“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。 TMGYNb%<bX
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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》。 H:EK&$sU
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以下是用不同语言写成的Hello World程序的几个例子: xM=ydRu
Ada 6oa>\PDy
with Ada.Text_Io; use Ada.Text_Io; G4U0|^(h
procedure Hello is 2Wg:eh
begin #zv&h`gY
Put_Line ("Hello, world!"); sib/~j
end Hello; 7H*,HZc@=
Q;N)$Xx
/6rQ.+|).
汇编语言 h<V,0sZ&:
g(auB/0s
x86 CPU,DOS,TASM 'qUM38 s
MODEL SMALL 9OFH6-;6`\
IDEAL &.(iS
STACK 100H %K+hG=3O
CIui9XNU
DATASEG \K9.]PfbI
HW DB 'Hello, world!$' fWPa1E@
H<}|n1w<
CODESEG ?H!jKX
MOV AX, @data Nd]RbX
MOV DS, AX VDro(?p8Z
MOV DX, OFFSET HW y #C9@C
MOV AH, 09H /0cm7[a ?
INT 21H <)pPq+
MOV AX, 4C00H cNT !}8h^
INT 21H |)v}\-\#
END M,W-,l
]
xQ';$&
5t-d+vB
x86 CPU,GNU/Linux,NASM 6ddRFpe
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). (-Q~@Q1
;Enter this into "hello.asm" then type: ^I|i9MH
;"nasm -f elf hello.asm" ePZAi"k
;"ld hello.o -o hello" 'gXD?ARW
;"./hello" Y4w]jIv
Yn$:|$
section .data ;data section declaration P*i'uN
msg db 'Hello World!',0AH r;)31Tg
len equ $-msg ;string length #eN2{G=4+
33KCO
section .text ;code section declaration (f^/KB=
global _start ;entry point (start of execution) !vSq?!y6*P
_start: mov edx,len ;string length t^Lb}A#$4
mov ecx,msg ;string start HY eCq9S
mov ebx,1 ;file handle: stdout U.V/JbXX
mov eax,4 ;sys_write 3#x1(+c6
int 80h ;kernel system call m]*a;a'}#
(,ik:j
mov ebx,0 ;return value +=Q:g,kP
mov eax,1 ;sys_exit -+u}u=z%
int 80h ;kernel system call =>lX brJ
|Xm$O1Wa
S,C c0)j>
x86 CPU,Windows,MASM32 ,}khu
.386 @ ;@~=w
.model flat,stdcall -T;^T1
option casemap:none $a8,C\me?
;Include 文件定义 6&5D4
V
include windows.inc
jz
HWs
include user32.inc 8(&6*-7=
includelib user32.lib yY!)2{F+
include kernel32.inc %I9f_5BlT8
includelib kernel32.lib z R'EQ
;数据段 0 'THL%lK
.data <KK.f9^o(
szCaption db 'A MessageBox!',0 `&.qHw)
szText db 'Hello,world!',0 ?-%(K^y4r
;代码段 [E%g3>/mt
.code .I EHjy\+
start: z .\r7
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ]b]J)dDI
invoke ExitProcess,NULL CS(XN>N
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 6FJ*eWPC
end start ,\X! :y~
JWaWOk(t=?
'^C
*%"I]
AWK Ywv\9KL
BEGIN { print "Hello, world!" } +."|Y3a
hr&&b3W3p
T)%6"rPL3!
BASIC <,0/BMz
传统版BASIC(例如GWBASIC): v&(=^A\eN
q9p31b3
10 PRINT "Hello, world!" TBrwir
20 END oK-d58 sM
u{va2n/
或在提示符输入: bM5V=b_H
k0N>J8y
?"Hello, world!":END po'b((q
CshME\/
现代版BASIC(例如Quick BASIC): 16]Ay&Kn!
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Print "Hello, world!" ~OsLbz:
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以下的语句在Quick BASIC中同样有效: >q&5Z
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iL.py,
? "Hello,world!" U^|T{g+O
U}DE9e{/!
]T|$nwQ
BCPL fMUh\u3
GET "LIBHDR" !ht2*8$lQ
Wu<;QY($5
LET START () BE 4eB oR%2o
$( 6it
[i@*"
WRITES ("Hello, world!*N") YmFg#eS
$) t:V._@
g 8uq6U
iZiT/#, H2
Befunge F .Zk};lb
"!dlrow olleH">v [zm@hxym
, ||*F.p
^_@ 2L;=wP2?{
E9>z.vV
L fcy#3!
