“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。 8 QI+O`
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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》。 @|OGxQoC
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以下是用不同语言写成的Hello World程序的几个例子: q 4Ok$~"I
Ada }h3[QUVf%
with Ada.Text_Io; use Ada.Text_Io; jsKKg^g
procedure Hello is I.SMn,N
begin GFnwj<V+{
Put_Line ("Hello, world!"); &a\G,Ma
end Hello; :Z83*SPc
u2I@ fH/
a|]}uFr
汇编语言 D&],.N
E=,fdyj.
x86 CPU,DOS,TASM P/k#([:2
MODEL SMALL G \$x.
IDEAL =4!m]*y
STACK 100H ^0I"
fX1Ib$v
DATASEG `:0Auw9h
HW DB 'Hello, world!$' C8(0|XX
"0z4mQ}>N
CODESEG XN3'k[
MOV AX, @data 9%MgA ik(
MOV DS, AX $}0\sj%
MOV DX, OFFSET HW nVP|{M
MOV AH, 09H Udjn.D
INT 21H jG#e%`'
MOV AX, 4C00H gS|6,A9
INT 21H /}eb1o
END $o)}@TC
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#B_H/9f(
x86 CPU,GNU/Linux,NASM H5jk#^FD
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). LW!4KA]
;Enter this into "hello.asm" then type: yhnPS4DC
;"nasm -f elf hello.asm" x69RQ+Vw
;"ld hello.o -o hello" l @E
{K|
;"./hello" br?pfs$U
f&Juq8s_0
section .data ;data section declaration lXVh`+X/l
msg db 'Hello World!',0AH M%$-c3x
len equ $-msg ;string length B_3N:K Y
9
PT4iy<
section .text ;code section declaration '@^mesMG
global _start ;entry point (start of execution) \r3SvBwhFv
_start: mov edx,len ;string length diKl}V#u
mov ecx,msg ;string start q$<VLrx
mov ebx,1 ;file handle: stdout "5\6`\/
mov eax,4 ;sys_write }/L#<n`Z
int 80h ;kernel system call *A0d0M]cg
R|*Eg,1g -
mov ebx,0 ;return value IfP?+yPa
mov eax,1 ;sys_exit
C +Wa(K
int 80h ;kernel system call 6r h#ATep
x-q_sZ^8
+7y#c20
x86 CPU,Windows,MASM32 &IG*;$c!
.386 ,OMdLXr
.model flat,stdcall ?MSV3uODb
option casemap:none Jgq#m~M6
;Include 文件定义 1T4#+kW&
include windows.inc b
|ijkys
include user32.inc rWN%j)#+
includelib user32.lib VwLo
include kernel32.inc )3 '8T>^<K
includelib kernel32.lib -O $!sFmY
;数据段 *3fhVl=8^*
.data CX]L'
szCaption db 'A MessageBox!',0 gL7rX a j
szText db 'Hello,world!',0 7oCY@>(f
;代码段 z)u\(W*\iA
.code 8rLhOA
start: 6R#igLm
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK [z'jL'\4
invoke ExitProcess,NULL rX?%{M,xFw
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ]r\!Z
<<(
end start '*G8;91u
JL7;l0#
+Ur75YPh
AWK fBBtS S
BEGIN { print "Hello, world!" } o"p['m*g
nIfp0U*
Jpn= ^f[rm
BASIC 8RcLs1n/
传统版BASIC(例如GWBASIC): J(9{P/
g$JlpD&
10 PRINT "Hello, world!" dleCh+ny?
20 END T^#d\2
R I:kp.V
或在提示符输入: }LoMS<O-[
34J*<B[Njo
?"Hello, world!":END 0~Xt_rN](
l,UOP[j
现代版BASIC(例如Quick BASIC): zNg[%{mz
~,x4cOdR#
Print "Hello, world!" okO\A^F
]\/"-Y#4Q
以下的语句在Quick BASIC中同样有效: 3sl6$NKo
9&Z+K'$=
? "Hello,world!" `yC[Fn"E^
HNLr}
Y j
~1nKL0C6u
BCPL FyNm1QNy^
GET "LIBHDR" D&OskM60
({cWb:+r
LET START () BE D"IxQ2}k
$( )OK"H^}f
WRITES ("Hello, world!*N") h%sw^;\!
