“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。 b( wiJ&t
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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》。 ZW2U9
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以下是用不同语言写成的Hello World程序的几个例子: &Oe,$%{hBh
Ada 1&U U6| X
with Ada.Text_Io; use Ada.Text_Io; AtSEKpKc
procedure Hello is \2uQ"kJC
begin nfc&.(6x<
Put_Line ("Hello, world!"); ;#AV~Y-
s
end Hello; ALhu\x>AY
;%Qu;FtC
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汇编语言 1Eh(U
*\emRI>
x86 CPU,DOS,TASM $///N+B
MODEL SMALL C/)Xd^#
IDEAL 5K,Y6I&$SJ
STACK 100H W}Z'zU?[
0Nmd*r
DATASEG K?) &8S
HW DB 'Hello, world!$' Y}PI{PN
)8yNqnD
CODESEG 9%|!+!j
MOV AX, @data .QW89e,O3
MOV DS, AX jfk`%CEk=
MOV DX, OFFSET HW fF;-d2mF
MOV AH, 09H Ok9XC <Xu
INT 21H ;asB@Q
MOV AX, 4C00H >=wlS\:"
INT 21H $P>ci4]t
END Nb-;D)W;B
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x86 CPU,GNU/Linux,NASM kf';"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). -r[l{ce
;Enter this into "hello.asm" then type: l9\
*G;
;"nasm -f elf hello.asm" "+p_{J/P
;"ld hello.o -o hello" b3W@{je
;"./hello" 0m!+gZ@
N\rbnr
section .data ;data section declaration Tw=Jc 's
msg db 'Hello World!',0AH NeQ/#[~g
len equ $-msg ;string length 0:Xvch0
>A#]60w.
section .text ;code section declaration @jX[Ho0W'
global _start ;entry point (start of execution) .#@*)1A#t
_start: mov edx,len ;string length S-GcH
mov ecx,msg ;string start &;|/I`+
mov ebx,1 ;file handle: stdout Fc{hzqaP8
mov eax,4 ;sys_write XB
zcbS+
int 80h ;kernel system call .cjSgK1
z.--"cF
mov ebx,0 ;return value Ov h[qm?Z
mov eax,1 ;sys_exit )bXiw3'A
int 80h ;kernel system call fQM:NI?9?
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x86 CPU,Windows,MASM32 }O-|b#Q
.386 `J#(ffo-
.model flat,stdcall DR;rK[f
option casemap:none rUR{MF&]D
;Include 文件定义 O$+0 .
include windows.inc >T=($:n
include user32.inc vdV@G`)HPr
includelib user32.lib gh#9<
include kernel32.inc xx_]e4
includelib kernel32.lib g ?qm >X
;数据段
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.data x[zt(kC0+
szCaption db 'A MessageBox!',0 !K'j[cA^
szText db 'Hello,world!',0 P;C3{>G9
;代码段 N[:;f^bH49
.code )l~:Puvh
start: sA[hG*#/S
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK R5(<:]
invoke ExitProcess,NULL !`JaYUL[e
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> q#$Al
end start A!\g!*
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AWK Wxx?iW ,
BEGIN { print "Hello, world!" } {26/SY
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BASIC jvv3;lWDL.
传统版BASIC(例如GWBASIC): `7[z%cuK
yY+)IU.
10 PRINT "Hello, world!" YMb\v4
20 END >)\x\e
m^I+>Bp/:
或在提示符输入: ZCVwQ#Xe+
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?"Hello, world!":END %5Q5xw]w3
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现代版BASIC(例如Quick BASIC):
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Print "Hello, world!" GG<{n$h
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以下的语句在Quick BASIC中同样有效: LhO%^`vu
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? "Hello,world!" I6@98w}"
;;;aM:6\
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W
BCPL <+o*"z\mI
GET "LIBHDR" 1$mxMXNsJ
HGM ?
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LET START () BE sxc^n
aK0
$( ;r'y/Y'?
WRITES ("Hello, world!*N") nE;^xMOK!
$) t+y$i@R:
HGIPz{/5U
:4Jq T|nS
Befunge =Y!x
"!dlrow olleH">v ;r<(n3"F
, "u^%~ 2
^_@ Lxz!>JO>
qTxw5.Ai!
cC@.&
Brainfuck 0oR'"Vo
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< A)v!
{
+++++++++++++++.>.+++.------.--------.>+.>. _:"PBN9
}Rl^7h<!
