“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。 G\H |\i
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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》。 W0N*c*k
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以下是用不同语言写成的Hello World程序的几个例子: d/` d:g
Ada T2MXwd&l
with Ada.Text_Io; use Ada.Text_Io; TM`6:5ONv
procedure Hello is w?A6S-z
begin rPoq~p[Y
Put_Line ("Hello, world!"); tD3v`Ke
end Hello; sFonc
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Y-:dPc{
汇编语言 e4Jx%v?_P
>I*uo.OF
x86 CPU,DOS,TASM Gbc2\A\
MODEL SMALL 0D^c4[Y'l
IDEAL JCZ 5q9b
STACK 100H pq<2:F:Kl
C4t@;U=x
DATASEG H mVpxD+
HW DB 'Hello, world!$' 5?C) v}w+
P#ot$@1v
CODESEG _[ufH*
MOV AX, @data >$N ?\\#
MOV DS, AX sGFC?1r?\
MOV DX, OFFSET HW OA8iTn
MOV AH, 09H aX(Y
`g)|
INT 21H T Ue=Yj
MOV AX, 4C00H `>skcvkm
INT 21H Xe:e./@
END hGlRf_{
~mu)Cw
h<IPV'1
x86 CPU,GNU/Linux,NASM )+12r6W
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). jV|/ C
;Enter this into "hello.asm" then type: Nd61ns(N
;"nasm -f elf hello.asm" 5vqh09-FB
;"ld hello.o -o hello" >Gi*BB
;"./hello" z)]Br1
Id40yER
section .data ;data section declaration {,zn#hU.R
msg db 'Hello World!',0AH v[=TPfX0
len equ $-msg ;string length ^WmP,Xf#
SOo}}a0
section .text ;code section declaration YV/JZc f
global _start ;entry point (start of execution) RI-)Qx&!f
_start: mov edx,len ;string length 2f7]=snCG
mov ecx,msg ;string start zUd{9B$
mov ebx,1 ;file handle: stdout zFeo8S
mov eax,4 ;sys_write '7/c7m/$X<
int 80h ;kernel system call A&($X)t
/&g~*AL
mov ebx,0 ;return value 137:T:
mov eax,1 ;sys_exit 7q|51rZz
int 80h ;kernel system call '"o&BmF
g0-J8&?X
wA7^
x86 CPU,Windows,MASM32 'AJlkLqm#>
.386 %tJ@)
.model flat,stdcall <B3$ODGJp
option casemap:none ?9m@ S#@
;Include 文件定义 Vrx3%_NkQ
include windows.inc 2g:V_%
include user32.inc )6
[d'2
includelib user32.lib >.f'_2#Z&
include kernel32.inc n6s[q-td
includelib kernel32.lib rk .tLk
;数据段 VLs%;|`5D
.data ;$$.L
bb8
szCaption db 'A MessageBox!',0 9a lMC
szText db 'Hello,world!',0 ;Zow C#j
;代码段 &WAJ;7f
.code w@"l0gm+u[
start: 5t-dvYgU
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK mnS F=l;;
invoke ExitProcess,NULL sDzlNMr?P+
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> BP`'1Ns
end start Fy-N U
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AWK }E]&,[4&M
BEGIN { print "Hello, world!" } j9]H~:g$d
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|>L|7>J{<d
BASIC QvjOOc@k~n
传统版BASIC(例如GWBASIC): y(uE
EoD[,:*
10 PRINT "Hello, world!" Ec;{N
20 END ZVX!=3VT
&$+nuUA
或在提示符输入: dE0p>4F
WyDL ah^/
?"Hello, world!":END n%1I}?$fO
vgvJ6$#
现代版BASIC(例如Quick BASIC): rLzN#Zoi
xD3Y-d9
Print "Hello, world!" `oUuAL
mhZ60 RW
以下的语句在Quick BASIC中同样有效: {Mx3G*hr
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? "Hello,world!" 60r4%>d
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zOzobd
BCPL ^ H )nQ
GET "LIBHDR" p!]$!qHO(
HHU0Nku@ho
LET START () BE Q1?09
$( sGdlS&08(
WRITES ("Hello, world!*N") KaGG4?=V
$) \6z_;
[[sfuJD
6I`Lszs
Befunge EA+}Rf6}
"!dlrow olleH">v slWO\AYiO
, ~KF>Jow?Y
^_@ BQTibd
;Q&|-`NK
;)nV
Brainfuck ~xSAR;8
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< [TFd|ywn
+++++++++++++++.>.+++.------.--------.>+.>. 7(oX1hN
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C hwR_<'!
