“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。 ^urDoB:
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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》。 )K2HK&t:
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以下是用不同语言写成的Hello World程序的几个例子: 95V@X
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Ada ^k\e8F/
with Ada.Text_Io; use Ada.Text_Io; ERN>don2
procedure Hello is R,Vd.-5M
begin p*P)KP
Put_Line ("Hello, world!"); _H/8_[xk
end Hello; NG6& :4!
pf7it5
x_dy~(*
汇编语言 jt.3P
tq|hPd<C
x86 CPU,DOS,TASM mN19WQ(r
MODEL SMALL Q0ON9gqqv
IDEAL (zFi$
STACK 100H Qg<(u?7N
d09k5$=gJ
DATASEG Ho
*AAg
HW DB 'Hello, world!$' x UD-iSY
Ny%(VI5:
CODESEG ~Onoe $A[<
MOV AX, @data ,1"KHv
MOV DS, AX q')R4=0
K
MOV DX, OFFSET HW 1N>|yQz
MOV AH, 09H qC?:*CXH
INT 21H GF^071]G
MOV AX, 4C00H e[#j.|m
INT 21H u5%7}<nNi
END q+vx_4
oTuOw|[
#gcF"L||
x86 CPU,GNU/Linux,NASM '&|=0TDd+
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ksN+?E4w
;Enter this into "hello.asm" then type: WpRc)g:
;"nasm -f elf hello.asm" iS<I0\D
;"ld hello.o -o hello" JQ@E>o7_
;"./hello" k4[|'Dk?
!f+H,]D"
section .data ;data section declaration hBX!iukT|{
msg db 'Hello World!',0AH ynhmMy%
len equ $-msg ;string length 8Bjib&im
/Dj=iBO
section .text ;code section declaration 7F{3*`/6
global _start ;entry point (start of execution) `p;I}
_start: mov edx,len ;string length AQiwugs
mov ecx,msg ;string start $
.
9V&
mov ebx,1 ;file handle: stdout vsl]92xI
mov eax,4 ;sys_write H,u<|UMM_
int 80h ;kernel system call nPy$D-L,
X'qU*Eo
mov ebx,0 ;return value
ftF@Wq1f
mov eax,1 ;sys_exit pj?f?.^
int 80h ;kernel system call L>RP-x>
u2?|Ue@[
Tap.5jHL
x86 CPU,Windows,MASM32 j+,d^!
.386 aN8|J?JH
.model flat,stdcall ZGKu>yM
option casemap:none 4QIX19{"
;Include 文件定义 Z
Z:}AQ
include windows.inc CyXRi}W.
include user32.inc |='z{WS
includelib user32.lib >^*+iEe
include kernel32.inc 2
Cv4=S
includelib kernel32.lib 5jgR4a*_v
;数据段 &b%zQ4%d-`
.data +N:o-9
szCaption db 'A MessageBox!',0 X6@WwM~qz
szText db 'Hello,world!',0 <BMXCk
;代码段 t_$2CRG#
.code 'DL`Ee\
start: B=^)Ub5'
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK [8=vv7wS
invoke ExitProcess,NULL ;E3>ay6m8
