“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。
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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》。 %md9ou`
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以下是用不同语言写成的Hello World程序的几个例子: [a^<2V!vMn
Ada .Z 17X_
with Ada.Text_Io; use Ada.Text_Io; P=9sP:[f6
procedure Hello is DuQ:82 3b
begin <`A!9+
Put_Line ("Hello, world!"); FklO#+<:
end Hello; 8L@@UUjr
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汇编语言 "(+aWvb
yN#]Q}4
x86 CPU,DOS,TASM ]HG>Og
MODEL SMALL r9-)+R
J
IDEAL ZU9Rvtb KB
STACK 100H UyNP:q:
o3OJI_
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DATASEG "MOmJYH
HW DB 'Hello, world!$' <&t[E0mU
Tl^)O^/
CODESEG k@9q5lu;T
MOV AX, @data DsBZ%
MOV DS, AX z-S8s2.Fd
MOV DX, OFFSET HW JQ\o[t
MOV AH, 09H ?Y$3R"p@3`
INT 21H `zcpaE.@
MOV AX, 4C00H (L<G=XC
INT 21H C[JPohm
END Sa6YqOel@
@Z~0!VY
J8`vk#5
x86 CPU,GNU/Linux,NASM OadGwa\:s
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). vRO`hGH
;Enter this into "hello.asm" then type: UWBR5
;"nasm -f elf hello.asm" 7q^a@5f BG
;"ld hello.o -o hello" sQY0Xys<4
;"./hello" JG'&anbm
LS1}j WU!
section .data ;data section declaration !z?:Y#P3
msg db 'Hello World!',0AH LoS%FI
len equ $-msg ;string length
ob=IaZ@?
}nNCgH
section .text ;code section declaration %X Wb|-=
global _start ;entry point (start of execution) J,wpY$93
_start: mov edx,len ;string length *U4eL-
mov ecx,msg ;string start q VJC O-K|
mov ebx,1 ;file handle: stdout -M?s<R[&
mov eax,4 ;sys_write uTUkRqtD!
int 80h ;kernel system call pd}af iF
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mov ebx,0 ;return value & Pzr)W(
mov eax,1 ;sys_exit kR(hUc1O
int 80h ;kernel system call >1d`G%KfG
SNf*2~uq)
PF/eQZ*4
x86 CPU,Windows,MASM32 ucC'SS
.386 ~G`(=\_0
.model flat,stdcall h{M.+I$}C
option casemap:none \!:^=2VF
;Include 文件定义 Ea[K$NC)#
include windows.inc ukRbSJ5a5
include user32.inc #+Cu&l
includelib user32.lib m]:|j[!*M
include kernel32.inc Q68q76
includelib kernel32.lib
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;数据段 '0>w_ge4
.data ;3WVrYe
szCaption db 'A MessageBox!',0 _kT$/k
szText db 'Hello,world!',0 yGtGhP8
;代码段 D>Dch0{H,:
.code :Sd
iG=t
start: G4eY}3F7,4
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK sKI{AHJ?X
invoke ExitProcess,NULL z>X<Di&x)
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> %) 8 UyZG
end start v-mhqhb
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Fv"jKZPgzz
AWK Mm+kG'Z!S
BEGIN { print "Hello, world!" } w{;esU
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7Z+4F=2ff
BASIC J}cqBk>
传统版BASIC(例如GWBASIC): |+Fko8-
0R%R2p'wG
10 PRINT "Hello, world!" Hqpw Q
20 END t)Mi,ljY[
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或在提示符输入: 3-5X^!C
8QN#PaY
?"Hello, world!":END QK3j.Ss
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现代版BASIC(例如Quick BASIC): 3;6Criq}
s<t*g]0`/
Print "Hello, world!" -W5ml
@
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^
以下的语句在Quick BASIC中同样有效: |lOH
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? "Hello,world!" b]Xc5Dp{
1\_S1ZS
11s*C #
BCPL |Y6+Y{|\
GET "LIBHDR" Rh:edQ#
W9ZfD~(3-
LET START () BE PO,mg?JG(
$( 8MH ZWi
WRITES ("Hello, world!*N") VuqJ&U.-
$) e==}qQ
7r?s)ZV
9b8ZOk'9_
Befunge $s*\yam?|
"!dlrow olleH">v 7n,*3;I
, %B&y^mZv*\
^_@ f?OFMac
Vu3;U
tw/~z2G
Brainfuck [YQVZBT|{
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< s3sAw~++
+++++++++++++++.>.+++.------.--------.>+.>. XANPI|
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pDlU*&
C xU4,R cgo
#include <stdio.h> "w#jC~J<W
bi y1!r
int main(void) %z}{jqD&:X
{ Z Sj[GI
printf("Hello, world!\n"); Hy _ (
return 0; `@$qy&AJ
} 8{@0p"re@
SLyeonM-C
[ &cCE
C++ ^h}xFiAV#
#include <iostream> 2UPqn#.3
+9MoKn=h
int main() &R? \q*
{ }IM *Vsk
std::cout << "Hello, world!" << std::endl; \>b
:
return 0; 21b
} r2WW}W
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Vz(O=w=
C++/CLI noali96J
int main() _O76Aw-@l
{ T}%8Vlt]
System::Console::WriteLine("Hello, world!"); \yIan<q
} IQ$cLr-S
`Ap<xT0H
I\%a<
C# (C Sharp) f~HC%C
YH
class HelloWorldApp o5NV4=
{ 0+\%os V
public static void Main() x4$#x70?
