“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。 m[%&KW(
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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》。 +jQW 6k#
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以下是用不同语言写成的Hello World程序的几个例子: 3rOv j&2
Ada f`vB$r>
with Ada.Text_Io; use Ada.Text_Io; ALPZc:
procedure Hello is k`xPf\^tf
begin Dy0RZF4_
Put_Line ("Hello, world!"); *\-6p0~A
end Hello; joYj`K
dTS7l02
CSIW|R@
汇编语言 JrS|Ib)6
4fQ<A <2/
x86 CPU,DOS,TASM kOeW,:&65
MODEL SMALL EtKy?]i
IDEAL T&cf6soo
STACK 100H 8) 'OXR0/
l2z@t3{
DATASEG ig jr=e
HW DB 'Hello, world!$' G4]T
E ekX|*
CODESEG @2Z{en?
MOV AX, @data T[q2quXgk
MOV DS, AX
qN[U|3k
MOV DX, OFFSET HW `BF +)fs
MOV AH, 09H V+-%$-w>
INT 21H -I'#G D>
MOV AX, 4C00H Jro)
INT 21H +<&_1%5+
END f6u<.b
p~BEz?e
AwUc U;"9>
x86 CPU,GNU/Linux,NASM ;",W&HQbE
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). !w{4FE74
;Enter this into "hello.asm" then type: t#=W'HyW8
;"nasm -f elf hello.asm" |!,;IoZ
;"ld hello.o -o hello" &r doMc;
;"./hello" sA#}0>`3S
^#KkO3
section .data ;data section declaration _?CyKk\I
msg db 'Hello World!',0AH K>N\U@@8i
len equ $-msg ;string length 0EKi?vP@y7
}k~ih?E^s
section .text ;code section declaration yxik`vmH
global _start ;entry point (start of execution) U]ynnw4
_start: mov edx,len ;string length o7;lR?
mov ecx,msg ;string start e?,n>
mov ebx,1 ;file handle: stdout 58V`I5_
mov eax,4 ;sys_write `zwXfY,%
int 80h ;kernel system call r roI
X @RS
/
mov ebx,0 ;return value ,` 6O{Z~
mov eax,1 ;sys_exit 2Jo|]>nl}u
int 80h ;kernel system call SYkwM6
@>cz$##`
UQc!"D
x86 CPU,Windows,MASM32 <A^sg?s<'
.386 kUGOkSP8[
.model flat,stdcall C.].HQ
option casemap:none ($'W(DH4
;Include 文件定义 2RG6m=Y8y
include windows.inc 0Ta&o-e
include user32.inc -n FKP&P
includelib user32.lib X|y(B%:
include kernel32.inc vJ9I z
includelib kernel32.lib VddHK
;数据段 d<K2
\:P{}
.data R-LMV
szCaption db 'A MessageBox!',0 ( RO-~-
szText db 'Hello,world!',0 q=(%
]BK
;代码段 & %A&&XT9
.code !mHMFwvS
start: eu={6/O
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `Y O(C<r-
invoke ExitProcess,NULL Pm&h v*D
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> & 6'Rc#\P
end start sPX&XqWx
FJ,"a%m/Q
}C4wED.
AWK u}3D'h
BEGIN { print "Hello, world!" } Znr@-=xZO*
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BASIC ~jC+6v
传统版BASIC(例如GWBASIC): e[
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1r$*8|p
10 PRINT "Hello, world!" ja^_Lh9
20 END .DNPL5[v
!]5}N^X
或在提示符输入: !7Eodq-0
;/:Sx/#s
?"Hello, world!":END $vrkxn
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现代版BASIC(例如Quick BASIC): wXjidOd$
TyDh\f!w
Print "Hello, world!" 3xg9D.A
qv& Bai[
以下的语句在Quick BASIC中同样有效: Q2/65$nW
/sfJ:KP0
? "Hello,world!" $Nd,6w*`
?iZ2sRWR6
sSd/\Ap
BCPL w4(L@1
GET "LIBHDR" rk6K0TQ8
27k(`{K
LET START () BE _Jy7` 4B.
