“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。 z7q%,yw3N
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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》。 B;c=eMw
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以下是用不同语言写成的Hello World程序的几个例子: #pa\2d|
Ada 8S= c^_PJ
with Ada.Text_Io; use Ada.Text_Io; e7|d=[kW
procedure Hello is 0UjyMEiK
begin Q)dT(Td9~
Put_Line ("Hello, world!"); $4h04_"
end Hello; ~UW{)]_jox
Q9q9<J7j$
M6x;BjrV
汇编语言 Y[,U_GX/R
g&
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x86 CPU,DOS,TASM Eq7gcDQ
MODEL SMALL !Bncx`pl
IDEAL SyB-iQn
STACK 100H ^Kum%<[i
3G(skphE
DATASEG 9/H^t*5t
HW DB 'Hello, world!$' ~ i'C/[P
.-%oDuB5zF
CODESEG 44|03Ty
MOV AX, @data 6\mC$: F
MOV DS, AX ASM1Y]'Z
MOV DX, OFFSET HW rr4
_8Rf
MOV AH, 09H -W6V,+of
INT 21H qL~Pjr>cF
MOV AX, 4C00H /0!$p[cjm
INT 21H FJlsWh4,6=
END Xr)g
!g/_w
+}Auk|>Dc
x86 CPU,GNU/Linux,NASM pfNThMf
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 1W7
iip,
;Enter this into "hello.asm" then type: Qv=Bq{N
;"nasm -f elf hello.asm" ?e2Y`0
;"ld hello.o -o hello" cWc$yE'
;"./hello" t5A[o7BS
o"f%\N0_8
section .data ;data section declaration C7T;;1P?
msg db 'Hello World!',0AH LVWxd}0
len equ $-msg ;string length yOM
-;h
h!~|6nj
section .text ;code section declaration "pl[(rc+u
global _start ;entry point (start of execution) %rX\
P
_start: mov edx,len ;string length =mAGD*NKu
mov ecx,msg ;string start ]X4RnV55Q
mov ebx,1 ;file handle: stdout ":z@c,
mov eax,4 ;sys_write ur`}v|ZY
int 80h ;kernel system call "SDsISWd
~.!?5(AH8z
mov ebx,0 ;return value /$<JCNGv
mov eax,1 ;sys_exit +Hi{/{k0N
int 80h ;kernel system call uk1v7#p
"
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n*Q4G}p
x86 CPU,Windows,MASM32 W>VAbm
.386 >02i8:Tp5K
.model flat,stdcall t2m ^
option casemap:none s+Cl
;Include 文件定义 =
c/3^e
include windows.inc S/)
include user32.inc bmSpbX\
includelib user32.lib <w%Yq?^
include kernel32.inc VQ/ <09e
includelib kernel32.lib *%z<P~}
;数据段 mp muziH
.data 8o%E&Jg:
szCaption db 'A MessageBox!',0 +}`p"<'u
szText db 'Hello,world!',0 ,2E`:#$
;代码段 n,1NJKX
.code ?BXP}]
start: t>m8iS>
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK he_HVRpB
invoke ExitProcess,NULL d#RF0,Y 9
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 38OIFT
end start Z={UM/6w
zd.1
mJ7`.
AWK /0X0#+kn
BEGIN { print "Hello, world!" } |~Htj4K/
LAOdH/*:
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BASIC #wq;^)>
传统版BASIC(例如GWBASIC): q^Q|.&_k /
M^0w/
10 PRINT "Hello, world!" Ma
n^\gkCi
20 END FA<Z37:
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或在提示符输入: |F8;+nAVF#
1"*Nb5s
?"Hello, world!":END U1OLI]P
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现代版BASIC(例如Quick BASIC): Q'>_59
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Print "Hello, world!" W ??;4
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以下的语句在Quick BASIC中同样有效: *8pe<:A#p
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? "Hello,world!" ]Hv*^Bak
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_.oRVYK/
BCPL &h_d|8
GET "LIBHDR" 9}? 5p]%
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Y&
LET START () BE : 8p2Jxm
$( dn:|m^<)
WRITES ("Hello, world!*N") hVTyv"
$) \=
)[
(\[jf39e
3D[:Rf[
Befunge qP%Smfp6
"!dlrow olleH">v 9;m#>a@Y
, Cb!`0%G
^_@ NzwGc+\7}
W0p#Y h:{_
s/k
Brainfuck ?eYchVq
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< eB} sg4
+++++++++++++++.>.+++.------.--------.>+.>. m
bB\~n
uL qpbn
oj,Vi-T Z
C -wG[>Y
#include <stdio.h> \&l*e
4#'^\5
int main(void) 6c;?`C
{ 'T#<OR
printf("Hello, world!\n"); (STWAwK-
return 0; g&5pfrC [
} _s*uF_:3
;dpS@;v
PHE;
C++ +9=p*3cnp
#include <iostream> 3XYIb Xnk
PLY-,Q&'
int main() 10QNV=yK7s
{ */fs.G:P
std::cout << "Hello, world!" << std::endl; v/4X[6(
return 0; E Ni%ge'":
} 7Vof7Y <
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Z7k1fv:S^
C++/CLI ~Krg8s!F&
int main() WZDokSR
{ .D M1Knj
System::Console::WriteLine("Hello, world!"); A~%g"
} : \ON+LQr
8B% O%*5`
^.><t+tM
C# (C Sharp) `Q!FMv6Y^
class HelloWorldApp o@Cn_p^X
{ $`+~QR!h
public static void Main() R'$ T6FB5
{ h&^/, G
System.Console.WriteLine("Hello, world!"); )H=[NB6J8
} 'f$?/5@@
} dBi3ZCAF
S+bWD7
/Va&k4
COBOL SgQmYaa&
IDENTIFICATION DIVISION. J6?_?XzToT
PROGRAM-ID. HELLO-WORLD. ;74DT
d$G%F $BTs
ENVIRONMENT DIVISION. XDv7#Tv_wv
O(WMTa'%
DATA DIVISION. =kZwB*7
Y-q,Ovf!