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C 9)2kjBeb
#include <stdio.h> &ed&2t`Y
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int main(void) w(/#isC
{ CVxqNR*DN
printf("Hello, world!\n"); -QPM$
return 0; "$P|!k45(
} gbf2ty
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w}so
C++ CcDmZ
#include <iostream> j<,Ho4v}_
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int main() i*ibx;s-
{ Z:_ wE62'
std::cout << "Hello, world!" << std::endl; !W\Zq+^^J3
return 0; d OG]Yjc
} pX 4:WV
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7
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C++/CLI 8&K1;l }
int main() Ebk9[=
{ KkD.n#A
System::Console::WriteLine("Hello, world!"); "Sx}7?8AB
} WC0gJy
oY
NIJXln
}253Q!f
C# (C Sharp) xvpCOoGsz
class HelloWorldApp [- Xz:
{ _Fc :<Ym?
public static void Main() =@ SJyW
{ yLFZo"r
System.Console.WriteLine("Hello, world!"); $RASpM
} 0XgJCvMcB
} +O]jklS4H
WRdBL5
$~^Y4 }
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COBOL <t~RGn3
IDENTIFICATION DIVISION. k 'CM^,F&
PROGRAM-ID. HELLO-WORLD. P
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fC4#b?Q
ENVIRONMENT DIVISION. }^b7x;O|
h
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DATA DIVISION. |M;tAG$,"y
6x]x>:8
PROCEDURE DIVISION. An.Qi =Cv
DISPLAY "Hello, world!". V?[dg^*0
STOP RUN. r:.ydr@
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xY_<D+OV
Common Lisp ,V`zW<8
(format t "Hello world!~%") [<0\v<{`L
JkfVsmc<{h
j:Y1
DOS批处理 JXhHitUD
@echo off jWUpzf)q=T
echo "Hello, world!" }piDg(D
+KcD Y1[
{.HFB:<!}
Eiffel ,)svSzR
class HELLO_WORLD ]QqT.z%B
__mnz``/Y
creation .sqX>sU/]
make 7>@g)%",
feature H
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make is _x'?igy
local L!>EW0
io:BASIC_IO HxE`"/~.7k
do i!nPiac
!!io Le?yzf
io.put_string("%N Hello, world!") SWq5=h
end -- make s.uw,x
end -- class HELLO_WORLD 0b3z(x!O
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Erlang ;) c 4
-module(hello). I
k[{,p
-export([hello_world/0]). RJ63"F $
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hello_world() -> io:fwrite("Hello, World!\n"). gK%^}xU+
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w
rzk-_AFR
Forth #P,C9OQD
." Hello, world!" CR =rL^^MZp
2D vKW%;
HLruZyN4
Fortran ^_0l(ke
WRITE(*,10) .29y3}[PO
10 FORMAT('Hello, World!') f8AgTw,K8
STOP h ycdk1SN
END cs\/6gSCo
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HTML dH[T nqJn
<HTML> t Urwg
<HEAD> Pkq?tm$#
<TITLE> Hello World! </TITLE> bAkCk]>5
</HEAD> Osj/={7g
<BODY> $TK<~3`
<p>Hello World!</p> %9HL"
</BODY> \|wUxijJ*,
</HTML> m.':5
}z|@X KA#
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H (imaL,M-D
#y2IHO-
2g`<*u*
INTERCAL %.nZ@';.
PLEASE DO ,1 <- #13 'G|M_ e
DO ,1 SUB #1 <- #238 D>>?8a
DO ,1 SUB #2 <- #112 V
W2+ Bs}
DO ,1 SUB #3 <- #112 mDB?;a>
DO ,1 SUB #4 <- #0 ,+mH1#-3
DO ,1 SUB #5 <- #64 +C8yzMN\
DO ,1 SUB #6 <- #238 KN\*|)
DO ,1 SUB #7 <- #26 mcgkNED
DO ,1 SUB #8 <- #248 /ZpwJc`e
DO ,1 SUB #9 <- #168 ^v+3qm@,
DO ,1 SUB #10 <- #24 'G>gNq
DO ,1 SUB #11 <- #16 (h$[g"8
DO ,1 SUB #12 <- #158 Z H1UAf
DO ,1 SUB #13 <- #52 _f1~r^(/T0
PLEASE READ OUT ,1 9=FqI50{
PLEASE GIVE UP q wd7vYBc,
r}%2;!T
hP$v,"$
Java xoQ;fVNp
public class Hello KO''B or
{ J}M_Ka
public static void main(String[] args) G-#]|)
{ 2]i>kV/,0
System.out.println("Hello, world!"); :u4q.^&!e
} a"Q> K7K
} Kx<T;iJ}
<GRplkf`
8+=-!":]
JSP QH]G>+LI5
<% vXUq[,8yf
out.print("Hello, world!"); K'tckJ#%
%> m_;<7W&p]
qy$1+>f1
|u5Xi5q.f
MIXAL E|`JmfLQu
TERM EQU 19 the MIX console device number \fjr`t]
ORIG 1000 start address P"k`h=>!4
START OUT MSG(TERM) output data at address MSG -Rcl(Q}LZ
HLT halt execution PrwMR_-
MSG ALF "MIXAL" -s5>GwZt
ALF " HELL" :.J]s<J(F
ALF "O WOR"
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ALF "LD " G1z0q3< B
END START end of the program +ia N[F$
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J!o[
Nuva |tua*zEsS
<..直接输出..> XxeyGs^%9
Hello, world! Duh[(r_
^PrG5|,s
<..或者..> x |0@T ?