$( F~q(@.b
WRITES ("Hello, world!*N")
N=AHS
$) Kv<f<>|L
pO_IUkt
}}"pQ!Z
Befunge h PL]B_<
"!dlrow olleH">v }R`Rqg-W
, |lt]9>|
^_@ ],_+J*
)/?H]o$NU
d]poUN~x
Brainfuck h5SJVa
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< dgL>7X=7
+++++++++++++++.>.+++.------.--------.>+.>. D/?Ec\t
OvAhp&k
+$|fUn{
C @/F61Ut
#include <stdio.h> f(Y_<%
/a'1W/^2
int main(void) N0H=;CIQ
{ M?!@L:b[
printf("Hello, world!\n"); H1I^Vij
return 0; y~fKLIoz"
} Wl |5EY
y{S8?$dU$:
d2V X\
C++ y(o)}m*0
#include <iostream> p}^5ru
-QroT`gy
int main() ,Cb3R|L8
{ 12a`,~
std::cout << "Hello, world!" << std::endl; /TyGZ@S>m
return 0; gs5(~YiT6
} ]I [~0PCSX
@(Y!$><Is
TjyL])$
C++/CLI 8q@Z
int main() -
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{ <%HRs>4
System::Console::WriteLine("Hello, world!"); z@yTkH_
} [ n7>g
x2rAB5r6
#L~i|(=U5
C# (C Sharp) &)Xc'RQ.C
class HelloWorldApp IdQ./@?
{ X/yq<_ g
public static void Main() b~J)LXj]w
{ 1~*1W4};F8
System.Console.WriteLine("Hello, world!"); fes s6=k
} b,Oh8O;>
} N7?B"p/
1Y|a:){G
j-":>}oW2.
COBOL `
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C7
IDENTIFICATION DIVISION. hW~.F
PROGRAM-ID. HELLO-WORLD. Ttt'X<9
uMJ\
ENVIRONMENT DIVISION. /]_ t->
Ot2o=^Ng
DATA DIVISION. q.c)>=!.
Y !?'[t
PROCEDURE DIVISION. (k?HT'3)
DISPLAY "Hello, world!". G3~`]qf
STOP RUN. d~Z\%4
b6bs .
%up?70
Common Lisp Ax;=Zh<DAv
(format t "Hello world!~%") 1z?}'&:
l4>^79* *
m1l6QcT1
DOS批处理 `ePC$Ovn
@echo off -QrC>3xZR
echo "Hello, world!" V)j[`,M:
-L1785pB85
T3X'73M
Eiffel Rff F:,b
class HELLO_WORLD wDJ`#"5p{
']r8q %
creation ''y.4dvX
make u^1#9bAW8
feature KJA
:;
make is Y{p$%
local g8W,Xq+
io:BASIC_IO DxJ;C09xNa
do XBQt:7[<
!!io zx3gz7>k;
io.put_string("%N Hello, world!") ^7-zwl(>?N
end -- make 0cd_l
2f#g
end -- class HELLO_WORLD S6TNu+2w4
x HRSzYn$
bGPE0}b
Erlang 7?$?Yu
-module(hello). j/FLEsU!R
-export([hello_world/0]). 5*AXL.2ih
Zt `Tg7m
hello_world() -> io:fwrite("Hello, World!\n"). i[v4[C=WB!
hF%M!otcJ-
rtV`Q[E
Forth KK){/I=z
." Hello, world!" CR &mwd0%4
E/P~HE{
.ZpOYhk
Fortran i%hCV o
WRITE(*,10) ?sf<cFF
10 FORMAT('Hello, World!') 1E+12{~m"i
STOP F (*B1J2_g
END l~c[} wv
CMa6':~
t`Kbm''d[
HTML 6b2UPI7m~
<HTML>
@Z jT_
<HEAD> b/wpk~qi
<TITLE> Hello World! </TITLE> |9CikLX)7
</HEAD> (_T{Z>C/J
<BODY> 6':iW~iI
<p>Hello World!</p> o).deP
s-
</BODY> B5b:znW2@
</HTML> #b/qR^2qW
'7Gv_G_
g'8Y5x[
HQ9+ *g/klK
H =[6^NR(
YW7W6mWspS
,>GHR{7>(
INTERCAL =>jp\A
PLEASE DO ,1 <- #13 J:xGEa t
DO ,1 SUB #1 <- #238 B,%Vy!o
DO ,1 SUB #2 <- #112 dY*q[N/pO
DO ,1 SUB #3 <- #112 [q<'ty
DO ,1 SUB #4 <- #0 kv+%
DO ,1 SUB #5 <- #64
}qNc `8h
DO ,1 SUB #6 <- #238 Gt w>R
DO ,1 SUB #7 <- #26 ^L[:DB{Z
DO ,1 SUB #8 <- #248 2jsbg{QS#_
DO ,1 SUB #9 <- #168 =BJe)!b
DO ,1 SUB #10 <- #24 <W4F`6`x
DO ,1 SUB #11 <- #16 iUx\3d,
DO ,1 SUB #12 <- #158 )t6]F6!_
DO ,1 SUB #13 <- #52 ~zVxprEf_
PLEASE READ OUT ,1 mk-{@$Q Jb
PLEASE GIVE UP XzUGlrp:Y#
(]|h6aI'}
x9_mlZ
Java
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public class Hello C|'DKT4M&
{ "yWw3(V2>
public static void main(String[] args) PRKZg]?
