“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。 ~n[d4qV&
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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》。 ktnuNsp
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以下是用不同语言写成的Hello World程序的几个例子: W-Fu -Cz=
Ada ZPc@Zr`z
with Ada.Text_Io; use Ada.Text_Io; Wf>zDW^"R
procedure Hello is :k7uGD
begin
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Put_Line ("Hello, world!"); ^BUYjq%(`
end Hello; c;{Q,"9U
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汇编语言 !(qsD+
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x86 CPU,DOS,TASM 6``'%S'#
MODEL SMALL df*5,NV'-*
IDEAL iQ4);du
STACK 100H H(2!1?N+
" .SJ~`S
DATASEG Wqc)Fv70m
HW DB 'Hello, world!$' _nD$b={g
FvN<<&B
CODESEG {D!6%`HKV+
MOV AX, @data Op"M.]#
MOV DS, AX ?gJOgsHJP
MOV DX, OFFSET HW \|]Z8t7
MOV AH, 09H uMut=ja(U
INT 21H DjI3?NN
MOV AX, 4C00H T(AVlI6
INT 21H S5KEXnjm
END hj
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jAy^J(+
x86 CPU,GNU/Linux,NASM ak->ML
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). z ?[r
;Enter this into "hello.asm" then type: BJgW,huLy
;"nasm -f elf hello.asm" }K1JU`Lz
;"ld hello.o -o hello" T|6jGZS^|W
;"./hello" {D?50Q
bKj%s@x
section .data ;data section declaration PlF87j (
msg db 'Hello World!',0AH 8i|w(5m;
len equ $-msg ;string length LUH"
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section .text ;code section declaration 3<k `+,'
global _start ;entry point (start of execution) u\LiSGePN
_start: mov edx,len ;string length fLDg~;3
mov ecx,msg ;string start 90|7ArM_[
mov ebx,1 ;file handle: stdout 6lkl7zm
mov eax,4 ;sys_write .fN"@l
int 80h ;kernel system call 8~9030>Q
@Ukr
mov ebx,0 ;return value <EPj$::
mov eax,1 ;sys_exit F6o_b4l
int 80h ;kernel system call uHH/rMV
%7#-%{
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x86 CPU,Windows,MASM32 xY+VyOUs
.386 XW -2~?$
.model flat,stdcall X/z6"*(|/
option casemap:none s7g(3<(
;Include 文件定义 ?pYKZg/c
include windows.inc ymegr(9&K
include user32.inc AZzuI*
includelib user32.lib nl(WJKq'
include kernel32.inc K+Z+wA?
includelib kernel32.lib )uK{uYQl
;数据段 CM<]ZG7
.data #
altx=6'
szCaption db 'A MessageBox!',0 >H(i^z/c
szText db 'Hello,world!',0 nB%;S
;代码段 4|mD*o
.code N;A@'
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start: d0aC Y
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK : p{+G
invoke ExitProcess,NULL @g2cC
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> %9k!A]KD
end start {cB+mh;mJ>
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AWK JYrY[',u
BEGIN { print "Hello, world!" } [q_`X~3
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BASIC ZA Jp%
传统版BASIC(例如GWBASIC): masT>vM
k% sO 0
10 PRINT "Hello, world!" ]W Zq^'q.
20 END y"6y!
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或在提示符输入: rC.eyq,105
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?"Hello, world!":END {NPuu?&
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现代版BASIC(例如Quick BASIC): 7]x3!AlV
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Print "Hello, world!" Rw6;Z
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以下的语句在Quick BASIC中同样有效: za:a)U^n
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? "Hello,world!" 2:BF[c`
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\k]x;S<a
BCPL B!dU>0&Ct
GET "LIBHDR" kloR#?8A
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LET START () BE V7Z4T6j4
$( o]ag"Q
WRITES ("Hello, world!*N") uGwJK`!~
$) ~_9n .C
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n:0}utU4
Befunge bn(`O1r[(
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, 2+cNo9f
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Brainfuck ed!:/+3e/
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< zF@o2<cD@
+++++++++++++++.>.+++.------.--------.>+.>. <W`#gn0b6
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C WpS1a440