{ c7~+ 5
System.Console.WriteLine("Hello, world!"); JDTlzu1hR
} l[Hgh,
} 7+!4pf
;'E1yzX^
h!k[]bt5
COBOL E}7@?o7u}
IDENTIFICATION DIVISION. 2pKkg>/S
PROGRAM-ID. HELLO-WORLD. :Pa^/i
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ENVIRONMENT DIVISION. 4 f)B@A-
qL;OE.?oA
DATA DIVISION. Oz3JMZe
WOw( -
PROCEDURE DIVISION. X+0+}S
DISPLAY "Hello, world!". ZDQc_{e{
STOP RUN. 8dgi"/[3
7gX#^YkE+k
Pv- i.
Common Lisp RM\A$.5
(format t "Hello world!~%") Aoi) 11>
} D'pyTf[
T?4pV#
DOS批处理 'AU:[eyUV
@echo off zla^j,
echo "Hello, world!" 6cO36
M<nKk#!+h
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Eiffel 5]-q.A5m
class HELLO_WORLD zJ"`40V*;
|n*nByL/
creation
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make +4*3aWf`
feature &nKb<o
make is | e?:Uq
local jpGZ&L7i&
io:BASIC_IO -:$#koW
do {IB}g:
!!io yi29+T7j4S
io.put_string("%N Hello, world!") -Lo3@:2i
end -- make 4r+@7hnK
end -- class HELLO_WORLD bR\Oyd~e
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Erlang PLb[U(~
-module(hello). _A>?@3La9
-export([hello_world/0]). AGWs>
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hello_world() -> io:fwrite("Hello, World!\n"). ~W>3EJghR,
(9]8r2|.
~x-"?K
Forth s"'ns
." Hello, world!" CR d-rqZn}
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l_2B
Fortran rGn6S&-
WRITE(*,10) +u[^@>_I0
10 FORMAT('Hello, World!') _9pcHhJux
STOP ^b;3Jj
END #n_ gry!5
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S/2lK*F
HTML G`oY(2U
<HTML> K!<3|d
<HEAD> (i1q ".
<TITLE> Hello World! </TITLE>
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</HEAD> O{<uW-
<BODY> .rcXxV@f
<p>Hello World!</p> zMg(\8
</BODY> gb^<6BYUG
</HTML> v;WfcpWq2
:'$V7LZ5
1_B;r9x
HQ9+ 3+4U?~^k*
H ZO!)G
?ubIh.d
Tsl0$(2W
INTERCAL D(^ |'1
PLEASE DO ,1 <- #13 qh~S)^zFJ
DO ,1 SUB #1 <- #238 >Wr
DO ,1 SUB #2 <- #112 P] 9-+
DO ,1 SUB #3 <- #112 /b~|(g31"
DO ,1 SUB #4 <- #0 :Y>M//0
DO ,1 SUB #5 <- #64 z\Y-8a.]
DO ,1 SUB #6 <- #238 O)WduhlGQ
DO ,1 SUB #7 <- #26 x1nqhSaD
DO ,1 SUB #8 <- #248 vW:XM0
DO ,1 SUB #9 <- #168 ZsikI@?
DO ,1 SUB #10 <- #24 _'47yq^O
DO ,1 SUB #11 <- #16 6Y(Vs>
DO ,1 SUB #12 <- #158 :D !}jN/)
DO ,1 SUB #13 <- #52 d)X6x-(
PLEASE READ OUT ,1 }I;5yk,o
PLEASE GIVE UP Sx%vJYH0
GMO|A.bzzN
y
2v69nu~q
Java V=g<3R&
public class Hello gAWrn^2L5
{ ,/ P)c*at5
public static void main(String[] args) ssy+x;<x,
{ .`ppp!:a4
System.out.println("Hello, world!"); ^,.G<2Kx&
} :U7m@3czU
} xe3t_y
9-9:]2~g!
*8*E\nZx!