{ )!T~l(g
System.out.println("Hello, world!"); ex3Qbr
} 6TtB3;5
} La4S/.
U{U"%XdO
} M#e\neii
JSP ?,} u6tH
<% $3-vW{<
out.print("Hello, world!"); ys[Li.s:
%> }F`|_8L*v)
oMh$:jR $
odRiCiMH
MIXAL 6Rc=!_v^
TERM EQU 19 the MIX console device number !jCgTo
y
ORIG 1000 start address i?00!t
START OUT MSG(TERM) output data at address MSG 'h>uR|
HLT halt execution |V9[aa*c
MSG ALF "MIXAL" d*(aue=
ALF " HELL" 1b,a3w(:1
ALF "O WOR" &!!*xv-z
ALF "LD " 5> k:PKHL
END START end of the program ?jx]%n fV
VF]AH}H8I
nm'l}/Ug
Nuva 80xr zv
<..直接输出..> _z\/{
Hello, world! +7Ws`qhEe
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<..或者..> g:
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9}573M
<. n3^(y"q
// 不带换行 ho]:)!|VY
? "Hello, world!" jHLs
5%
D=tZ}_'{t
// 或者 $a(-r-_Fi]
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// 带换行 sZ;|NAx)
?? 'Hello, world!' D6 B-#u!M
.> @^{Hq6_`
mxc)Wm<4
Q7%4 `_$!
OCaml kfy!T rf
let main () = 6Q.S
print_endline "Hello world!";; .l}Ap7@
H4/wO
@AyteHK
Pascal \Mf>X\}
program Hello; /{M<FVXK+|
begin YQVo7"`%
writeln('Hello, world!'); &|v)
end. p/H.bG!z
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*~rj!N?;
Perl Q
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#!/usr/local/bin/perl
=c8}^3L~7
print "Hello, world!\n"; 7"(!]+BW!O
TBlSZZ-55]
_O9V"DM
PHP rb*|0ST
<?php B2`S0 H
print("Hello, world!"); VPLf(
?> B(Sy.n
[&x9<f6
`lhw*{3A
Pike 8K%N7RL|
#!/usr/local/bin/pike G0FzXtu)q
int main() }nmlN
{ 2YD\KXDo
write("Hello, world!\n"); b@CB +8$
return 0; n1[c\1
} t,/ G
)"?4d[ 5
SV7;B?e%Y
PL/I uF ?[H -y
Test: procedure options(main); $|4@Zx4vf
declare My_String char(20) varying initialize('Hello, world!'); [W[{
4 Xu
put skip list(My_String); 3JazQU
end Test; #3uv^m LGa
d;i|s[6ds`
A5l Cc
b
Prolog ts]e M1;
goal FU`(mQ*Yd
write("hello,world!"). | /.J{=E0K
5Qgu:)}
AFLtgoXn:
Python ?K1B^M=8
#!/usr/local/bin/python dFg>uo
print "Hello, world!" tV}!_
JK,MK|
#w$Y1bjn
REXX V&Y`?Edc
say "Hello, world!" `Rq=:6U;3
_nGx[1G( 5
E)b$;'
Ruby R2bq hSlF
#!/usr/bin/ruby _&KqmQ8$7
print "Hello, world!\n" Im]@#X
=H95?\}T[
WtSs:D
Scheme z]7 WC
(display "Hello, world!") r>mBe;[TX
(newline) b?wrOS
Dy08.Sss
b,!C8rJ
sed (需要至少一行输入) 1{uxpYAP=
sed -ne '1s/.*/Hello, world!/p' kG^76dAQL
n ]%2Kx
B|`?hw@g+
Smalltalk 5epI'D
Transcript show: 'Hello, world!' 0KA*6]h t
xC76jE4
Bk8}K=%w
SNOBOL <JPN<
Kv
OUTPUT = "Hello, world!" cXweg;
END q~{)
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c
r=Q39{
gC7!cn
SQL
manw;`Q
create table MESSAGE (TEXT char(15)); RB>=#03
insert into MESSAGE (TEXT) values ('Hello, world!'); K)SWM3r
select TEXT from MESSAGE; A|biOz
drop table MESSAGE; .:_'l)-
3@Ndn
nnlj#
Tcl Z[O
hZ 9
#!/usr/local/bin/tcl eqtZU\GI>
puts "Hello, world!" s.1F=u9a
dCx63rF`G
uYW4$6S3
TScript >`QBN1 Y
? "Hello, world!" l5z//E}W
_{|a<Keq|
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