“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/;!yOF
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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》。 d^b(Uo=$
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以下是用不同语言写成的Hello World程序的几个例子: d+DdDr
Ada CWKN0HB
with Ada.Text_Io; use Ada.Text_Io; Zfwhg4G~
procedure Hello is vfBIQfH
begin ye?4^@u u
Put_Line ("Hello, world!"); ygI81\D
end Hello; rF n%e
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"MS}@NLUW
汇编语言 y-C=_v_X
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x86 CPU,DOS,TASM xAlyik
MODEL SMALL DPV>2'
fV
IDEAL XL=Y~7b
STACK 100H f[r?J/;P9
F/8="dM
DATASEG +ftOJFkI
HW DB 'Hello, world!$' Hg[g{A_G[
NWL\"xp
`t
CODESEG 4H
4W
MOV AX, @data `wGP31Y.
MOV DS, AX ,^Ug[pGG-
MOV DX, OFFSET HW ^ &UezDTS
MOV AH, 09H CB!5>k+mC
INT 21H "p Rr>F a
MOV AX, 4C00H v$n J$M&k
INT 21H pk>p|q
END I7=g8/JD
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x86 CPU,GNU/Linux,NASM +,8j]<wpo
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). b\
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;Enter this into "hello.asm" then type: FR57F(31
;"nasm -f elf hello.asm" @$:T]N3m
;"ld hello.o -o hello" cpY'::5.%
;"./hello" 0XgJCvMcB
:6h$1
+6
section .data ;data section declaration J~jxmh
msg db 'Hello World!',0AH O8\> ?4)
len equ $-msg ;string length }8lvi
vR4
1&7~.S;km
section .text ;code section declaration E8gbm&x*
global _start ;entry point (start of execution) uDe%M
_start: mov edx,len ;string length 0oC5W?>8s
mov ecx,msg ;string start H0dHW;U<1
mov ebx,1 ;file handle: stdout U<|hIv-&
mov eax,4 ;sys_write KzgW+6*G
int 80h ;kernel system call dx.,
f52*s#4}
mov ebx,0 ;return value Ng Jp2ut
mov eax,1 ;sys_exit mKTa.
int 80h ;kernel system call PQ0l <]Y
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Sh@en\m=#S
x86 CPU,Windows,MASM32 k'6Poz+<
.386 5u:{lcC.X
.model flat,stdcall 4Y'Kjx
option casemap:none /7`fg0A
;Include 文件定义 6Wn"h|S
include windows.inc !EwL"4pPw
include user32.inc :Qc[>:N
includelib user32.lib UZ*Yt
include kernel32.inc *m>XtBw.
includelib kernel32.lib jIvSjlm I
;数据段 M= ]]kJ:I
.data M"W~%
szCaption db 'A MessageBox!',0 $E >)
szText db 'Hello,world!',0 u*h+c8|zI
;代码段 {e/6iSpT
.code \>7hT;Av=G
start: hRc.^"q9
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK )8,) &F
invoke ExitProcess,NULL Sd9%tO9mf
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !kpnBgm U
end start ^7p>p8
1s "/R
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AWK 1woBw>g
BEGIN { print "Hello, world!" } {hRM=f7
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BASIC o6b\
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传统版BASIC(例如GWBASIC): XX9u%BZ~
o$XJSz|6
10 PRINT "Hello, world!" }#bX{?f
20 END kv8
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jI%g!
或在提示符输入: ,Oj
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2D vKW%;
?"Hello, world!":END 'P`L?/_3
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现代版BASIC(例如Quick BASIC): KD(}-zUs
<\6<-x(H5
Print "Hello, world!" .ou#BWav/
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以下的语句在Quick BASIC中同样有效: "Vw;y+F}
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? "Hello,world!" ;zpSyyp@
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BCPL OZCbMeB{+J
GET "LIBHDR" IPTEOA<M[
-ge :y2R_w
LET START () BE Xlp $xp"
$( 3[ T<pAZ
WRITES ("Hello, world!*N") ?c7}
v
$) ]ysEj3
jWE?$r"
wMx#dP4W8
Befunge oBpoZ @[Z
"!dlrow olleH">v H}f}Y8J{
, ^DaP^<V
^_@ C%LXGMt
QVq+';cG
/t$J<bU
Brainfuck }z|@X KA#
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 49Y_ze6L}
+++++++++++++++.>.+++.------.--------.>+.>. 0DQ\akh
PSR21;
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C fEgwQ-]
#include <stdio.h> c:OFBVZ
4],*y`& g
int main(void) 6 $*\%
{ 'U|Tye i?