$) 0y2zjXM;3
I*n]8c
Qve5qJ
Befunge hG272s 2
"!dlrow olleH">v \:2z!\iP`
, tY#Zl 54~{
^_@ `w)yR>lqh
<s$Jj><
j_z@VT}y
Brainfuck E,Xl8rC
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< jrX`_Y
+++++++++++++++.>.+++.------.--------.>+.>. XR$i:kL,,
=o'g5Be<F
b)r;a5"<5
C lWBewnLKE
#include <stdio.h> LyG`q3@
lcVG<*gf-
int main(void) $v5 >6+-n
{ ~JP3C5q
printf("Hello, world!\n"); *]!rT&E
return 0; .fS{j$
} {YwdhwJP
a;\a>N4
6NSSuK3
C++ .eyJ<b9
#include <iostream> f*VXg[&\\F
C 1)+^{7ef
int main() 2#s8Dxt
{ $UpWlYwG
std::cout << "Hello, world!" << std::endl; aq#F
return 0; 0IBQE
} UUF]45t>
S WyJ`
SH O&:2
C++/CLI ~(:0&w%e
int main() ,R=$qi|
{ ~g;)8X;;+
System::Console::WriteLine("Hello, world!"); 1-Dw-./N
}
3\cx(
CZ
=]0zB
T# gx2Y
C# (C Sharp) Vt:\llsin
class HelloWorldApp
qq@]xdl
{ mE&SAm5#d
public static void Main() +Eel|)Z*Q
{ G2b"R{i/,
System.Console.WriteLine("Hello, world!"); Bm<tCN-4
} qx*N-,M%k(
} s+E4AG1r
ubc
k{\.
4M+f#b1
COBOL sejT] rJ
IDENTIFICATION DIVISION. 6P)D M
PROGRAM-ID. HELLO-WORLD. ,k(B>O ~o
fUZCP*7>
ENVIRONMENT DIVISION. _rz\[{)
mP?}h
DATA DIVISION. QSwT1P'U
;vn0b"Fi3
PROCEDURE DIVISION. $x#qv1
DISPLAY "Hello, world!". 9D;ono3
STOP RUN. *:`fgaIDa
Nnoj6+b
-OnKvpeI
Common Lisp wNUcL*n
(format t "Hello world!~%") d@zxgn7o
Yu9VtC1
XinKG<3!
DOS批处理 $4og{
@echo off <N3~X,ch
echo "Hello, world!" V}Oz!
O
KIKIag#
^==Tv+T9U
Eiffel JOs
kf(
class HELLO_WORLD {wO.nOB
rd"!&i
creation j HObWUX
make B[2t.d;h
feature N
x^JC_
make is E,ooD3$h
local i+lq:St
io:BASIC_IO G;USVF-'K
do 0T0I<t
!!io K1-RJj\L
io.put_string("%N Hello, world!") i~*6JB|
end -- make ,mz7!c9H^a
end -- class HELLO_WORLD "hZ `^"0b
9NZq
k
$_e{Zv[
Erlang ]/AU_&
-module(hello). kV3LFPf>0
-export([hello_world/0]). , 10+Sh
iTF%}(
hello_world() -> io:fwrite("Hello, World!\n"). yA7O<p+
\Rha7O
a
FWTm,)
