“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。 %#_"Ie
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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》。 )7aUDsu>4
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以下是用不同语言写成的Hello World程序的几个例子: Mzg zOM
Ada *dAQ{E(rO
with Ada.Text_Io; use Ada.Text_Io; {+3
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procedure Hello is @sr~&YhA
begin hR4\:s+[
Put_Line ("Hello, world!"); MQ#nP_i
end Hello; xS'Kr.S
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iJ&jg`"=F
汇编语言 \PzJ66DL!
UR|Au'iu
x86 CPU,DOS,TASM f0|wN\
MODEL SMALL [yhK4A
IDEAL w-j^jU><3
STACK 100H c%+_~iBUN
u*S-Pji,x
DATASEG 2JhE`EVH
HW DB 'Hello, world!$' `x:O&2
5$?)f&M
CODESEG =j"bLX6;
MOV AX, @data 9_b_O T
MOV DS, AX 3
,f3^A
MOV DX, OFFSET HW *'n L[]
MOV AH, 09H R*`=Bk0+
INT 21H 2PC:F9dh\
MOV AX, 4C00H t ch;_7?
INT 21H Djr/!j
END Bfu/w
v8y !zo'
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x86 CPU,GNU/Linux,NASM GboZ T68
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). vNQ|tmn
;Enter this into "hello.asm" then type: mo D)^':.
;"nasm -f elf hello.asm" {
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;"ld hello.o -o hello" *AG01# ZF
;"./hello" }a"koL
:I2spBx
section .data ;data section declaration
<64#J9T^
msg db 'Hello World!',0AH pM-mZ/?
len equ $-msg ;string length }1mkX\wWP
"#.L\p{Zy
section .text ;code section declaration *pYawT
global _start ;entry point (start of execution) P#9Pq,I
_start: mov edx,len ;string length b=kY9!GN,v
mov ecx,msg ;string start zmhAeblA
mov ebx,1 ;file handle: stdout pD]2.O
mov eax,4 ;sys_write AHzm9U @
int 80h ;kernel system call 5^Ny6t
~cf)wrP
mov ebx,0 ;return value wAo6:)
mov eax,1 ;sys_exit (@NW2
int 80h ;kernel system call r2\}_pIj
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YbF}>1/"
x86 CPU,Windows,MASM32 }O\g<ke:u
.386 NNBT.k3)
.model flat,stdcall U45-R-
option casemap:none Rl'xEtaN
;Include 文件定义 b_)SMAsO7
include windows.inc +I@2,T(eG
include user32.inc 2RdpVNx\y
includelib user32.lib S[CWrPaDQ
include kernel32.inc :BF
WX
includelib kernel32.lib v}<z_i5/C.
;数据段 bYYjP.rcF
.data hVdGxT]6
szCaption db 'A MessageBox!',0 ;x&3tN/I
szText db 'Hello,world!',0 ;\]DZV4?)r
;代码段 Uv(}x7e)
.code q)PSHr=Z
start: mhF@S@
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK m/WDJ$d
invoke ExitProcess,NULL qc3?Aplj
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> r#d]"3tH
end start \5b<!Nl
&<) _7?
crJNTEz
AWK R%JEx3)0m
BEGIN { print "Hello, world!" } 6wb M$|yFj
Xm6M s<z6
P.~sNd oJ
BASIC Y3xEFqMU
传统版BASIC(例如GWBASIC): &WdP=E"
QzYaxNGv
10 PRINT "Hello, world!" XV!UeBq
20 END 72y!cK6
xH-} <7
或在提示符输入: 5d|+ c<
mW)"~sA
?"Hello, world!":END b{W ,wn
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现代版BASIC(例如Quick BASIC): !p)cP"fa
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Print "Hello, world!" h#8{fr)6
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以下的语句在Quick BASIC中同样有效: b;I!CyD
+Jc-9Ko\c;
? "Hello,world!" UKSI"/8I
a[gN+DX%L
1 z[blNs&
BCPL <JJi
GET "LIBHDR" l1RFn,Tzr
{XYf"ONi
LET START () BE CY9`HQ1
$( 5TdI
WRITES ("Hello, world!*N") NO)vk+
$) v aaZ
1'* {VmM
j!