Brainfuck IDJ2epW*;
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ^X+qut+~
+++++++++++++++.>.+++.------.--------.>+.>. n"aF#HR?0d
gm,AH85
ubfh4
C ^^7@khmNl
#include <stdio.h> 7S
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0>BI[x@
int main(void) pZeOdh
{ 7gV9m9 #
printf("Hello, world!\n"); -C(Yl=
return 0; iX{2U lF7
} &y1iLk h ^
?D2a"a$^
<XG]aYBR
C++ g(X`.0
#include <iostream> <QFayZ$
)-1e}VF(U
int main() YLTg(*
{ n.a2%,|v
std::cout << "Hello, world!" << std::endl; H"^9g3U
return 0; 6,jCO@!
} (B$>o.(JA
gJuK% P
?B;7J7 T
C++/CLI Q|{b8K
int main() m:`M&Xs&
{ [jlum>K
System::Console::WriteLine("Hello, world!"); Ssz;d&93
} "P@ SR`v#
YaSBIq{z
bo90;7EK8
C# (C Sharp) #_S]\=N(
class HelloWorldApp 6'N_bNW
{ QtG6v<A
public static void Main() 9O-~Ws ;
{ `?R{sNr.
System.Console.WriteLine("Hello, world!"); XD8I.q
} onRTX|#
} HBvyX`-
=v::N\&
.TdFI"Yn
COBOL <'$>&^!^
IDENTIFICATION DIVISION. 7]1a3Jk
PROGRAM-ID. HELLO-WORLD. y;fF|t<y
F1_,V?
ENVIRONMENT DIVISION. )P
b$
h9imS\gfr
DATA DIVISION. jlF3LK)9q
}riM-
PROCEDURE DIVISION. $
-<(geI
DISPLAY "Hello, world!". 7- LjBlH
STOP RUN. MG.c`t/w
l#T%N@X
psmDGSm,&
Common Lisp Or?c21un
(format t "Hello world!~%") Gv dok<o
D6?h
6`J
1;<Vr<.
DOS批处理 x+za6e_k"
@echo off Rrry;Hr
echo "Hello, world!" :w5g!G?z
^?(#%~NS
}za pN
v
Eiffel T }msF
class HELLO_WORLD N2}Y8aR~
[o(!/38"@=
creation D=3Z] 'A
make z7:*
,X
feature |y0k}ed
make is tw<Oy^i
local ak_y:O|
io:BASIC_IO /%,aX[
do s:xJ }Ll
!!io ke;=Vg|
io.put_string("%N Hello, world!") Z:AB(c
end -- make KFO
K%vbM
end -- class HELLO_WORLD <Fx%P:d
T{^mh(3/"
Qb)c>r
Erlang S&IW]ffK
-module(hello). \ILNx^$EL
-export([hello_world/0]). nIlTzrf6
l1<=3+d
hello_world() -> io:fwrite("Hello, World!\n"). _6h.<BR
Hik=(pTu>
]R}(CaT1
Forth yl@Nyu
." Hello, world!" CR N;-%:nC
BxV>s+o&]
uK(]@H7~!c
Fortran n CX{tqy
WRITE(*,10) 2(~Zl\
10 FORMAT('Hello, World!') ..nVViZ
STOP J%r:"Jm[y1
END (2Lmu[
~4Fz A,,
=8*ru\L:hr
HTML m='}t \=
<HTML> sxRKWM@4
<HEAD> 0',buJncV
<TITLE> Hello World! </TITLE> "?aI
</HEAD> g)$KN,gGuO
<BODY> cU ?F D
<p>Hello World!</p> b3[!1i
</BODY> 6E1~dK0t
</HTML> T_UJ?W
pi#a!Quf\
_U4@W+lhX_
HQ9+ (gVN<Es
H v%2Dz
j-**\.4a~
l"`VvW[
INTERCAL _e>N3fT
PLEASE DO ,1 <- #13 jLMy27Cn
DO ,1 SUB #1 <- #238 Pn9;&`t
DO ,1 SUB #2 <- #112 m(9I+`
DO ,1 SUB #3 <- #112 /E\04Bs
DO ,1 SUB #4 <- #0 (*6 .-Xn
DO ,1 SUB #5 <- #64 a]5y
CBm
DO ,1 SUB #6 <- #238 rf]z5;
DO ,1 SUB #7 <- #26 SYsO>`/ )
DO ,1 SUB #8 <- #248 C<T6l'S{?