PROCEDURE DIVISION. 5{x[EXE'
DISPLAY "Hello, world!". `HZHVV$~
STOP RUN. IWbp^l+!t
L-oPb)
|2c!t$O@v
Common Lisp CI3_lWax%
(format t "Hello world!~%") %lq7; emtp
8^ ZM U{
3=eGS
DOS批处理 My43\p
@echo off @#O|
echo "Hello, world!" &,gryBN
+cplM5X
L"zgBB?K6
Eiffel myo~Qqt?
class HELLO_WORLD QIxJFr;>
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creation ~bm2_/RL
make &4$43\(D
feature `^4>^
make is nm%4L
local }A&Xxh!Fwo
io:BASIC_IO J&0wl]w|O%
do #I@[^^Vw
!!io g he=mQ-
io.put_string("%N Hello, world!") ,-NLUS
"w
end -- make AK\g-]8
end -- class HELLO_WORLD 07WIa@Q
sN an"
9!/1F !
Erlang l`w|o
-module(hello). `[HoxCV3o
-export([hello_world/0]). otnY{r*
n;T
hello_world() -> io:fwrite("Hello, World!\n"). V%KW[v<G<
UBk
5O&
;>x1)|n5
Forth Jhq5G"
." Hello, world!" CR /)OO)B-r
#(wzl
/iJhCB[QZ
Fortran @42lpreT
WRITE(*,10) FYE9&{]h
10 FORMAT('Hello, World!') !z6/.>QJ~
STOP Jj _+YfIM
END [q|Q]O0
#mFAl|O
^V;lZtZ
HTML Ognq*[om
<HTML> W&q5cz
<HEAD> ,%DAh
<TITLE> Hello World! </TITLE> x6cl(J}
</HEAD> _(A+_|
<BODY> g&(~MD2{
<p>Hello World!</p> c3 ]^f6)?
</BODY> dZ81\jdYv
</HTML> vWfef~}~
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+OuG!3+w
HQ9+ \YF!< 2|[
H 5T@'2)BI=
IXk'?9
*/h9 "B
INTERCAL N#-\JlJ)
PLEASE DO ,1 <- #13 9'L0Al~L
DO ,1 SUB #1 <- #238 Q
X5#$-H@
DO ,1 SUB #2 <- #112 thboHPml{
DO ,1 SUB #3 <- #112 nf@u7*#6
DO ,1 SUB #4 <- #0 U=1`. Ove
DO ,1 SUB #5 <- #64 `U>b6{K
DO ,1 SUB #6 <- #238 ,OFr]74\
DO ,1 SUB #7 <- #26 `pS)qx.a
DO ,1 SUB #8 <- #248 #a>!U'1|
DO ,1 SUB #9 <- #168 G6ES]
DO ,1 SUB #10 <- #24 p:n^c5
DO ,1 SUB #11 <- #16 TVh7h`Eg
DO ,1 SUB #12 <- #158 :s985sEv
DO ,1 SUB #13 <- #52 <cc0 phr
PLEASE READ OUT ,1 1OwkLy,P
PLEASE GIVE UP &WV 9%fI
e:D9;`C
G:s:NXy^
Java jWmBUHCb
public class Hello >$9yQ9&|
{ _BA_lkN+D
public static void main(String[] args) iSW73P;)
{ |*| a~t
System.out.println("Hello, world!"); dWWkO03|
} 1s\hJATfz
} D`ge3f8Wi
=ZL}Av}
DG
FvRB
JSP 7I3CPc$
<% xE[tD? M{
out.print("Hello, world!"); gQt@xNO
%> &x5ZEe4
'aWZ#GS*
r:Tb{cA
MIXAL oD2;Tdk
TERM EQU 19 the MIX console device number V zx(J)
ORIG 1000 start address b-/x
START OUT MSG(TERM) output data at address MSG PP`n>v=n
HLT halt execution 7VBw@Rh
MSG ALF "MIXAL" 7anpz%
ALF " HELL" 51'SA
B09
ALF "O WOR" _cs9R%
ALF "LD " 6KTY`'I
END START end of the program >mltE$|
#I wB
}iloX#
Nuva *}&aK}h}I
<..直接输出..> oh)l\
Hello, world! UAO#$o(
-+Dvyr
<..或者..> W"@lFUi
F<WX\q
<. 3k0%H]wt
// 不带换行 bj^m<}
? "Hello, world!" v%Q7 \X(
}}Uv0g8D
// 或者 ><7`$ 2Or
1"6k5wrIA
// 带换行 8H b|'Q|^
?? 'Hello, world!' ,p1]_D&
.> ml2z
&3?yg61Ag
sYgnH:t X
OCaml ]vFmY
let main () = }w8AnaC
print_endline "Hello world!";; ]YzAcB.R
H
>{K]7D/y
|O2PcYNu
Pascal Z.(x|Q9
program Hello; WcG&W>
begin N^N?!I
writeln('Hello, world!'); ,~iAoxD5jY
end. 0G 1o3[F
9F4|T7?