Forth ::3[H$
." Hello, world!" CR >)mF'w
KvI/!hl\
"cbJ{ G1pk
Fortran ^PMA"!n8
WRITE(*,10) 8v)HTD/C
10 FORMAT('Hello, World!')
0BAZWm
STOP _T=";NSa
END `wSoa#U"@
^E%NYq_2l<
mM_gOd
HTML H)y_[:[
<HTML> Z+4Mo*#
<HEAD> +?5Vuc%
<TITLE> Hello World! </TITLE> uVXn/B
</HEAD> vY[u;VU
<BODY> %f(4jQ0I
<p>Hello World!</p> _ -,[U{
</BODY> e$mVA}>Ybp
</HTML> MR,A{X
YeB C6`7y
{yi!vw
HQ9+ #kJ8 qN
H O.aAa5^uh
,V&E"D{u
x/0x&la
INTERCAL z_8Bl2tl
PLEASE DO ,1 <- #13 =CL,+
DO ,1 SUB #1 <- #238 psS^
DO ,1 SUB #2 <- #112 $-E<{
DO ,1 SUB #3 <- #112 "'>fTk_
DO ,1 SUB #4 <- #0 r8A'8g4cM
DO ,1 SUB #5 <- #64 FtWO[*#
DO ,1 SUB #6 <- #238 rAgp cp}
DO ,1 SUB #7 <- #26 e0#{'_C
DO ,1 SUB #8 <- #248 DnN+W
DO ,1 SUB #9 <- #168 "k),;1
DO ,1 SUB #10 <- #24 j}8^gz]
DO ,1 SUB #11 <- #16 }Fu2%L>
DO ,1 SUB #12 <- #158 t=[/L]!
DO ,1 SUB #13 <- #52 YG>Eop
PLEASE READ OUT ,1 RaC6RH
PLEASE GIVE UP D^{jXNDNO
>as+#rz1p
[y<s]C6E
Java <FN+
public class Hello ](IOn:MuDE
{ #!rH}A>n+
public static void main(String[] args) |6`7kb;p
{ h5^We"}+
System.out.println("Hello, world!"); Q"qJ0f)
} jank<Q&w
} F[fs^Q6S$
h@s i)5"
J,=^'K(
JSP +ERuZc$3,
<% paxZlA
o
out.print("Hello, world!"); #EH\Q%
%> TI8EW
0bGQO&s
[
C{6m?6
MIXAL swhtlc@@
TERM EQU 19 the MIX console device number CT|H1Ry2T
ORIG 1000 start address !Z; Nv
START OUT MSG(TERM) output data at address MSG x+1-^XvK
HLT halt execution LC0-O1
MSG ALF "MIXAL" |J^I8gx+
ALF " HELL" nH[>Sff$
ALF "O WOR" HaOSFltf#
ALF "LD " Qk^}
END START end of the program ork{a.1-_w
2$gFiZ
t"6u
Nuva AP?m,nd6
<..直接输出..> ?W&ajH_T
Hello, world! e"2x!(&n(
u5,vchZ
<..或者..> d-]!aFj|U
b_@bS<wsF}
<. F<,"{L
// 不带换行 t9_&n.z
? "Hello, world!" C Y)[{r
EhN@;D+
// 或者 L_IvR 4:j~
>lugHF$G
// 带换行 X`I=Z ysB
?? 'Hello, world!' |@)jS.Bn
.> {_4zm&
o7AI
`1R[J4e
OCaml +ZRm1q
let main () = o:Tpd 0F
print_endline "Hello world!";; _^^5
6V1
Z(K
}oii|=,#^
Pascal
y $L&N0z
program Hello; jgw+c3^R_
begin k6_OP]
writeln('Hello, world!'); ITjg]taD
end. "%=K_WJ?
4o@^._-R
yLt>OA<X
Perl VO*fC
#!/usr/local/bin/perl ]Vf2Mn=]"
print "Hello, world!\n"; SLud}|f;o
9cMMkOM J
(HeIO
PHP :NWrbfz
<?php 83{v_M
print("Hello, world!"); @OC*:?!4
?> /?6
;7!u(XzN
T{ /\q 5
Pike zc>LwX}<
#!/usr/local/bin/pike m] @o1J
int main() TI3@/SB>
{ Q!W+vh
write("Hello, world!\n"); =5h,ZB2A
return 0; M,P:<-J
} hQDl&A
R"QWap}
f<@`{oP@
PL/I $`/F5R!
