“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。 QHQj/)J8
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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》。 "=A|K~b
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以下是用不同语言写成的Hello World程序的几个例子: 2z-$zB<vyw
Ada ]p$zvMf}
with Ada.Text_Io; use Ada.Text_Io; z~.9@[LG]
procedure Hello is 5<N~3
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begin +k
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Put_Line ("Hello, world!"); l10-XU02
end Hello; *g$agyOfh
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BE%Z\E[[m
汇编语言 '49L(>.
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x86 CPU,DOS,TASM 46dc.Yi
MODEL SMALL dzxI QlP
IDEAL r{V.jZ%p'Z
STACK 100H "/y|VTV"
*8206[y
DATASEG KW>VOW<.
HW DB 'Hello, world!$' "%kGRHq
6S_y%8Fv&[
CODESEG 0UD"^zgY
MOV AX, @data 1"$R 3@s;
MOV DS, AX )KE_t^$
MOV DX, OFFSET HW M c@GH
MOV AH, 09H )l{A{f6O
INT 21H bs:QG1*.
MOV AX, 4C00H 2[BA(B
INT 21H uRGB/ju^E
END ,TJ/3_ lH
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x86 CPU,GNU/Linux,NASM fKYKW?g;)Z
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ni0LQuBp
;Enter this into "hello.asm" then type: Y^5"qd|`
;"nasm -f elf hello.asm" x-4J/tm
;"ld hello.o -o hello" LT(?#)D
;"./hello" {jhcZ"#>\
&oc_a1R
section .data ;data section declaration 5U;nhDmM
msg db 'Hello World!',0AH 5m3'Gt4
len equ $-msg ;string length gA"<MI'y
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VP
section .text ;code section declaration zP|*(*
global _start ;entry point (start of execution) lrn+d$!@
_start: mov edx,len ;string length Zx9.p Fc"
mov ecx,msg ;string start r8+*|$K
mov ebx,1 ;file handle: stdout )(.%QSA\C
mov eax,4 ;sys_write X}?ESjZJ
int 80h ;kernel system call :o<N!*pT
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mov ebx,0 ;return value !?n50
mov eax,1 ;sys_exit 7 BK46x
int 80h ;kernel system call 776 nWw)
!*8#jy
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x86 CPU,Windows,MASM32 L77EbP`P
.386 FSVS4mtiX\
.model flat,stdcall ^
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option casemap:none aulaX/'-_
;Include 文件定义 [[&)cbv
include windows.inc WRY~fM
include user32.inc o6/Rx#A
includelib user32.lib .&L^J&V
include kernel32.inc ^^'[%ok
includelib kernel32.lib 9Yd-m
;数据段 UXQb={
.data }`4K)(>4nG
szCaption db 'A MessageBox!',0 SCI1bMf
szText db 'Hello,world!',0 !rz)bd3$
;代码段 n)Hk8)^8
.code RAdvIIQp:
start: T[m ~6
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Q{8qm<0g
invoke ExitProcess,NULL SUo^c1)G
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +=Yk-nJ
end start GtG&yeB
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AWK yX3PUO9
BEGIN { print "Hello, world!" } |
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IF& PGo
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BASIC /AoVl'R
传统版BASIC(例如GWBASIC): |z T%$
*WD;C0?z
10 PRINT "Hello, world!" N: A3kp
20 END 5nY9Ls(e
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或在提示符输入: exsQmbj* %
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?"Hello, world!":END kz$(V(k<
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现代版BASIC(例如Quick BASIC): 'G52<sF
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Print "Hello, world!" S ]vW&r3`
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以下的语句在Quick BASIC中同样有效: FBYll[8
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? "Hello,world!" P_v0))n{
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BCPL C+T&O
GET "LIBHDR" qjJ{+Rz2
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LET START () BE `D4oAx d9
$( `!] R!T@C
WRITES ("Hello, world!*N") 4n#YDZ
$) >7"$}5d
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E`Q;DlXv>
Befunge 7&=-a|k~
"!dlrow olleH">v p| Vmdnb
, ;HR 6X
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fFjL pl
Brainfuck U0!^m1U:
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 0`V3s]%iu
+++++++++++++++.>.+++.------.--------.>+.>. .MzOLv
mu 2
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C =DGn,i9
#include <stdio.h> hEVjeC
bcUC4g\9N
int main(void) t1G1(F#&%
{ "w(N62z/
printf("Hello, world!\n"); 83\o(
return 0; B>{|'z?%>
} FLVbkW-G.
