“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。 38sLyoG=i
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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》。 5 _y w
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以下是用不同语言写成的Hello World程序的几个例子: p+b/k2Q
Ada 4!14:mq
with Ada.Text_Io; use Ada.Text_Io; 4evN^es'I_
procedure Hello is ;):;H?WS|A
begin `Ku:%~$/
Put_Line ("Hello, world!"); KxErWP%
end Hello; 8$c) ]Bv
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xjBY6Ylz
汇编语言 KsGW@Ho:
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x86 CPU,DOS,TASM In4VS:dD
MODEL SMALL 7zz F M
IDEAL pcv\|)&}
STACK 100H
b7hICO-w
pIR_2Eq
DATASEG .hckZx /
HW DB 'Hello, world!$' n-K/dI
Z>UM gu3c
CODESEG ;8=Bee4
MOV AX, @data C_3,|Zq?|
MOV DS, AX 3` IR
^
MOV DX, OFFSET HW !hJ!ck]M
MOV AH, 09H 6
JI8l`S
INT 21H ;a|%W4 "
MOV AX, 4C00H @D[+@N
INT 21H &@xm< A\S
END ?Xpk"N7
i~E0p
,
Iep_,o.Sk
x86 CPU,GNU/Linux,NASM DN%JT[7
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). aAqM)T83
;Enter this into "hello.asm" then type: V.8Vy1 $
;"nasm -f elf hello.asm" gs+nJ+b
;"ld hello.o -o hello" c)Ng9p
;"./hello" 4-HBXG9#/
PE;<0Cz\
section .data ;data section declaration ){mqo%{SO
msg db 'Hello World!',0AH m2~`EL>
len equ $-msg ;string length P#3J@aRC
kXdXyq
section .text ;code section declaration uo?R;fX26
global _start ;entry point (start of execution) KCpq<A%
_start: mov edx,len ;string length A;X3z-[[
mov ecx,msg ;string start k]AL\)
&W
mov ebx,1 ;file handle: stdout Zk~Pq%u
mov eax,4 ;sys_write {oAD;m`
int 80h ;kernel system call % dtn*NU
qOmL\'8
mov ebx,0 ;return value 7[ n
|3
mov eax,1 ;sys_exit g?iZ RM
int 80h ;kernel system call 2f{p$YIt
]w,|WZm
vH}VieU
x86 CPU,Windows,MASM32 7}NvO"u
.386 S@[NKY
.model flat,stdcall >mtwXmI
option casemap:none Zqf
ovG
;Include 文件定义 IR3+BDE)>
include windows.inc N`d%4)|{
include user32.inc ts@w 9|
includelib user32.lib /F^
Jn_
include kernel32.inc 8LF=l1=~
includelib kernel32.lib %x;~o:
;数据段 [OPF3W3z
.data -1hCi!
szCaption db 'A MessageBox!',0 1}Guhayy
szText db 'Hello,world!',0 J@i9)D_
;代码段 "PS ) "t
.code 5{ !"}
start: YHY*dk*|C
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK yzl}!& E
invoke ExitProcess,NULL )b%zYD9p
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> QxbG-B^)=
end start x8c>2w;6x^
PYNY1|3
EqBTN07dZS
AWK YnU*MC}
BEGIN { print "Hello, world!" } *T}c{/
6)ysiAH?
Jw;G_dQ[
BASIC eC<?g
传统版BASIC(例如GWBASIC): S&&QU#
kZ6:=l
10 PRINT "Hello, world!" 1:yil9.\*
20 END #y"LFoJn
UCj<FN `
或在提示符输入: YuHXm3[
:}q)]W
?"Hello, world!":END v=dK2FaY
gw">xt5
现代版BASIC(例如Quick BASIC): M17+F?27M
;jQ^8S
Print "Hello, world!" Ps(oxj7
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以下的语句在Quick BASIC中同样有效: '"c`[L7Wn
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? "Hello,world!" }fef* >>}
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1`s^r+11:
BCPL RU/SJ1wM"
GET "LIBHDR" I#]pk!
6f
t6;*,
LET START () BE ;bHS^
$( QX&Y6CC`]
WRITES ("Hello, world!*N") @KHY8y7
$) f<oU"WM
O0_RW`69
Ek_<2!%X
Befunge '-X O;{,-R
"!dlrow olleH">v 'R-g:X\{
, f`}/^*D
^_@ amX1idHo^
1D!MXYgm1b
xTH3g^E
Brainfuck @)!N{x?