#include <stdio.h> (faK+z,*6R
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int main(void) $B#6tk~u
{ Bd^"=+c4
printf("Hello, world!\n"); Fhv2V,nZ<
return 0; G/d4f?RU
} Q|,B*b
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C++ 2>]a)
#include <iostream> 6oinidB[l
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int main() F$Ca;cP"
{ c{>uqPTY
std::cout << "Hello, world!" << std::endl; /w8"=6Vv~
return 0; "c(Sysl.L
} &m {kHM
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C++/CLI 4"@GNk~e
int main() x lsqj`=
{ 4g}FB+[u
System::Console::WriteLine("Hello, world!"); R#n%cXc|
} R*zO
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C# (C Sharp) Um)>2|rp}
class HelloWorldApp uNHdpni
{ TZ;p0^(
public static void Main() !Y<oN~<%)
{ Uw/l>\
System.Console.WriteLine("Hello, world!"); vBvNu<v7te
} Olfn
} oyk>vIZ
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a`E*\O'd
COBOL _Cy:]2o
IDENTIFICATION DIVISION. v)f7};"z
PROGRAM-ID. HELLO-WORLD. `_5GG3@Ff
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ENVIRONMENT DIVISION. Eq^uKi
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DATA DIVISION. `W `0Fwu9
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PROCEDURE DIVISION. ?X9]HlH
DISPLAY "Hello, world!". Cs@ +r
STOP RUN. H@l}[hkP
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S'U@X
Common Lisp zSv^<`X3
(format t "Hello world!~%") pO~c<d}b
.>Z,uT^A
r7]"?#
DOS批处理 mxFn7.|r~
@echo off 1ndJ+H0H
echo "Hello, world!" w%c
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'PlaM Oy
Eiffel 4'Xgk8)
class HELLO_WORLD C;Ic
7OVbP%n)d2
creation I,ci >/+b
make _2hXa!yO
feature PfG`C5
d
make is ,WWj-X|+=
local ]lS@}W\
io:BASIC_IO Q0_>'sEM
do Ybg-"w
!!io YCy2 2@C
io.put_string("%N Hello, world!") PoShQR<
end -- make t~M
$%)h
end -- class HELLO_WORLD OQ4c#V?
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Erlang .G>t72DpU
-module(hello). =y%rG :!
-export([hello_world/0]). ] c}91
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hello_world() -> io:fwrite("Hello, World!\n"). 5IqQ |/m<6
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!q4x~G0d
Forth %do1i W
." Hello, world!" CR h4fLl3%H
\k.vN@K#
~ eN8|SR
Fortran V/"}ku
WRITE(*,10) /&Jv,[2kV
10 FORMAT('Hello, World!') z,*:x4}F
STOP ?M6ag_h3
END $E(XjuS
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9 1P4:6
HTML V*65b(q)
<HTML> AxCI 0
<HEAD> PI|`vC|yy&
<TITLE> Hello World! </TITLE> *]s&8/Gmb
</HEAD> ';RI7)<
<BODY> x:5dCI
<p>Hello World!</p>
?RD *1
</BODY> . p^xS6e{
</HTML> +=cam/A
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^[->
)
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H \gccQig1CJ
}fIqH4bp
;vO@m!h}U
INTERCAL /N^~U&7
PLEASE DO ,1 <- #13 'pP-rdx
DO ,1 SUB #1 <- #238 `1p 8C%
DO ,1 SUB #2 <- #112 tfiqr|z
DO ,1 SUB #3 <- #112 Rt=
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DO ,1 SUB #4 <- #0 J(h3]J/Yw
DO ,1 SUB #5 <- #64 zTCP)x
DO ,1 SUB #6 <- #238 D\]&8w6&
DO ,1 SUB #7 <- #26 FMu!z
DO ,1 SUB #8 <- #248 ;Gm>O7"|@
DO ,1 SUB #9 <- #168 r(uP!n1+
DO ,1 SUB #10 <- #24 (;6s)z
DO ,1 SUB #11 <- #16 <fM>Yi5
DO ,1 SUB #12 <- #158 ^Gz{6@TY5
DO ,1 SUB #13 <- #52 \~"#ld(x7
PLEASE READ OUT ,1 6w#nkF
PLEASE GIVE UP DBbc|I/[l
LXhaD[1Rb
Qp:6=o0:
Java PM~*|(fA
public class Hello ZTf_#eS$
{ 'M%5v'$y
public static void main(String[] args) dl[ob,aCK
{ boQ)fV"
System.out.println("Hello, world!"); rB]W,8~%
} R "E<8w
} sQk|I x
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=Nl5{qYz^&
JSP ~8Sqa%F>
<% k@qWig
out.print("Hello, world!"); B1w0cS%%:
%> !Q[}s#g
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bf98B4<
MIXAL -h\@RC
TERM EQU 19 the MIX console device number 'yT`ef
ORIG 1000 start address :{CFTc5:A
START OUT MSG(TERM) output data at address MSG ag]*DsBt
HLT halt execution \8_V(lU
MSG ALF "MIXAL" ABWb>EZ8
ALF " HELL" +rQg7a}
ALF "O WOR" URw!7bTz
ALF "LD " q0|ZoP
END START end of the program z<QIuq
SL*DK.