cB
Befunge &nZ.$UK<
"!dlrow olleH">v o=(>#iVM
, YJwz*@l
^_@ %K]nX#.B&
%u|qAF2uS
>:P3j<xTv
Brainfuck c[0$8F>
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< !PrO~
+++++++++++++++.>.+++.------.--------.>+.>. XC{(O:EG
Wkv**X}
Afa{f}st
C J XnPKAN
#include <stdio.h> c5rQkDW
IA;KEGJ
int main(void) mwTn}h3N
{ >Y< y]vM:
printf("Hello, world!\n"); 2jx+q
return 0; z95V 7E
} Bf88f<Z
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J0|}u1?l
C++ wGQ{
#include <iostream> Dl/_jM
XT_BiZ%l5O
int main() ?8C+wW
{ :<IW'
std::cout << "Hello, world!" << std::endl; |,&!Q$<un
return 0; 0+:.9*g=k
} C5RDP~au
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y$V{yh[:
C++/CLI c)E[K-u
int main() KwQO,($,]
{ Da-(D<[0
System::Console::WriteLine("Hello, world!"); 8h20*@wSN
} -{b1&
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vx
e#HP+b$
C# (C Sharp) [Iihk5TT
class HelloWorldApp 3Yj}ra}
{ |PJW2PN
public static void Main() D#t5*bwK
{ 4+k:j=x
System.Console.WriteLine("Hello, world!"); fZ g*@RR
} $=m17GD
} RLHe;-*b]I
IfXLnD^||
fF[ g%?w
COBOL dju&Ku
IDENTIFICATION DIVISION. {M~!?#<K
PROGRAM-ID. HELLO-WORLD. 8:xQPd?3
o"1us75P
ENVIRONMENT DIVISION. j'J*QK&Q
^:)&KV8D|
DATA DIVISION. S8)awTA9
\!V6` @0KC
PROCEDURE DIVISION. %<muVRkB\
DISPLAY "Hello, world!". GyPN)!X@.&
STOP RUN. :A{-^qd(
!yI)3;$*
TQ2Tt"
Common Lisp 8c|IGC
(format t "Hello world!~%") \%Smp2K
M{4_BQ4$
G<dXJ ]\\
DOS批处理 #dfW1@m
@echo off er#=xqUY
echo "Hello, world!" X0$_KPn
Go67VqJr
TnaIRJ\B
Eiffel L
wu;y@[
class HELLO_WORLD Fszk?0T
B&$89]gs|
creation 2$ rq
make 0Yjy
feature 5~X%*_[],
make is I^|bQ3sor
local "}EbA3
io:BASIC_IO f\^QV
do E{ ,O}
!!io |#B"j1D,H
io.put_string("%N Hello, world!") N.`]D)57
end -- make By_Ui6:D
end -- class HELLO_WORLD ~<U3KB
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L' pZ
Erlang ybG)=0
-module(hello). ;~bn@T-
-export([hello_world/0]). }a1UOScO0
hF 1/=;>
hello_world() -> io:fwrite("Hello, World!\n"). PS22$_}
xVyUUzXs
8(D}y\
Forth h,+=h;!
." Hello, world!" CR D=>^m=?0
9wAc&nl-Y
{ybuHC
Fortran k#(cZ
WRITE(*,10) ^IpiNY/%Q
10 FORMAT('Hello, World!') ^!qmlx*
STOP S\ZAcz4
END Mg$9'a"[\
,no:6
sriz
b
HTML H=#Jg;_w
<HTML> Ag6
(
<HEAD> \xxVDr.
<TITLE> Hello World! </TITLE> n y)P
</HEAD> ;NeP&)Td
<BODY> !f-o,RJ
<p>Hello World!</p> Zg&\K~OC
</BODY> i)i)3K2
</HTML> \2xBOe-a]
:(`>bY
Xh"iP %
HQ9+ q'U5QyuC
H gj,J3x4TK/
nln6:^w
&2=KQ\HO
INTERCAL E$Pjp oQTf
PLEASE DO ,1 <- #13 BpG'e-2
DO ,1 SUB #1 <- #238 ~vV)|
DO ,1 SUB #2 <- #112 d$rUxqB.