printf("Hello, world!\n"); O&vE 5%x
return 0; gd=gc<z YP
} '^#=,+ A
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r,FPTf
C++ qHtonJc
#include <iostream> Q"VS;uh.v
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int main() 1{0 L~
{ 6|HxBC#4
std::cout << "Hello, world!" << std::endl; Oh]RIWL
return 0; W_\~CntyZ
} L &nqlH@+~
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hALg5.E{T
C++/CLI Zk .V
int main() +Dwq>3AH
{ +yO^,{8SE
System::Console::WriteLine("Hello, world!"); dF#`_!4pbf
} W81dLeTZg
grWmF3c#
J.;{`U=:
C# (C Sharp) xJemc3]2
class HelloWorldApp ijuIf9!
{ >dU.ic?19
public static void Main() u.~`/O
{ O
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System.Console.WriteLine("Hello, world!"); 4
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} -l2aAK1M
} t7; ^rk*
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t_\;G~O9-M
COBOL *41
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IDENTIFICATION DIVISION. 6&qT1nF1
PROGRAM-ID. HELLO-WORLD. Kx<T;iJ}
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ENVIRONMENT DIVISION. 8+=-!":]
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DATA DIVISION. wSGW_{;-
>v9@p7Dn
PROCEDURE DIVISION. %'`L+y
DISPLAY "Hello, world!". ^U@-Dp,k+
STOP RUN. Mb
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9~Ve}NB#z&
Common Lisp Ee0}Xv
(format t "Hello world!~%") R'e>YDC
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+`_Km5=
DOS批处理 C#3K.0a
@echo off R|OY5@
echo "Hello, world!" 8RE" xJMff
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Ce~
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Eiffel |(Q !$
class HELLO_WORLD .CY;-
&E +2
creation pGHn
make 'v?"TZ
feature ?]In@h-
make is >^|(AzS
local ;:l>Kac
io:BASIC_IO }g]O_fN7~
do wB0Ke
!!io >/eV4ma"
io.put_string("%N Hello, world!") q?TI(J+/
end -- make K2gg"#ft?
end -- class HELLO_WORLD 4Y!_tZ>
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HgfeSH
Erlang xmp^`^v*
-module(hello). E3`&W8
-export([hello_world/0]). `k.Nphx~%
)(`HEl>-9c
hello_world() -> io:fwrite("Hello, World!\n"). n+q a/<
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b
Forth ]Ac&h
aAP
." Hello, world!" CR W{js9$oJ
9 U!-Zn!
9d8bh4[
Fortran T>e4Og"?
WRITE(*,10) ouO<un
10 FORMAT('Hello, World!') AC& }8w[>u
STOP 1 ^q~NYTK
END trAIh}Dj
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~Q36lR
HTML WAWy3i
<HTML> T
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<HEAD> stcbM
<TITLE> Hello World! </TITLE> 9EI Oa/*
</HEAD> |',$5!:0O
<BODY> =Ti[Q5SZ
<p>Hello World!</p> @5Zg![G
</BODY> n k@e#
</HTML> ZL{\M|@jz
,- FC
,R8:Y*@P
HQ9+ T#:n7$M|?A
H uU;]/
F `cuV
G;k#06
INTERCAL b,MzHx=im
PLEASE DO ,1 <- #13 z&@O\>Q
DO ,1 SUB #1 <- #238 D @bnm
s
DO ,1 SUB #2 <- #112 i*9Bu;
DO ,1 SUB #3 <- #112 i{.%4tA4
DO ,1 SUB #4 <- #0 Qe,aIh
DO ,1 SUB #5 <- #64 ER4j=O#
DO ,1 SUB #6 <- #238 $<QOMfY>
DO ,1 SUB #7 <- #26 B^yA+&3HI
DO ,1 SUB #8 <- #248 Cg 4l*"_