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Nuva /Nqrvy=
<..直接输出..> OLFt;h
Hello, world! ??TdrTS
</w7W3F
<..或者..> >)%#V<{<
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<. , ,{6m
d
// 不带换行 3L fTGO
? "Hello, world!" -><QFJ
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// 或者 ZKsQ2"8{M
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// 带换行 JTkCk~bX[z
?? 'Hello, world!' {F)E\)$G
.> )_pt*xo
x(yX0 ,P/7
B?TpBd
OCaml G"f du(.@
let main () = W%zmD Hk~
print_endline "Hello world!";; qj;l,Kua
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1HXlHic
Pascal )v-Cj_W5]"
program Hello; x#o?>5Qg?
begin ;E2~L
writeln('Hello, world!'); (.oaMA"B
end. [,\i[[<
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hwZ6.
Perl 5^o3y.J?P
#!/usr/local/bin/perl .r6YrB@['
print "Hello, world!\n"; vu>YH)N_h
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ox
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PHP |%3O)B
<?php hqWPf
print("Hello, world!"); ]g7HEB.Y
?> cCYl$Ms kZ
8 +L7E-
J2Y 3er
Pike xLLC)~
#!/usr/local/bin/pike ,?#*eJD
int main() FB.!`%{
{ ~\-r
write("Hello, world!\n");
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return 0; )j(fWshP
} B{N=0 cSi
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1O- E],
PL/I ^VC7C~NZ!M
Test: procedure options(main); ?bn;{c;E
declare My_String char(20) varying initialize('Hello, world!'); CElPU`J,\[
put skip list(My_String); &:C{/QnA
end Test; 3P3:F2S R
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y 2cL2c$BT
Prolog &,_?>.\[<
goal qU}lGf!dVn
write("hello,world!"). hQP6@KIe)
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`6n!$Cxo
Python qYDj*wqf
#!/usr/local/bin/python <XY;fhnB
print "Hello, world!" Iy6p>z|
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olHH9R9:
REXX c-ttds
say "Hello, world!" sio)_8tp
CF,8f$:2
/bu'6/!`
Ruby KuU3DTS85Z
#!/usr/bin/ruby .wM:YX'[G
print "Hello, world!\n" 65;|cmjv
4LJ]l:m
zuUQ."#i
Scheme A-X
(display "Hello, world!") Ny]'RS-
(newline) JO}#f+w}
f<) Ro$
(0X,Qwx
sed (需要至少一行输入) _+}-H'7=
sed -ne '1s/.*/Hello, world!/p' <!$dp9y.
'MSEki67
ze*&*csO
Smalltalk R Co eJ|
Transcript show: 'Hello, world!' d.LOyO
Dl>*L
%_]=i@Y~
SNOBOL 3$MYS^D
OUTPUT = "Hello, world!" j{-mQTSD
END **Qe`}E:
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M-}j9,oR`
SQL 7W6eiUI'
create table MESSAGE (TEXT char(15)); `4$4bXrP'
insert into MESSAGE (TEXT) values ('Hello, world!'); HKq2Js
select TEXT from MESSAGE; 97['VOh0
drop table MESSAGE; J(3gT}z-
T_(qN;_
Mp]yKl
Tcl 4jDs0Hn"
#!/usr/local/bin/tcl uWJ#+XK.
puts "Hello, world!" N8Rm})
L*kh?PS;
1}i&HIr!b
TScript oV%(
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? "Hello, world!" =) mXCA^
#Nu%]
:;" aUHU'
Turing Ib_n'$5#z
put "Hello, world!" #a|6Q 8
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UNIX-style shell HA$^ *qn
程序中的/bin/sh可改为您使用的shell zz7Y/653
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#!/bin/sh %RCl+hOP.h
echo 'Hello, world!' ]+^;vc 1r
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NqQM!B]
GUI ^8o_Iz)r,
2N8rM}?90
Delphi g:G%Ei~sF
program HelloWorld; &4w\6IR
uses V6DBKq
Dialogs; XgwMppacw
begin 6Tm
Rc
ShowMessage('Hello, World!'); \;3B?8wbIl
end. ;'2`M
w>`h3;,2
PfwI@%2
Nuva o(Ua",|
<. 2<46jJYL'
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) oTplxF1
.> ``2QOu 1
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Visual Basic r`&2-]
MsgBox "Hello, world!" h"RP>fZt
'或者 zIAu3
Print "Hello, world!"
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X/-
W8
fD3jwPL
Visual FoxPro ,ZzB#\
? "Hello, world!" )vEHLp.
I =tyQ`
=!pu+&I 9
X11 /pAm8vK
用一个程序 J1gEjd
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xmessage 'Hello, world!' =sUl`L+w,L
SIaUrC
用C++和gtkmm 2 '[M^f+H|
H|rX$P
#include <iostream> c {f:5 p
#include <gtkmm/main.h> v -|P_O&z