3NWAyCq-
Perl %%[TM(z
#!/usr/local/bin/perl o$k$
print "Hello, world!\n"; o>tT!8rH
t1^96@m^
Xlw=R2`)~
PHP *p!dd?8
<?php Z`KmH.l!
print("Hello, world!"); ~.PYS!" +
?> Tq8r
SZi
N9<eU!4>
uHCgIR
l>
Pike t}gqk'
#!/usr/local/bin/pike R<Tzt'z
int main() E9hWn0 e
{ _O<{H '4NO
write("Hello, world!\n"); xGA0]
_
return 0; KJfyh=AD(
} {`Z)'G\`
Oc`fQqYy
^*Fkt(ida
PL/I G#v7-&Yl6
Test: procedure options(main); S8,06/#
declare My_String char(20) varying initialize('Hello, world!'); I SmnZ@
put skip list(My_String); <,C})H?
end Test; B)dynGF8i
2ZeL
D
]eF3a.G
Prolog LsV"h<
goal |_*1/Wz@
write("hello,world!"). uBgHtjmae
RI;RE/Z
,Pm/ci(s
Python }tPl?P'`
#!/usr/local/bin/python `-\"p;Hp0
print "Hello, world!" -~k2Gy;E
s_TM!LRUcw
b1cd5
REXX 1P_bG47
say "Hello, world!" ?_r"Fg;"
NM Ajt>t
zOw]P6Gk
Ruby 8hg(6 XUG
#!/usr/bin/ruby z wW9>Y
print "Hello, world!\n" Z}wAh|N-
H5{J2M,f
wSMgBRV#^
Scheme =3p h:t
(display "Hello, world!") bJD"&h5
(newline) \^cn}db)
WXL.D_=+
nLg7A3[1v
sed (需要至少一行输入) m}(DJ?qP
sed -ne '1s/.*/Hello, world!/p' G#Ow>NJ
0l6%[U?o
~Zm(p*\T
Smalltalk 4`F*] Ft
Transcript show: 'Hello, world!' <k!G%R<9
_p.{|7
4E)[<%
SNOBOL 9P$'ON'"
OUTPUT = "Hello, world!" e1-=|!U7#
END uJ$,e5q
z4goa2@Z
G`z48
SQL 4
#N#[;M
create table MESSAGE (TEXT char(15)); ;`+,gVrp
insert into MESSAGE (TEXT) values ('Hello, world!'); "$&F]0
select TEXT from MESSAGE; s7?kU3y=s
drop table MESSAGE; ?H`LrL/k
GZw<Y+/V"5
)94R\f
Tcl &jJgAZ!
#!/usr/local/bin/tcl v=4TU\b%
puts "Hello, world!" }S&{ &gh
CUG6|qu
q8oEb
TScript 1@y?OWC
? "Hello, world!" xQ[YQ!l
~EN@$N^h
v<)
}T5~r
Turing )Q8Q#S
put "Hello, world!" ei5 S <n
itP_Vxo/H
^uj+d"a)
UNIX-style shell ':,LZ A8A
程序中的/bin/sh可改为您使用的shell @l?%]%v|
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r9
#!/bin/sh iqU}t2vFrj
echo 'Hello, world!' IFgF5VG6g
v/.2Z(sZ
+bXZE
GUI p)oW'#@a
OjCT%6hy;
Delphi _Sg29qFK
program HelloWorld; Fh"S[e
uses |Mh;k6
Dialogs; >}9TdP/oT
begin n33SWE(
ShowMessage('Hello, World!'); JUE>g8\b
end. uPqPoI>N!
w+}dm^X
'i,<j
s3\f
Nuva uYl ?Q
<. My
^pQ]@
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ^v},Sa/ot]
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