DO ,1 SUB #9 <- #168 }US^GEs(
DO ,1 SUB #10 <- #24 "PhP1;A9,
DO ,1 SUB #11 <- #16 xfsf
DO ,1 SUB #12 <- #158 L28DBj E)A
DO ,1 SUB #13 <- #52 64jFbbd-/
PLEASE READ OUT ,1 +;*dFL
PLEASE GIVE UP Tu*"+*r>s
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Java hJsYKd8g
public class Hello vD@=V#T
{ [ _Nw5_
public static void main(String[] args) gdKn!; ,w#
{ }63Qh}_Y
System.out.println("Hello, world!"); QW[
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} U 4Sxr
} b!hs|emo;
t7].33%\
Aq~}<qkIF+
JSP Z#nPn>,q
<% [(65^Zl`
out.print("Hello, world!"); 8kA2.pIk
%> ZT'VF~
e <]^7pz
0%f}w0]:
MIXAL )!tqock*v
TERM EQU 19 the MIX console device number G+dQ" cI9
ORIG 1000 start address rm"C|T4:V
START OUT MSG(TERM) output data at address MSG o{n)w6P{R,
HLT halt execution L2GUrf
MSG ALF "MIXAL" ln~;Osb
ALF " HELL" qzbpLV|
ALF "O WOR" :\sz`p?EC
ALF "LD " c@&-c [k^W
END START end of the program rz'A#-?'oG
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^}>Ie03m50
Nuva v0|[w2Q2
<..直接输出..> Dx1 w I
Hello, world!
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W7 iml|WV0
<..或者..> g4"0:^/
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<. dY6A)[dAH'
// 不带换行 9+!1jTGSkf
? "Hello, world!" |yT-N3H@
E` O@UW@
// 或者 C % d
d \[cFe1d
// 带换行 H,Ik&{@j
?? 'Hello, world!' ZA>p~Zt
.> Yc]
n>|7 k3
#;*0 Pwe`
OCaml qC;1ND
let main () = WhY8#B'?
print_endline "Hello world!";; g~#HiBgWq[
=:~%$5[[
72;4
Pascal YN<:k
Wu
program Hello; Q;EQ8pL?"
begin a9<&|L <
writeln('Hello, world!'); W{6%Hhp
end. N=hhuKt]
E?@batIrf
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Perl n:i?4'-}
#!/usr/local/bin/perl XX])B%*
print "Hello, world!\n"; =^L?Sgg
PX%Y$`
4IEF{"c_8
PHP D%k`udz<
<?php &N^^[
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print("Hello, world!"); ]EhU8bZ
?> GLIe8T*ht
N9s ,..
H|]~(.w 1}
Pike vI)-Zz[3
#!/usr/local/bin/pike J#L"kz
int main() ag~4m5n*~
{ K$K6,54y
write("Hello, world!\n"); IW1+^F9NEw
return 0; ?jDdF
} ;K+'J0
a*fUMhIi
vxmz3ht,Q
PL/I OB&lq.r
Test: procedure options(main); Cc7YjsRW
declare My_String char(20) varying initialize('Hello, world!'); JC[G5$E
put skip list(My_String); spV E'"^
end Test; fQtV-\Bc
-55Pvg0ND
8&0+Az"{O
Prolog >gqd
y*Bg
goal /N'|Vs,X
write("hello,world!"). l_`DQ8L`
`!t+sX-n
uBPxMwohR
Python l-GQ AI8
#!/usr/local/bin/python @aX$}
print "Hello, world!" ML|O2e
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SW^/\cJ^
REXX .@(+.G
say "Hello, world!" @\_l%/z{
GdxMHnn=
.^Z^L F
Ruby .gPXW=r
#!/usr/bin/ruby v;r!rZX
print "Hello, world!\n" mnwYv..ePz
LZ"yMnhOf
>>'t7U##
Scheme Lh"!Z
(display "Hello, world!") HalkNR-eEm
(newline) ?[|T"bE5[
:())%Xu3
qg(rG5kD@
sed (需要至少一行输入) X9d~r_2&m<
sed -ne '1s/.*/Hello, world!/p' /61P`1y(J
D{4Ehr "T
JDIQpO"Qji
Smalltalk cc"L> XoK
Transcript show: 'Hello, world!' J#pl7q)^w
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T
3*DwXH +
SNOBOL `k>h2(@9S
OUTPUT = "Hello, world!" FK8GBkQ!