Test: procedure options(main); jt&rOPL7
declare My_String char(20) varying initialize('Hello, world!'); 4eS(dPI0
put skip list(My_String); L4Si0 K
end Test; |C\XU5}
QWK\6
}h\]0'S~J~
Prolog 4&E&{<;
goal @]%cUjQ
write("hello,world!"). =,LhMy
`Zz;[<*<
:D=y<n;S+
Python _ud!:q
#!/usr/local/bin/python Eb\SK"8
print "Hello, world!" IN!IjInaT@
Je~<2EsQ
b#_u.vP
REXX +*$@ K'VL
say "Hello, world!" Y;q['h
z%L\EP;o}
1=Q3WMT
Ruby IZ+ZIR@}ci
#!/usr/bin/ruby {>>Gc2UT
print "Hello, world!\n" x% Eu.jj
p87VJ}
<(2,@_~@r
Scheme 'FGf#l<
(display "Hello, world!") 8x<; AL|`
(newline) |'12Kv]#Xa
</7?puVR
0'^zIL#.
sed (需要至少一行输入) [moz{Y
sed -ne '1s/.*/Hello, world!/p' ILXV yU
GvD{ I;
1;y?!;FD
Smalltalk OW8"7*irT
Transcript show: 'Hello, world!' ?rv5Z^D'
9vz"rHV
~ny4Ay$#
SNOBOL EX,)MU
OUTPUT = "Hello, world!" Kyq/o-
END ik|iAWy
'B$qq[l]S
E.OL_ \
SQL n/-d56
create table MESSAGE (TEXT char(15)); KdkZ-.
insert into MESSAGE (TEXT) values ('Hello, world!'); )I9W a*I
select TEXT from MESSAGE; x-ShY&k
drop table MESSAGE; `$N AK
%$I@7Es>
M}tr*L
Tcl HESORa;
#!/usr/local/bin/tcl ?W4IAbT\G
puts "Hello, world!" ?3:xR_VWZu
A!j6JY.w
@-Js)zcl q
TScript Q[N6# C:(4
? "Hello, world!" HX:rVHY
fo30f=^Gi
^3
'7
Turing r(QjVLjj`k
put "Hello, world!" 1]vrpJw
AT4G]pT
[]rg'9B2b
UNIX-style shell 6Q.6
程序中的/bin/sh可改为您使用的shell 3mnq=.<(w
Lg[_9`\
#!/bin/sh Ou<Vg\Mu
echo 'Hello, world!' amK.H"
+TnRuehtk
4^mpQ.]lO
GUI ~L.)<{?
8'B
Delphi m# ]VdO'f
program HelloWorld; ,#PeK(
uses EJrn4QOs
Dialogs; ^gpswhp
5
begin wZA(><\
ShowMessage('Hello, World!'); g&30@D"
end. GX+o A]
>}~Pu|
_S
_ ecKX</Q
Nuva MR@*09zP(?
<. x;cjl6Acm
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ytX XZ`
.> \*0ow`|K
$6a55~h|(
p9[J9D3~
Visual Basic [C]u!\(IF
MsgBox "Hello, world!" 5!T\L~tyt
'或者 U[b$VZ}
Print "Hello, world!" B|-E3v:f4
1}{bHj
n)(E 0h
Visual FoxPro ZCZY gf@
? "Hello, world!" !dVth)UV
V3'QA1$
|7V:~MTkk&
X11 +IiL(\ew
用一个程序 $~<);dYu0
-o\r]24
xmessage 'Hello, world!' zice0({iJ
\h DH81L
用C++和gtkmm 2 6Hz45
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