r{1xjAT
<. \-eDNwJ:#@
// 不带换行 PYPDK*Ie
? "Hello, world!" E3`&W8
^\Gukkmh}
// 或者 KsR^:_e
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// 带换行 s ;N PY
?? 'Hello, world!' GDBxciv
.> /~nPPC
T>e4Og"?
Oqy&V&-C
OCaml aNxq_pRb
let main () = eT<T[; m
print_endline "Hello world!";; \&Bvh4Q
B!iz=+RNC1
qQ=\R1l
Pascal VzZ'W[/7)B
program Hello; sn=_-uoU
begin E>2~cC*
writeln('Hello, world!'); ~4 {|
end. ^9wQl!e
ob
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:^H#i:4
Perl O77bm,E
#!/usr/local/bin/perl `:y {
print "Hello, world!\n"; 8IrA{UU
B^yA+&3HI
}_[Bp
PHP c^a Dr
<?php ']cRSj.
print("Hello, world!"); cQOc^W
?> F\U^-/0,
+`D,7"{Eu
6Rcl HU
Pike [ _Nw5_
#!/usr/local/bin/pike x.ZW%P1
int main() ,y%4QvG7a
{ ^w1&A3=6
write("Hello, world!\n"); pZUXXX
return 0; ~[H+,+XLY+
} d} {d5-_a
xLp<G(;
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PL/I o{n)w6P{R,
Test: procedure options(main); WVa#nU^
declare My_String char(20) varying initialize('Hello, world!'); }>T$2"pf
put skip list(My_String); yR|Beno
end Test; aUVJ\;V
[>^xMF]$2
40ZHDtIu<
Prolog oMNgyAp^
goal ,KO_h{mI<
write("hello,world!"). R<-u`uXnP
w,/&oe5M+
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Python G{C27k>wa
#!/usr/local/bin/python ZA>p~Zt
print "Hello, world!" CRKuN
KOqp@K$
W:z?w2{VI(
REXX ]u\K}n6[q
say "Hello, world!" GI ~<clhf
`~ ,
iJH;OV;P
Ruby .PHz
#!/usr/bin/ruby Frxim
print "Hello, world!\n" A3jT;D9Y%
D;RZE
aOWfu^&H:
Scheme ImnN&[Cu
(display "Hello, world!") IC[iCrB
(newline) Ivdg1X
7 g2@RKo
tOQura
sed (需要至少一行输入) |}YeQl
sed -ne '1s/.*/Hello, world!/p' T+9#&
b7nER]R
_h2s(u
>\
Smalltalk E,fG<X{
Transcript show: 'Hello, world!' :fW\!o8Z2
c/bIt
d
6$,N|
SNOBOL H|]~(.w 1}
OUTPUT = "Hello, world!" XNm%O
END 265sNaX
#^Io9dAh
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SQL <m7T`5+
create table MESSAGE (TEXT char(15)); WOgPhJ
insert into MESSAGE (TEXT) values ('Hello, world!'); 7G^`'oZ
select TEXT from MESSAGE; c(tX761qz
drop table MESSAGE; E@%X
l[)ZEEP
ED>T2.:{
Tcl bOKgR{i
#!/usr/local/bin/tcl I,pI2
puts "Hello, world!" r'C(+E (
e?"XMY
b}eBy
TScript v]tNJ=aI
? "Hello, world!" 9*"Ae0ok1
Oy,`tG0
w&F/P]1
Turing SW^/\cJ^
put "Hello, world!" sdWu6?B_
[`u3SN/P
S<+/ Ep 2
UNIX-style shell Ul41RNy)
程序中的/bin/sh可改为您使用的shell $d[ xSwang
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#!/bin/sh 9w%|Nk>=>
echo 'Hello, world!' z
g '1T2t
DV,rh83.ip
pu"`*NL
GUI @7C?]/8#
f8m%T%]f
Delphi ;g0p`wV
program HelloWorld; &vy/Vd
uses .Y?/J,Ch
Dialogs; ?Cu1"bl
begin ^YpA@`n
ShowMessage('Hello, World!'); gx*rxid
end. FzDZ<dJ
eTV%+
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Nuva |kUxTe
<. nmLn]U=
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) }Z|uLXaz
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