END ns{BU->f
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C9`J6Uu
SQL K1F,M9 0]
create table MESSAGE (TEXT char(15)); &?-LL{W{
insert into MESSAGE (TEXT) values ('Hello, world!'); 7xmyjy%c
select TEXT from MESSAGE; vw'`t6
drop table MESSAGE; ?-"%%#
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7:Jyu/*]
Tcl -]uN16\ F
#!/usr/local/bin/tcl ?&H1C4
puts "Hello, world!" TvEN0RV2
(Nky?*
+&w=*IAKZ
TScript 0S{dnp
? "Hello, world!" 7,\Uk|
yWs_Z6 b
~"Pu6-\VT
Turing e@-"B9~
put "Hello, world!" | Q
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Pmj]"7Vd[
BZXP%{njS
UNIX-style shell #b~wIOR)Z
程序中的/bin/sh可改为您使用的shell Llf |fayq
(ei;Y~i
#!/bin/sh Ew4>+o!
echo 'Hello, world!' Dn6 k,nVh
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4)o_gm~6c4
GUI :?Xd&u0){
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Delphi x<0-'EF/S
program HelloWorld; G%a8'3d,
uses kH!I&4d&
Dialogs; _d8k[HAJ|
begin iXN7+QO)
ShowMessage('Hello, World!'); [w%MECTe
end. 8-N8v
*0
RaKfYLw
4{:W5eT! /
Nuva $II[b-X?S
<. /\%K7\
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) O};U3=^0f
.> T;eA<,H
Su<Ggv"
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Visual Basic |P_\l,f8`
MsgBox "Hello, world!" xZ51iD$
'或者 (l28,\Bel
Print "Hello, world!" cT8`l!RD<
qsB,yckml
-%&_LE9ZtS
Visual FoxPro 2V}tDN7c
? "Hello, world!" q;T3bxp+
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;;zKHS
X11 rf+'U9
用一个程序 ~RQ6DG^
}w \["r
xmessage 'Hello, world!' sOSol7n
x?J-
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用C++和gtkmm 2 ` Nn^
kIAWI;H{
#include <iostream> rh*Pl]'3z
#include <gtkmm/main.h> Md \yXp
#include <gtkmm/button.h> `U4R%
qhWA
#include <gtkmm/window.h> Bi"7FF(z
using namespace std; zN(fZT}K5
g)*[W>M
class HelloWorld : public Gtk::Window f-9&n4=H
{ yZ[H&>
public: [)}F4Jsz%
HelloWorld(); `;7^@ k
virtual ~HelloWorld(); u,:GJU
protected: ,}!OJyT
Gtk::Button m_button; 8>Xyz`$kH
virtual void on_button_clicked(); ~jab/cR
}; _y}]j;e8>{
Azx4+`!-
HelloWorld::HelloWorld() : m_button("Hello, world!") XEF|B--,
{ vUGEzC M
set_border_width(10); N[%^0T$
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); XqVhC):
add(m_button); ^|@t 2Rp@
m_button.show(); h+k:G9;sS
} +OFq=M
`A@{})+
HelloWorld::~HelloWorld() {} iH& Izv
=T)4Oziks
void HelloWorld::on_button_clicked() O:fv1
{ >9{Gdq[gyr
cout << "Hello, world!" << endl; 1FU(j*~:
} 0>Y3>vwSl
&pS <4
int main (int argc, char *argv[]) uBLI!N-G
{ nB ?$W4
Gtk::Main kit(argc, argv); 7:U ^Ki
HelloWorld helloworld; 4,m
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Gtk::Main::run(helloworld); <4z |"(
} B$aA=+<S
:E/]Bjq$;
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Java Hm|8ydNs
import java.awt.*; *%L:soM'Ll
import java.awt.event.*; ffK A
:ND5po#(
public class HelloFrame extends Frame *TY?*H
{ ANEW^\
HelloFrame(String title) T:aYv;#0
{ c&.>SR')
super(title); V`Z-m-V~1
} *.wX9g9\
public void paint(Graphics g) K
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{ B1>aR 7dsf
super.paint(g); &