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 9vGu0Um
end start BlA_.]Sg$
Z:sg}
4O )1uF;
AWK 0dGAP
BEGIN { print "Hello, world!" } P'Ux%Q+B>
Vt".%d/`7
$+Z)
BASIC d\R,Q
传统版BASIC(例如GWBASIC): <FcG
oGK
sP;nGQ.eN
10 PRINT "Hello, world!" 0;AA/
20 END 0 Tx{3#
p8h9Ng*&`
或在提示符输入: [f1
(`<
d(:8M
?"Hello, world!":END =WyZX 7@R
ebUBrxZX
现代版BASIC(例如Quick BASIC): $Bs {u=+w
=F]FP5V
Print "Hello, world!" 3L_\`Ia9
VcSVu
以下的语句在Quick BASIC中同样有效: X\@C.H2ttY
AP7Yuv`
? "Hello,world!" D(AXk8Vub
i+S)
K
bzuEfFaL
BCPL :y%/u%L
GET "LIBHDR" QLEKsX7p>
BGD8w2
LET START () BE Nn~~!q
$( ||hb~%JK6
WRITES ("Hello, world!*N") \{Z;:,S
$) 52 fA/sx
ZniB]k1
JORGj0v
Befunge
|)b6>.^
"!dlrow olleH">v sk,ox~0R
, g`vny )\7/
^_@ }z _
l_P-j96WD
G7qG$wd8h
Brainfuck H:t$'kb`
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< b\vKJ2
+++++++++++++++.>.+++.------.--------.>+.>. hyCh9YOu)
tiB_a}5IB
_aFl_\3>
C trPAYa}W
#include <stdio.h> 7n8~K3~;
Hv
sob
int main(void) b J=Jg~&
{ `k[-M2[
printf("Hello, world!\n"); s \;" X
return 0; Bg5Wba%NK
} v(B<Nb
S1p;nK
Xu<k3oD7
C++ kbTm^y"
#include <iostream> lE;Ewg
WN{ 9
int main() Pz>s6 [ob
{ hd>aZ"nm1
std::cout << "Hello, world!" << std::endl; >XY`*J^
return 0; UR7g`/
} F~%]6^$w
)PG6gZYW
"uuVy$6C
C++/CLI L\)ZC
int main() ?nofUD.
{ =Z P%mW&;}
System::Console::WriteLine("Hello, world!"); wfU7G[
} tZ}
v%3
U*(izD
c_-drS
C# (C Sharp) }4Tc
class HelloWorldApp +=q$ x Ia
{ LQtj~c>X-|
public static void Main() {Or;
{ X9p.gXF
System.Console.WriteLine("Hello, world!"); KNS.Nw7
} !n*
+(lZ
} *+j*{>E
V.O(S\
7![,Q~Fy
COBOL 3&u&x(
IDENTIFICATION DIVISION. AG!w4Ky`
PROGRAM-ID. HELLO-WORLD. } \HN&@
Sz^
veh?
ENVIRONMENT DIVISION. y.WEj?EL
4 !y%O
DATA DIVISION. LXbP 2
^.1c{0Y^0
PROCEDURE DIVISION. J4Nln
DISPLAY "Hello, world!". k`0>36
STOP RUN. ( M7pT
G'6@+$ppS
;.TRWn#
Common Lisp k Mu8"Az
(format t "Hello world!~%") @&X|5p"[g
&;+-?k|
VY~yg*
DOS批处理 ^:#D0[
@echo off GM3f-\/
echo "Hello, world!" ~ ip,Nl
K{[%7AM
nq6@6GRG
Eiffel 95YL]3V
class HELLO_WORLD
/% M/
%KmiH
;U
creation AS\F{ !O
make (CsD*U`h
feature S4G^z}{_
make is kg'o&^/=
local KU8Jbl*
io:BASIC_IO CaL\fZ
do =>M^02"
!!io BZR:OtR^
io.put_string("%N Hello, world!")
