'
DO ,1 SUB #13 <- #52 4_U"M@
PLEASE READ OUT ,1 dgoAaS2M
PLEASE GIVE UP HdB>CVuh
W.jXO"pN
.O5V;&,
Java m:[I$b6AY
public class Hello p^<(.+P4
{ H)7v$A,5%
public static void main(String[] args) ID,_0b
{ 9,`i[Dzp
System.out.println("Hello, world!"); rVoV@,P
} T>rmm7F
} V@#oQi*
PDuBf&/e
%
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JSP ~o"=4q`>
<% 8{2
out.print("Hello, world!"); 3-{BXht)
%> 3c3;8h$k
'kcR:5B
aXJ/"k #Tl
MIXAL 6Jb0MX"AVr
TERM EQU 19 the MIX console device number A?!RF7v
ORIG 1000 start address 6{1=3.CL
START OUT MSG(TERM) output data at address MSG {> msE }L
HLT halt execution ; /K6U
MSG ALF "MIXAL" #YE?&5t
ALF " HELL" I@/
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ALF "O WOR" A`f"<W-m
ALF "LD " 8TeOh1\
END START end of the program F!ztU8,
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QDQ"Sc06
Nuva *kFd#b+xB
<..直接输出..> aPEI_P+Ls
Hello, world! )c' 45bD
\\KjiT'
<..或者..> NF6xKwRU]_
{Fw"y %a^
<. Si?s69
// 不带换行 /#M1J:SV
? "Hello, world!" CMW4Zqau*
P7XZ|Td4*
// 或者 v4"Ukv
C:t>u..
// 带换行 #[{{&sN
?? 'Hello, world!' EpMxq7*
.> rBTg"^jsw
X_o#!
nWIZ0Nde'
OCaml D`a6D
let main () = }]o8}$&(
print_endline "Hello world!";; Nbd4>M<
y&,|+h
'lA}E
Pascal ZPG,o5`%
program Hello; :.e'?a
begin
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writeln('Hello, world!'); U`qC.s(L
end. hFi gY\$m
bt) C+|i
U+x^!{[/
Perl ,X^3.ILz
#!/usr/local/bin/perl 8O'bCBhv
print "Hello, world!\n"; >80k5$t
3d6z_Yd:
ITw *m3
PHP W<X3!zuKSg
<?php )tI^2p{
print("Hello, world!"); &<98nT
?> V&nB*U&s"
SZ9Oz-?
:$b` n
Pike *zrGrk:l
#!/usr/local/bin/pike X+XDfEt:Q
int main() -K=.A*}
{ \DQu!l@1U
write("Hello, world!\n"); <
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return 0; 1 Q(KZI
} l2St)`K8
Z&Ob,Ru
1]Xx{j<
PL/I IAH"vHM
Test: procedure options(main); }S uj=oFp
declare My_String char(20) varying initialize('Hello, world!'); 8j#S+=l>
put skip list(My_String); Pl:4`oY3
end Test; M=Ze)X\E*'
U 3a2wK
=\%ER/
Prolog AyO%,6p[
goal i#*[,
P~
write("hello,world!"). uAA2G\3
b_~XTWP$l
`&D#P%
Python RBrb7D{
#!/usr/local/bin/python =Q(J!f
print "Hello, world!" !~vK[G(R
kFp^?+WI%H
c36p+6rJk=
REXX 'z"vk
say "Hello, world!" /Yy)=~t{
p [C
9g
5,gT|4|B\g
Ruby (& SU)Uvu
#!/usr/bin/ruby ~6t!)QATnp
print "Hello, world!\n" $vu*# .w
%jjPs.
e&z@yy$
Scheme 0! 3. .5==
(display "Hello, world!") T&'Jc
(newline) -H6[{WVW!
m~
ah!QM
bHG<B
sed (需要至少一行输入) v-z%3x.f
sed -ne '1s/.*/Hello, world!/p' Ih:Q}V#6
+;~o R_p
kku<0<(N
Smalltalk JI.=y5I
Transcript show: 'Hello, world!' _s5^\~ao
H}kZ;8
(s;W>,~q
SNOBOL U~][
ph
OUTPUT = "Hello, world!" Wm6qy6HR
END fG'~@'P~
^ 0YQlT98
>*{k~Y-G
SQL VBL4cU8D
create table MESSAGE (TEXT char(15)); wmGcXBHt$
insert into MESSAGE (TEXT) values ('Hello, world!'); T<0 r,
select TEXT from MESSAGE; HQP.7.w7 5
drop table MESSAGE; Li6|c*K'
=\.*CY|;N
xZ`z+)
Tcl V gMgeja
#!/usr/local/bin/tcl ]_h3
puts "Hello, world!" j2Dw7"f3
**h4M2'C
?) y}HF
TScript !4a fU:
? "Hello, world!" -NJpql{Cb
t/;0/ql\
|qMG@
Turing I #1~CbR
put "Hello, world!" i1uoYb?4(I
ni2#20L
:+/8n+@#
UNIX-style shell n!z!fh
程序中的/bin/sh可改为您使用的shell J1}\H$*X
7zH2dqrj
#!/bin/sh {d[Nc,AMb
echo 'Hello, world!' g}0K@z3
U&#`
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VP
A+/5TW
GUI 9\.0v{&v
eI:[o
Delphi ? #rXc%F
program HelloWorld; qhY+<S9
uses wL8ji>"
Dialogs;
$L= Dky7
begin `*vO8v
ShowMessage('Hello, World!'); l48$8Mgrr
end. 'UsR/h5T
@~$d4K
y<
>}* W$i
Nuva :o8`2Z *g
<. nz?[
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) xJ$uoy3+
.> zTcz+3x
veq3t$sj
A8&@Vxdz
Visual Basic Y|LL]@Lv
MsgBox "Hello, world!" k";dK*hD,
'或者 C!^A\T7p
Print "Hello, world!" MOQ6&C`7q
k3$'K}=d
,h o",y
Visual FoxPro g,\kLTg
? "Hello, world!" -]0:FKW
CBd%}il
&tZIWV1&
X11 16/ V5
用一个程序 06&;GW!-
\]<R`YMV
xmessage 'Hello, world!' h&j2mv(
DD=X{{;D\"
用C++和gtkmm 2 (
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#include <iostream> 5Hu[*
#include <gtkmm/main.h> anW['!T9{s
#include <gtkmm/button.h> 4nm.ea|
#include <gtkmm/window.h> ^rJTlh
9
using namespace std; &