DO ,1 SUB #9 <- #168 Qt>kythi
DO ,1 SUB #10 <- #24 $*N(feAs
DO ,1 SUB #11 <- #16 a;IOL
DO ,1 SUB #12 <- #158 $]};EI#
DO ,1 SUB #13 <- #52 SKNHLE}
PLEASE READ OUT ,1 i!UT =
PLEASE GIVE UP E24}?t^|
x_<#28H!
`~VL&o1>
Java pYAKA1F
public class Hello }m^^6h
{ $?z}yx$
public static void main(String[] args) +'93%/:
{ 1oiSmW\
System.out.println("Hello, world!"); M,ybj5:6
} :XAyMK7
} yN `&oya
w<h8`K`3
LfW:G5@-
JSP q&?hwX
Z7
<% b~ *iL!<
out.print("Hello, world!"); $ `\qY ^.(
%> ^["D>@yIR
s.;'-oA
r|u R!=*|?
MIXAL N>a~k}pPH
TERM EQU 19 the MIX console device number K+ M\E[1W
ORIG 1000 start address N\. g+ W
START OUT MSG(TERM) output data at address MSG "'Gq4<&y
HLT halt execution @Z#h?:
MSG ALF "MIXAL" H$^9#{
ALF " HELL" Uea2WJpX
ALF "O WOR" 8;<aco/62
ALF "LD " 4:O.x#p
END START end of the program 1GkoE
~(tt.l#
Uy|!f]"?
Nuva Uj 4HVd
<..直接输出..> 1uKIO{d@
Hello, world! FwB xag:u
<v_Wh@m
<..或者..> }#E]efjs
A-L)2.M
<. 0(u}z
// 不带换行 d
{ P$}b
? "Hello, world!" V(LfFO{^>?
ZR|s]'
// 或者 u^]Gc p
W]bytsl
// 带换行 #pW!(tfN^a
?? 'Hello, world!' l]t^MEoc8
.> l'2vo=IQ
M3!;u%~}s
ZvC?F=tH
OCaml (yuOY/~k/
let main () = |cuKC \
print_endline "Hello world!";; @~7au9.V=X
=2rdbq6R
!
,H6.IH;S
Pascal 1\/vS$bi(
program Hello; "^{Hta
begin >Q"3dw
writeln('Hello, world!'); ?kV_!2U)'K
end. %$)Sz[=
LB$0'dZU
zZ51jA9x
Perl qJl DQc-
#!/usr/local/bin/perl zd$iDi($
print "Hello, world!\n"; In:V.'D/>t
{`)oxzR
L:@COy
PHP &jg>X+;
<?php n++ak\
print("Hello, world!"); $JBb]
v8_
?> YB)I%5d;{
pV:44
fh1-]$z`~
Pike %Y#W#G
#!/usr/local/bin/pike q`z1ht
nf
int main() &E!m(|6?+
{ ?/,V{!UTtq
write("Hello, world!\n"); <pG 4g
return 0; L9,GUtK{
} ?/@XJcm+
Lq6nmjL
~SA>$
PL/I &"Cy&[
Test: procedure options(main); x2b
t^!t.
declare My_String char(20) varying initialize('Hello, world!'); U_Mag(^-
put skip list(My_String); -<T>paE9
end Test; E"/k"1@
ZtGkMd$
9MQwc
Prolog |KPNl\%ID
goal pR`nQM-D
write("hello,world!"). T(cpU,Q
,PKUgL}w
v-!Spf
Python 1Zo3K<*J
#!/usr/local/bin/python 5OFB[
print "Hello, world!" D^];6\=.i
/a-s9<
3aU4Z|f~
REXX !T~uxeZ/;
say "Hello, world!" &g*1 If
.]<iRf[\[
Gcxz$.(
Ruby M#8_Qbvfk
#!/usr/bin/ruby G$/Qcr6W<
print "Hello, world!\n" Rf=-Q
%
9&B#@cw
qI74a F
Scheme x @9rc,by
(display "Hello, world!") Lke!VS!P&
(newline) 2*n~r
Ib/e\+H\
z<yqQ[
sed (需要至少一行输入) aqi]5,
sed -ne '1s/.*/Hello, world!/p' 3_i29ghv
+^rt48${ y
G/( tgQ
Smalltalk wIF'|"
Transcript show: 'Hello, world!' aE:$ N#|Qa
dd6l+z
ka_R|xG\
SNOBOL Fs=E8' b
OUTPUT = "Hello, world!" H:z<]Rc
END UhU+vy6)/
-"2%+S{
a`C2:Z23(#
SQL c,G[R k
create table MESSAGE (TEXT char(15)); rC/z8m3z
insert into MESSAGE (TEXT) values ('Hello, world!'); oHV!>K_D
select TEXT from MESSAGE; {p(6bsn_#]
drop table MESSAGE; 8KdcU[w]
5GJa+St?