JSP ?/,sKF74i
<% `Oc`I9
out.print("Hello, world!"); gTp){
%> 8'(|1
?OU+)kgzh
,DT=(
MIXAL DfCo=
TERM EQU 19 the MIX console device number XVfp* `
ORIG 1000 start address [We(0wF[`
START OUT MSG(TERM) output data at address MSG 1z\>>N$7B
HLT halt execution *1L;%u| [
MSG ALF "MIXAL" VS#i>nlT
ALF " HELL" z5CWgN
ALF "O WOR" dpBG)Xzoyv
ALF "LD " ZZa$/q"
END START end of the program C(-bh]J
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7b_Ihv
Nuva A|BvRZd
<..直接输出..> 6'M"-9?G
Hello, world! U~SOHfZ%(
su`]l"[,]
<..或者..> 9^m& [Z
9oteQN{9
<. f.gkGwNk
// 不带换行 VY'#>k}}
? "Hello, world!" x@I@7Pvo3
t/,k{5lX
// 或者 I3xx}^V
/Xi:k
// 带换行 {PHxm
?? 'Hello, world!' 7
:s6W%W1*
.> 2-| oN/FD
'3wte9E/
{y|y68y0+
OCaml RIUJ20PfYQ
let main () = 17G7r\iNYq
print_endline "Hello world!";; (jCE&'?}
=,I,K=+_x
^!|BKH8>f%
Pascal J3Q.6e=7
program Hello; bTKzwNx
begin 3}$L4U
writeln('Hello, world!'); a2iaP
end. W.o
W=<
=#1iio&
LL-MZ~ZB
Perl hdN3r{
#!/usr/local/bin/perl e&F,z=XJ}
print "Hello, world!\n"; RXgi>Hz
vK#xA+W
blaxUP:
PHP wamqeb{u
<?php 50rq}-
print("Hello, world!"); qVJV 9n
?> 6}Y^X
Qo)>i0
w{K_+}fAC
Pike 9+=U&*
#!/usr/local/bin/pike <+sv7"a
int main() lGjmw"/C
{ ]O7I7K
write("Hello, world!\n"); ^N`ar9Db
return 0; ]_|qv1K6
} %S.R@C[3
] 2FS=
Q?7UiTZ
PL/I K!HSQ,AC
Test: procedure options(main); 6/s#'#jh
declare My_String char(20) varying initialize('Hello, world!'); \|DcWH1
put skip list(My_String); D19uI&U4
end Test; 7qgHH p
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RjSVa.x
Prolog yWFDGk
goal GJ
ZT~
write("hello,world!"). s+C&\$E
vy1:>N?#5
DDc?GY:
Python &`pd&U{S*
#!/usr/local/bin/python CdatN$/*
print "Hello, world!" Skp&W*Ai
yYp!s
#r#UO
REXX (6>8Dt 9[
say "Hello, world!" DP &,jU6
EF qWnz
zg0)9br
Ruby D$I7Gz,w{
#!/usr/bin/ruby a%7%NN*i
print "Hello, world!\n" l`~*"4|/
HPg@yx"U
M{3He)&
Scheme "S_t%m&R
(display "Hello, world!") tO)mKN+
(
(newline)
xuv%mjQ
+i4S^B/8i
JN$v=Ox{
sed (需要至少一行输入) F%+/j5~^
sed -ne '1s/.*/Hello, world!/p' [- a2<E
y5RcJM
+I;b,p
Smalltalk @'/\O-
Transcript show: 'Hello, world!' >|/NDF=\s
w(eAmN:zR
O0i_h<T
SNOBOL SZzS$6t
OUTPUT = "Hello, world!" C*,-lk0b@
END &Op, ?\
6
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u-qg9qXJb
SQL wbyY?tH
create table MESSAGE (TEXT char(15)); +5JCbT@y
insert into MESSAGE (TEXT) values ('Hello, world!'); cWA9 n}Z
select TEXT from MESSAGE; %r=uS.+hrF
drop table MESSAGE; gah3d*d7
<_dyUiT$J
4askQV &hj
Tcl D}>pl8ke~g
#!/usr/local/bin/tcl 1j`-lD
puts "Hello, world!" kn^RS1m
C5CUMYU
9gZMfP
TScript r1\c{5Wt
? "Hello, world!" Vl%AN;o
#5wOgOv
iKnH6}`?U
Turing r/$+'~apTk
put "Hello, world!" [2pp)wq
D^baXp8
j 6%X
UNIX-style shell yM}}mypS
程序中的/bin/sh可改为您使用的shell <Bn^+u \
n#uH^@#0
#!/bin/sh AjKP -[
echo 'Hello, world!' HgvgO\`]
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%0fF_OU
GUI lM86 *g 'l
[^EU'lewnW
Delphi nm'sub
program HelloWorld; D>+&= 5{
uses SpPG
Dialogs; >6*"g{/
begin ([R}s/)$
ShowMessage('Hello, World!'); L-hK(W!8pt
end. !C
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Nuva )xX(Et6+`
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