#include <stdio.h> p2Fff4nQ
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int main(void) #ovmX
{ 5o&noRIIr
printf("Hello, world!\n"); gN("{j1Q
return 0; 4$^\s5 K
} ]gHi5]\NC
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h
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C++ ,|r%tNh<8$
#include <iostream> D#I^;Xg0h
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int main() a\BV%'Zqg
{ Sb;=YW
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std::cout << "Hello, world!" << std::endl; 8r46Wr7Q
return 0; |)pRkn8x
} GV"Hk E;
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C++/CLI l#;DO9
int main() BD(Y=g
{ >.)m|,
System::Console::WriteLine("Hello, world!"); l9eCsVQ~V
} dvl'Sq<
fd<a%nSD
X>W2aDuEZ
C# (C Sharp) h/a|-V}m&
class HelloWorldApp /P>t3E2c
{ ZgP~VB0)$
public static void Main() ?mCino
{ X?8 EPCk
System.Console.WriteLine("Hello, world!"); qij<XNZU"&
} zcn/LF
} UHh7x%$n
$yA>j (k4
x&kM /z?/
COBOL :p@.aD5
IDENTIFICATION DIVISION. &Oih#I
PROGRAM-ID. HELLO-WORLD. VoTnm
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ENVIRONMENT DIVISION. Hido[
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DATA DIVISION. ZVin+ z
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PROCEDURE DIVISION. 2`?58&
DISPLAY "Hello, world!". ip`oL_c
STOP RUN. jrl'?`O
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Common Lisp &O:IRR7p
(format t "Hello world!~%") m/T3Um
#BZ2%\
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DOS批处理 B,_/'DneQK
@echo off !)1gGXRY
echo "Hello, world!" /YLHg5n8+
2.>WR~\
Sz_{ #-
Eiffel y_7lSo8<
class HELLO_WORLD 26&$vgO~:
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H""Bd
creation UCz\SZ{za
make s)L\D$;+O
feature )#H&lH
make is L^{1dVGWNa
local e@ mjh,
io:BASIC_IO *:+&SxL
do ~fV\
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!!io !*tV[0i2
io.put_string("%N Hello, world!") '<JNS8h
end -- make {#_CzI.0f
end -- class HELLO_WORLD ye-EJDZN
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p";5J+?(
Erlang 'BiR ,M$mY
-module(hello). 4*D'zJsJ
-export([hello_world/0]). $\w<.)"#
<Pm!#)-g9
hello_world() -> io:fwrite("Hello, World!\n"). hn-!W;j
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3tjF4C>h|
Forth cUH.^_a
." Hello, world!" CR w1&\heSQ
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Fortran sMn)[k
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WRITE(*,10) GI[TD?s
10 FORMAT('Hello, World!') O?=YY@j
STOP D"z3SLFW{
END "?X,);5S
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HTML t4P`#,:8
<HTML> e2><Y<
<HEAD> GGQ%/i]:
<TITLE> Hello World! </TITLE> %6%~`((4
</HEAD> Sf>#Zqj/
<BODY> $0mR_pA\fW
<p>Hello World!</p> cEK<CV
</BODY> `B A'a" $
</HTML> #B!HPlrv
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rsaN<6#_^Q
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H 1o8C4?T&
Ov-Y.+L:
!S3^{l-
INTERCAL ixY[ HDPq
PLEASE DO ,1 <- #13 f'oO/0lx
DO ,1 SUB #1 <- #238 sOyL
DO ,1 SUB #2 <- #112 v:1DNR4
DO ,1 SUB #3 <- #112 3-PqUJT$
DO ,1 SUB #4 <- #0 CiNOGSlDj
DO ,1 SUB #5 <- #64 #>ob1b|
DO ,1 SUB #6 <- #238 81}JX
DO ,1 SUB #7 <- #26 (B^rW,V[R
DO ,1 SUB #8 <- #248 M/mm2?4
DO ,1 SUB #9 <- #168 ;H4 s[#K
DO ,1 SUB #10 <- #24 !\}X?Gf
DO ,1 SUB #11 <- #16 B" 0a5-pkr
DO ,1 SUB #12 <- #158 Ht"?ajW{
DO ,1 SUB #13 <- #52 z@21Z`,
PLEASE READ OUT ,1 c<a)Yqf"]
PLEASE GIVE UP Tpd|+60g
F+SqJSa
Z_h-5VU-
Java j2RdBoCt
public class Hello }ip3d m
{ 0g`$Dap
public static void main(String[] args) p>l:^-N;f
{ :OFs"bC
System.out.println("Hello, world!"); PWBcK_4i%
} mz|p=[lR|
} #I"s{*
Q@
Ze+IhK`
q"e]\Tb=we
JSP SaIY-PC
<% c[>xM3=e^q
out.print("Hello, world!"); l86gs6>
%> 6E#znRi6IE
Lb,wn{
.|e8v _2J
MIXAL ]Zz.n5c
TERM EQU 19 the MIX console device number o1?S*
ORIG 1000 start address mt]^d;E
START OUT MSG(TERM) output data at address MSG b+CJRB1
HLT halt execution ka_(8
MSG ALF "MIXAL" +# 3e<+!F
ALF " HELL" _CMNmmp`e
ALF "O WOR" [jv+Of
IZ
ALF "LD " kMx)G]
END START end of the program ek"Uq RY
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tv_&PIu]L
Nuva bXi!_'z$
<..直接输出..> P~M[i9 V
Hello, world!
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