DO ,1 SUB #3 <- #112 Bq]O &>\hX
DO ,1 SUB #4 <- #0 u^zitW!X$
DO ,1 SUB #5 <- #64 \%Rta$O?S
DO ,1 SUB #6 <- #238 m`IQ+,e
DO ,1 SUB #7 <- #26 m8j-lNu
DO ,1 SUB #8 <- #248 lp-Zx[#`}C
DO ,1 SUB #9 <- #168 psX%.95Y
DO ,1 SUB #10 <- #24 <>i+R#u{
DO ,1 SUB #11 <- #16 ]}7rWs[|1
DO ,1 SUB #12 <- #158 -wQ^oOJ
DO ,1 SUB #13 <- #52 !5%5]9'n@*
PLEASE READ OUT ,1 BDkBYhz;7
PLEASE GIVE UP _G[I2]
h<1dTl*
~po%GoH(K
Java 2HGD{;6>v{
public class Hello M:Y*Tb6w
{ $l,Zd6<1q
public static void main(String[] args) `XSc >
{ mzE$aFu8
System.out.println("Hello, world!"); n_aNs]C9R
} )s<WG}
} 2"+x(Ax
[s{r$!Gl
afF+*\xXN
JSP |@ZqwC=
<% *e3L4 7"G
out.print("Hello, world!"); .z$Sm
%> .D,?u"fk|
dxn0HXU
kV\-%:-
MIXAL `e?;vA&
TERM EQU 19 the MIX console device number }WO9!E(
ORIG 1000 start address 3 "l
F
START OUT MSG(TERM) output data at address MSG U8K&Q4^
HLT halt execution ,.oa,sku
MSG ALF "MIXAL" o'^;tLs15
ALF " HELL" <DXmZ1
ALF "O WOR" YO(:32S
ALF "LD " umm \r&]A
END START end of the program VZ2.w4b
h7EUIlh"
cK|rrwa0
Nuva Kunle~Ro
<..直接输出..> EvqUNnjR
Hello, world! &gWMl`3^*!
a:yB%:2
<..或者..> #u8*CA9
rkfQr9Vc
<. Mu'^OX82
// 不带换行 nY{i>Y
? "Hello, world!" Z[#I"-Q~:
66~e~F}z
// 或者 Ii~; d3.
_\,rX\
// 带换行 px w{
?? 'Hello, world!' _x\-!&[p
.> 'bB>$E
"JzfL(yt
=$b-xsmeG
OCaml {A]k%74-a
let main () = a9#W9eP
print_endline "Hello world!";; ]`zjRRd
3TU'*w
&
m!#_CQ:
Pascal 9U2Px$E
program Hello; @+?+6sS
begin ,^.S0;D,Z
writeln('Hello, world!'); !Z
U_,[
end. G%2P
o-SRSu
`GvA241
Perl T@(6hEmP,
#!/usr/local/bin/perl J#6LSD@(O
print "Hello, world!\n"; xik`W!1S
4JGE2ArR
R]CZw;zS_
PHP qPsyqn?Y|
<?php ]dd[WHA
print("Hello, world!"); w`M]0'zls
?> R `;o!B}[
s,84*6u
8dc538:q}
Pike q^u1z|'Z
#!/usr/local/bin/pike &c20x+
int main() =fo4x|{O
{ v-ThdE$G#
write("Hello, world!\n"); +d =~LQ}*
return 0; Am#m>^!qb
} 0[lS(K
(Ar?QwP9>
j\!
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PL/I ,SAbC*nq
Test: procedure options(main); (%i!%{!]
declare My_String char(20) varying initialize('Hello, world!'); b 1cd&e
put skip list(My_String); 3KtAK9PT
end Test; ]+AAT=B<!
.
/Y&\<
R3$@N
Prolog U%L
-NMe
goal 0X.TF
write("hello,world!"). C+`xx('N9
kr#I{gF
3Mw}R6g@#
Python .U<F6I:<md
#!/usr/local/bin/python ?C}sR: K/
print "Hello, world!" ^dh=M5xz)
2pz4rc
(X*9w##x(
REXX W;.{]x.0
say "Hello, world!" )qmFK
.;%
"tKNlHBu'
4x(F&0
Ruby (oF-O{
#!/usr/bin/ruby lO[E[c G
print "Hello, world!\n" ;t|,nz4kJ
|f<9miNu
*(icR
Scheme Y3<b~!f
(display "Hello, world!") `&H04x"Y$>
(newline) bTiBmS
W=3? x
W]zwghxH
sed (需要至少一行输入) %uua_)
sed -ne '1s/.*/Hello, world!/p' zXjwnep
/w0w*nH
3+%nn+m
Smalltalk `4skwvS=
Transcript show: 'Hello, world!' C;ptir1G;
$,@JYLC2
^iuo^2+
SNOBOL nn'Af,ko/
OUTPUT = "Hello, world!" ;5N41_hG
END 12 -EDg/1
fq=:h\\G
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