hRs&t,{&
end -- make QKr,g
end -- class HELLO_WORLD 8P1=[i]
*T5!{
\=6l9Lrj>h
Erlang
\4v]7SV
-module(hello). C!fMW+C@
-export([hello_world/0]). /7}It$|nhy
paKSr|O
hello_world() -> io:fwrite("Hello, World!\n"). %O! v"Xh
hRK/T7v
@JyK|.b#0
Forth v"#mzd.tW
." Hello, world!" CR @Ub"5Fl4
g7OqX \
=Ur}~w&H8
Fortran Z@]e{zO
WRITE(*,10) DV<` K$ET
10 FORMAT('Hello, World!') bdQ_?S(
STOP (]Y 5eM
END K95p>E`9e
2vAQ
a2
Y;xe
HTML ( 5tvfz%
<HTML> w*oQ["SL
<HEAD> aVK3?y2
<TITLE> Hello World! </TITLE> "a8j"lPJ
</HEAD> (^u1~1E 5
<BODY> L1Iz<>
<p>Hello World!</p> E#ul IgD
</BODY> %jJ>x3$F
</HTML> Q4f/Z
V>A.iim
x)rM/Kq
HQ9+ :k.NbN$i\
H %2XHNW
`<\1[HJ\
$CY't'6Hn
INTERCAL vfq%H(
PLEASE DO ,1 <- #13 *
v75O7l
DO ,1 SUB #1 <- #238 1#0{@35
DO ,1 SUB #2 <- #112 0IfKJ*]M
DO ,1 SUB #3 <- #112 q^r#F#*1l
DO ,1 SUB #4 <- #0 ($}`R
xj1@
DO ,1 SUB #5 <- #64 $aN&nhoO<
DO ,1 SUB #6 <- #238 "QWq_R
DO ,1 SUB #7 <- #26
jz5qQt]^
DO ,1 SUB #8 <- #248 *g[^.Sg
DO ,1 SUB #9 <- #168 xYhrO
DO ,1 SUB #10 <- #24 1. rj'
DO ,1 SUB #11 <- #16 A9kzq_3
DO ,1 SUB #12 <- #158 Z| V`B `
DO ,1 SUB #13 <- #52 _ B5gR
PLEASE READ OUT ,1 iv>SsW'p_
PLEASE GIVE UP D,g1<:<
%YSu8G_t
;ByOth|9P
Java k&.Jk
B"
public class Hello [&nh5|f
{ .] sf0S!
public static void main(String[] args) ^",ACWF4Sk
{ Wh%ucX&
System.out.println("Hello, world!"); e}.^Tiwd]
} <~n$1aA
} iTV) NsC}
)I$q 5%q8
ODC8D>ZYl
JSP RhvfC5Hq
<% >B2q+tA
out.print("Hello, world!"); ^pe{b9c
%> {FG|\nPw
N1}={yF.fQ
=@8H"&y`
MIXAL ^>N]H>0'S
TERM EQU 19 the MIX console device number S -'fS2
ORIG 1000 start address YcN!T"wJ@
START OUT MSG(TERM) output data at address MSG 0#YX=vjX7
HLT halt execution zdEPDdB
MSG ALF "MIXAL" E)9yH\$6
ALF " HELL" kr9gK~
ALF "O WOR" e4z1`YLsG
ALF "LD " v!FMs<
END START end of the program ~2zMkVH
acw4B5]
v^_mFp-}\
Nuva en:4H
<..直接输出..> YNBHBK4;
Hello, world! 3^Q]j^e4Ny
W{rt8^1
<..或者..> +\{&2a?
yx<WSgWZ[
<. u]ZqOJXxu
// 不带换行 ]Bm>-*@0N
? "Hello, world!" W(Uu@^
}h}<!s
// 或者 [F[K^xYTlg
bI y sl
// 带换行 ad_`x
?? 'Hello, world!' 3tmdi 3s
.> MCP "GZK6W
2Gs$?}"a
dna6QV>A
OCaml I
Nc^L
let main () = 7'-j%!#w
print_endline "Hello world!";; SgEBh
,o7hk{fR*
u?[ q=0.J7
Pascal o1/lZm{\~n
program Hello; D r9 ?2
begin l6u&5[C
writeln('Hello, world!'); *E~VKx1
end. i0s6aAhgJ
}elH75[64
lI/0:|l
Perl e62Dx#IY
#!/usr/local/bin/perl G3G6IP
print "Hello, world!\n"; e\b`n}nC
=q"eU=9
Cj*-[EL<
PHP h)v^q: ='
<?php Ft@Wyo`^
print("Hello, world!"); @wq#>bm
?> 'lS`s(
vSW
L$Y2
[ "xn5lE
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