k&u5`F
Tcl k$7Kz"
#!/usr/local/bin/tcl Mt~2&$>
puts "Hello, world!" pYUQSsqC
J/Ch
/Sa
| NFDrm
TScript >pq=5Ha&
? "Hello, world!" 1wggYX
cy2K#
u+pZ<Bb
Turing =%[vHQ\%
put "Hello, world!" `w"ooK
{~Q}{ha
2jxh7\zE
UNIX-style shell jnFN{(VH
程序中的/bin/sh可改为您使用的shell PvxU.
mMK 93Ng"&
#!/bin/sh VZk;{
echo 'Hello, world!' pWoeF=+y]W
r|953e
SmAF+d
GUI 2aUE<@RU[
dA(+02U/.
Delphi ,LU|WXRB
program HelloWorld; k/Ao?R=@gI
uses
}[;r-5}
Dialogs; D*wY,\
begin h{ EnS5~
ShowMessage('Hello, World!'); %w3tzE1Hq
end. 7U&<{U<
`]/0&S
q-+_Y `_\
Nuva j4(f1
<. VY!A]S"
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _Vt
CC/
.> ^/$U(4
Bthp_cSmLs
? y[i6yN9
Visual Basic 4(8BWP~.y2
MsgBox "Hello, world!" O<?.iF%
'或者 7VfPS5se
Print "Hello, world!" ipRH.1=
x^ Y sXzu
j>hBNz
Visual FoxPro [O3)s] |
? "Hello, world!" % )}rQqQ
(/_w23rr
[](] "r
X11 /jn0Xh
用一个程序 [Lid%2O3ZR
9_%??@^>
xmessage 'Hello, world!' i6:O9Km
7{OD/*|
用C++和gtkmm 2 a#/~rNRY
)=#zMdK&
#include <iostream> Gnie|[3
#include <gtkmm/main.h> ooN?x31
#include <gtkmm/button.h> >#5jO9
#include <gtkmm/window.h> mk3,ke8
using namespace std; 9H
cxL
ZBc8^QZ
class HelloWorld : public Gtk::Window D.w6/DxaXa
{ ^
`[T0X
public: 42PA?^xPw
HelloWorld(); U~8, N[
virtual ~HelloWorld(); A+"'8%o9}
protected: Es1T{<G|w
Gtk::Button m_button; *HQ>tvUh
virtual void on_button_clicked(); zi+NQOhR
}; edfb7prfTl
mfgUf
HelloWorld::HelloWorld() : m_button("Hello, world!") lnrs4s Km
{ SJ&+"S&
set_border_width(10); S@WT;Q2Z
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); z3|5E#m
add(m_button); Ap<j;s4`
m_button.show(); Ce@"+k+w
} poS=8mN8;
;fm>
\f
HelloWorld::~HelloWorld() {} m]ALW0
uVZX53 ,g
void HelloWorld::on_button_clicked() jG/@kh*m
{ zIc_'Z,b
cout << "Hello, world!" << endl; xyi4U(;
} /}3I:aJwb
Pt7yYl&n7^
int main (int argc, char *argv[]) )JA^FQ5N
{ UH7FIM7kX
Gtk::Main kit(argc, argv); a)rT3gl
HelloWorld helloworld;
75T+6u
Gtk::Main::run(helloworld); \`>f?}4
} -dH]_
V`"Cd?R0Z
d+IN-lR(
Java 0@}:`OynX
import java.awt.*; F<Z13]|
import java.awt.event.*; idY
Xv)R
+-MieiKv
public class HelloFrame extends Frame ;^so;>F
{ qGECw#
HelloFrame(String title) iY3TB|tMt
{ S1_):JvV
super(title); wl%I(Cw{]
} B3&ETi5NTU
public void paint(Graphics g) S+-V16{i
{ X->` ~-aj
super.paint(g); dwUs[v
java.awt.Insets ins = this.getInsets(); .|2[!7CXH
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Q6%Pp_$k
} d5lD!
public static void main(String args []) K5(:0Q.5y
{ uP2Wy3`V
HelloFrame fr = new HelloFrame("Hello"); r<