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< l&kZ6lZ
+++++++++++++++.>.+++.------.--------.>+.>. Wl+spWqW
W1LR ,:$
%\}5u[V
C AOwmPHEL
#include <stdio.h> #_K<-m%9
K3WaBcm
int main(void) gLFTnMO
{ RE D@|[Qh
printf("Hello, world!\n"); H4T~Kv
return 0; 19[!9ci
} +%WW8OX
8^_e>q*W
mH\2XG8nV
C++ B~@Gfb>`'
#include <iostream> .A_R6~::
}L%2K"8?}
int main() 4b,+;
{ p*T[(\8{n
std::cout << "Hello, world!" << std::endl; E="uDHw+
return 0; Z.x]6
} 3Of!Ykf=
q\gbjci
M^hz<<:$
C++/CLI Bc-/s(/Eq
int main() Bu?Qyz2O
{ m6}_kzFz
System::Console::WriteLine("Hello, world!"); {.;qz4d`
} hM>.xr
N_Zd.VnY
,Jn` qvmi
C# (C Sharp) 4M6[5RAW{
class HelloWorldApp w-NTw2x,&
{ F~7TE91C
public static void Main() 5DkEJk7a
{ "3a}~J<g
System.Console.WriteLine("Hello, world!"); V,8Z!.MG
} :>_oOn[ _
} Y%|dM/a`
:qAX9T'{t
Rh$+9w
COBOL y7rT[f/J
IDENTIFICATION DIVISION. s aHY9{)
PROGRAM-ID. HELLO-WORLD. p&)d]oV>
kd]CV7(7
ENVIRONMENT DIVISION. EgbH{)u
FgrVXb_q
DATA DIVISION. 0L ,!o[L*
XJy.xI>;
PROCEDURE DIVISION. @t*D<B$
DISPLAY "Hello, world!". ukc
7Z
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STOP RUN. Tow! 5VAM
gSj0+|
T(]*jaB
Common Lisp 0*oavY*
(format t "Hello world!~%") l%?4L/J)#
ylS6D
guf*>qNr
DOS批处理 Q
8;JvCz
@echo off Dfc%
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echo "Hello, world!" x
ju*zmu
gX(Xj@=(&
0M&~;`W}
Eiffel '.>y'=
class HELLO_WORLD gN73)uJ0
D`'Cnt/
creation kUT^o
make YU)%-V\
feature G]EI!-y
make is 0w< ilJ
local sX3qrRY
io:BASIC_IO L$+_
do ZitmvcMk
!!io ~ISY( &
io.put_string("%N Hello, world!") ZH>i2|W<
end -- make T\=#y
end -- class HELLO_WORLD Zs-lN*u7.
""|;5kJS4
lFSvHs5
Erlang G!G:YVWXP
-module(hello). :2/jI:L~
-export([hello_world/0]). ~Lg ;7i1L
EE`[J0 (
hello_world() -> io:fwrite("Hello, World!\n"). uqa
pj("
BIew\N
YK$[)x\S
Forth iVf7;M8O
." Hello, world!" CR ~{-Ka>A
])%UZM6
>}2
,2
Fortran /lPnf7
WRITE(*,10) o2hZ=+w>
10 FORMAT('Hello, World!') 7'Hh^0<
STOP #n15_cd
END =n_z `I
,oSn<$%/q
qN9 ?$\
HTML YktZXc?iI<
<HTML> x >tm[k
<HEAD> KsK]y,^Z
<TITLE> Hello World! </TITLE> ;3xi.^=B
</HEAD> gy~2LY !}
<BODY> 11Qi
_T\
<p>Hello World!</p> pzUr9
</BODY> ~ qaT
jSP
</HTML> )R?uzX^qf
s,!vBSn8
8bs' Ek{'o
HQ9+ kumo%TXB&
H RP[`\
BS,EW
&5bIM>)v
INTERCAL @Bjp7v:w
PLEASE DO ,1 <- #13 0=t2|,}
DO ,1 SUB #1 <- #238 .J&89I]U
DO ,1 SUB #2 <- #112 Ea'jAIFPpO
DO ,1 SUB #3 <- #112 \/gf_R_GN
DO ,1 SUB #4 <- #0 5K682+^5
DO ,1 SUB #5 <- #64 v&7<f$5
DO ,1 SUB #6 <- #238 8 4reyA
DO ,1 SUB #7 <- #26 *:"60fkoU
DO ,1 SUB #8 <- #248 e8oAGh"
DO ,1 SUB #9 <- #168 f&$;iE
DO ,1 SUB #10 <- #24 4K dYiuz0`
DO ,1 SUB #11 <- #16 >, 'guaa
DO ,1 SUB #12 <- #158 =h
+SZXe<r
DO ,1 SUB #13 <- #52 }Qe(6'l_
PLEASE READ OUT ,1 A:2CP&*
PLEASE GIVE UP + @|u8+
W/ WP }QM
!Fxn1Z,
Java +]NpcE'
public class Hello L:mE)Xq2
{ L;L_$hu)
public static void main(String[] args) 3O1Lv2)_
{ 9) $[W
System.out.println("Hello, world!"); U:eX^LE7
} Q=vo5)t
} G %\/[
B
&DHIYj1 i
?"<m {,yQI
JSP C.LAr~P
<% U 0~BcFpD
out.print("Hello, world!"); {D(l#;,iX2
%> %[9ty`UE
`k8j FB C
BD}%RTeWKq
MIXAL x?u@
j7[
TERM EQU 19 the MIX console device number PVdN)tG5
ORIG 1000 start address "oFi+']*
START OUT MSG(TERM) output data at address MSG .