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C++ lv=yz\
#include <iostream> e 4 p*51ra
q-A`/9
int main() fEx+gQW_
{ hN Z4v/
std::cout << "Hello, world!" << std::endl; vsu@PuqH
return 0; x%_qJ]o
} P'-JbPXU
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C++/CLI W`w5jk'0^=
int main() A4~D#V
{ _!CK
System::Console::WriteLine("Hello, world!"); (~q#\
} Pd)K^;em
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C# (C Sharp) A2}Z
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class HelloWorldApp |h#DL$
{ %bCcsdK
public static void Main() %KbBH:z05
{ t-.2+6"\
System.Console.WriteLine("Hello, world!"); dE 3i=
} I;`Ko_i
} "bHtf_
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COBOL &&]"Y!r -
IDENTIFICATION DIVISION. =-OCM*5~S
PROGRAM-ID. HELLO-WORLD. t}5'(9
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ENVIRONMENT DIVISION.
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DATA DIVISION. >P<k[vF
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PROCEDURE DIVISION. Sf+(1_^`t
DISPLAY "Hello, world!". zF[3%qZE:T
STOP RUN. 4]Un=?)I
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Common Lisp g`%ED0aR
(format t "Hello world!~%") QVnO
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DOS批处理 [_g#x(=
@echo off 1TK #eU
echo "Hello, world!" btUUZ"q<
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E[SV*1)
Eiffel OvyB<r
class HELLO_WORLD GCf._8;%
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creation *b$z6.
make 9s;!iDFn
feature xHM&csL
make is M3ecIVm8(
local ir?Uw:/f
io:BASIC_IO bqZ?uvc3
do O4 +SD
!!io yDCooX0
io.put_string("%N Hello, world!") ROJ'-Vde9
end -- make '<RB
end -- class HELLO_WORLD /7UovKKbz
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Erlang ch)Ps2i
-module(hello). ~n8*@9[
-export([hello_world/0]). *oX
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hello_world() -> io:fwrite("Hello, World!\n"). NE;(..
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HdY3DdC%q
Forth !SO$k%b}!
." Hello, world!" CR j &0fC!k
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T;4gcJPn"M
Fortran Sob $j
WRITE(*,10) = h<? /Krs
10 FORMAT('Hello, World!') Zgy2Pot
STOP .qb_/#Bas
END e~>p.l
| `)V^e_
%/6e"o
HTML _ RT"1"r
<HTML> JucxhjV#,
<HEAD> !q=Q~ea
<TITLE> Hello World! </TITLE> P$(iB.&
</HEAD> [c
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<BODY> f)AW !/
<p>Hello World!</p> }]39
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</BODY> v8'`gY
</HTML> y3@x*_K8
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H p~d)2TC4#
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vS J<
INTERCAL Z68Wf5@to&
PLEASE DO ,1 <- #13 9
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DO ,1 SUB #1 <- #238 :,}:c%-^"
DO ,1 SUB #2 <- #112 nuQLq^e
DO ,1 SUB #3 <- #112 _#^A:a^e8
DO ,1 SUB #4 <- #0
'QekQ];
DO ,1 SUB #5 <- #64 FSYjp{z5
DO ,1 SUB #6 <- #238 @]ptY*
DO ,1 SUB #7 <- #26 %<ptkZK#
DO ,1 SUB #8 <- #248 ^7s6J{<
DO ,1 SUB #9 <- #168 LO$#DHPt
DO ,1 SUB #10 <- #24 Q:fUM[
DO ,1 SUB #11 <- #16 YP\4XI
DO ,1 SUB #12 <- #158 Ng_rb KXC#
DO ,1 SUB #13 <- #52 q/w6sQx$
PLEASE READ OUT ,1 T`w};]z^d2
PLEASE GIVE UP *09\\
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32-3C6f@oZ
Java bKt3x+x(
public class Hello vVAZSR#
{ xeP;"J}
public static void main(String[] args) u>Axq3F
{ -B3wRAEt
System.out.println("Hello, world!"); 9i2vWSga
} C_^R_
} 7AtXG^lK
#Zavdkw=d
/4-eoTxy
JSP c@o/Cv
<% /P8eI3R
out.print("Hello, world!"); i:Z.;z$1
%> QhE("}1
rD(ep~^M
y/sWy1P7
MIXAL Y^*$PED?
TERM EQU 19 the MIX console device number ?D
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ORIG 1000 start address pqQdr-aR=
START OUT MSG(TERM) output data at address MSG <>*''^
HLT halt execution l&^[cR
MSG ALF "MIXAL" _7j/[
ALF " HELL" 4Utx
9^
ALF "O WOR" _qzo):G.s
ALF "LD " 4Tzu"y
END START end of the program ry'^1~,
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Nuva 3d)+44G_)
<..直接输出..> {R{%Z
Hello, world! : .w'gU_
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<..或者..> 4;c_ %=cU
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