.S3-(xW
HLT halt execution 3
Fy CD4#
MSG ALF "MIXAL" HINk&)FC
ALF " HELL" \-{$IC-L
ALF "O WOR" 7bRfkKD
ALF "LD " |M
t2
END START end of the program uTPAf^|
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i O? f&u
Nuva $UK m[:7
<..直接输出..> R+e)TR7+
Hello, world! tl7:L>
9n_RkW5g
<..或者..> h05FR[</
*)I^+zN
<. >+.GBf<E
// 不带换行 iS<1C`%>
? "Hello, world!" UWS 91GN@
m-;8O /
// 或者 OT=1doDp
?MmQ'1N
// 带换行 Q)M-f;O
?? 'Hello, world!' q@XJ,e1A
.> ^-n^IR}J
(vzYgU,
0+SZ-]
OCaml h"Wpb}FT
let main () = B"#pvJN
print_endline "Hello world!";; a_{'I6a*,
<gH-`3J6
)K$xu (/K
Pascal ]GCw3r(!
program Hello; 1|ddG010
begin ot!m=s
writeln('Hello, world!'); .V0fbHYTJ
end. G?\eO&QG{"
n@"<NKzh
mvt-+K?U
Perl _LfbEv<,T
#!/usr/local/bin/perl 9,\AAISi
print "Hello, world!\n"; q+<,FdG
$?gKIv>g
(Pw,3CbJ
PHP )dEcKH<#
<?php #*"V'dj;e
print("Hello, world!"); "-MB U
?> 4oryTckS
V6((5o#
`v<S
Pike 1{d;Ngx
#!/usr/local/bin/pike hgE:2@
int main() -O=xgvh"
{ T<Qa`|5>
write("Hello, world!\n"); v''J@ F7
return 0; B~qo^ppVU
} /0|1xHs
$dK430_B
0]MD?6-
PL/I p W5D!z
Test: procedure options(main); |S@
declare My_String char(20) varying initialize('Hello, world!'); A:z
put skip list(My_String); }|[0FP]v
end Test; 5A|dhw
wmXI8'~F&
z-g6d (
Prolog u(f;4`
goal -JPkC(V7]
write("hello,world!"). c>3? T^=
4tUt"N
U#iW1jPE2
Python @]2aPs} }6
#!/usr/local/bin/python 'o0o.&/=
print "Hello, world!" F9%+7Op^
&OXx\}>MW
V\r{6-%XiW
REXX 4t/ ?b
say "Hello, world!" r%X
M`;bQX
h?B1Emlq
!?+0O]`}
Ruby #=ij</
#!/usr/bin/ruby J>;r(j
print "Hello, world!\n" `r3 klL,W'
bXXX-Xc
QV\af
Scheme JTBt=u{6^
(display "Hello, world!") <}8G1<QZ'.
(newline) S0:Oep
:(yut
d^!3&y&
sed (需要至少一行输入) RIO?rt;
sed -ne '1s/.*/Hello, world!/p' gn~^Ajo
%VR{<{3f
whP5u/857
Smalltalk B|$o.$5
Transcript show: 'Hello, world!' kdV9F
7w8UnPuM
RF'nwzM3
SNOBOL s] ;P<
OUTPUT = "Hello, world!" 1MnC5[Q
END R-OO1~W=
8d Fqwpw8
`jTB9A"
SQL 59W~bWHCP
create table MESSAGE (TEXT char(15)); t#y,9>6
insert into MESSAGE (TEXT) values ('Hello, world!'); HyKA+7}
select TEXT from MESSAGE; 1n7'\esC*
drop table MESSAGE; $G }9iV7
h# Z,ud_
}m5()@Q}a
Tcl I\c7V~^hnG
#!/usr/local/bin/tcl QUvSeNSp
puts "Hello, world!" %N(>B_t\
#9.%>1{6Y
HJym|G>%?
TScript BtKor6ba
? "Hello, world!" f/IQ2yT-:D
f5un7,m
}YM\IPsPu
Turing e<a*@
P,
put "Hello, world!" :&:P4Y1
E
-%%Xx5D
_~C1M&b(X3
UNIX-style shell *!*%~h8V
程序中的/bin/sh可改为您使用的shell XE2rx2k
.oTS7rYw
#!/bin/sh e"bzZ!c&~V
echo 'Hello, world!' L$s ENOm
) )FLM^dj
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