“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。 CIMI?
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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》。 ewd
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以下是用不同语言写成的Hello World程序的几个例子: i#>t<g`l
Ada Eo2`Vr9g
with Ada.Text_Io; use Ada.Text_Io; {!D(3~MI
procedure Hello is
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begin _|US`,kfc
Put_Line ("Hello, world!"); Ik^^8@z
end Hello; +Kb 7N, "
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汇编语言 !b_(|~7Lc
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x86 CPU,DOS,TASM w[d8#U
MODEL SMALL w r"0+J7
IDEAL c45s
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STACK 100H r<fcZ)jt|
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DATASEG m6[}KkW
HW DB 'Hello, world!$' ,V,mz?d^9
ya1
aWs~
CODESEG *VhEl7
MOV AX, @data f~wON>$K
MOV DS, AX %B\x
%e;P
MOV DX, OFFSET HW 3as=EYm
MOV AH, 09H by'KJxl[
INT 21H beo(7,=&
MOV AX, 4C00H h_?`ESI~
INT 21H >I\B_q
END Q&.uL}R
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x86 CPU,GNU/Linux,NASM yn}Dj9(q
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). H;4QuB'^
;Enter this into "hello.asm" then type: ,B'=$PO%
;"nasm -f elf hello.asm" =tD*,2]
;"ld hello.o -o hello" nfF$h}<o+
;"./hello" avq$aq(3&
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section .data ;data section declaration 0#OyT'~V%
msg db 'Hello World!',0AH OiQf=Uz\
len equ $-msg ;string length :wS&3:h
=_ pSfKR;
section .text ;code section declaration AwNr}9`
global _start ;entry point (start of execution) "W"^0To
_start: mov edx,len ;string length >fWGiFmlk
mov ecx,msg ;string start 3!l>\#q6
mov ebx,1 ;file handle: stdout Qwpni^D8j
mov eax,4 ;sys_write uQ-GJI^t
int 80h ;kernel system call =(
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:W, S
mov ebx,0 ;return value w"?Q0bhV9y
mov eax,1 ;sys_exit 86)2\uan
int 80h ;kernel system call |:5O|m '
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x86 CPU,Windows,MASM32 IMwV9rF
.386 ~BuzI9~7P
.model flat,stdcall $h
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option casemap:none %CHw+wT&
;Include 文件定义 +]cf/_8+s
include windows.inc }
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include user32.inc 0\XWdTj{
includelib user32.lib eZOR{|z
include kernel32.inc 7*uN[g#p
includelib kernel32.lib %urvX$r4K
;数据段 \85%d0@3
.data 9k ~8n9
szCaption db 'A MessageBox!',0 'r 7[9[
szText db 'Hello,world!',0 :@i+yN cV
;代码段 ~'%d]s+q
.code ^g*Sy, A
start: ={%'tv`
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK LH(P<k&
invoke ExitProcess,NULL B`e/ /
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Ck
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end start Kj4BVs
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AWK Qw2`@P8W
BEGIN { print "Hello, world!" } Gw3+TvwU+Q
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BASIC GKIzU^f
传统版BASIC(例如GWBASIC): T;(,9>Qsu
76rv$z{g^
10 PRINT "Hello, world!" ru 6`Z+p
20 END [<@T%yq
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或在提示符输入: +8zACs{p
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?"Hello, world!":END 68,j~e3-i
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现代版BASIC(例如Quick BASIC): "}Om0rB}1
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Print "Hello, world!" S. `y%t.GP
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以下的语句在Quick BASIC中同样有效: :bct+J}l~
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? "Hello,world!" xcw:H&\w6
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BCPL g/.FJ-I*
GET "LIBHDR" M}o.= Iqa
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LET START () BE #a=]h}&1?
$( *,G<X^
WRITES ("Hello, world!*N") W,[ RB
$) HDKF>S_S
EM@|^47$
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Befunge r5s{t4 ;Ch
"!dlrow olleH">v LmJjO:W}^y
, c9[{P~y
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e=VSO!(rY
<~uzHg%Y
Brainfuck NxnRQS
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< tZ[9qms^_
+++++++++++++++.>.+++.------.--------.>+.>. d[l8qaD
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C |u%;"N'p)
#include <stdio.h> 1R@G7m
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int main(void) %TFsk
{ T%%EWa<a
printf("Hello, world!\n"); P
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return 0; RjVUm+<
} [xM&Jdf8
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C++ Q<6* UUQm
#include <iostream> +ZjDTTk
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int main() {H,O@
{ OSO MFt
std::cout << "Hello, world!" << std::endl; m&=Dy5
return 0; Rp2h[_>
} b)IQa,enH
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C++/CLI jX4$PfOhR
int main() ^!^M Gzu
{ f`ibP6%
System::Console::WriteLine("Hello, world!"); mxCneX
} 0@?m"|G
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C# (C Sharp) 8OOAPp$%|
class HelloWorldApp s2,6aW C
{ '~
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public static void Main() vWmt<E|e
{ K@n-#
System.Console.WriteLine("Hello, world!"); ugN%8N
} 02EX_tt),
} pSQX
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" TCJT390
COBOL h(kPf]0
IDENTIFICATION DIVISION. wclj9&k
PROGRAM-ID. HELLO-WORLD. jl}9R]Y_2
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ENVIRONMENT DIVISION. "\Dqtr w
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DATA DIVISION. a=ZVKb
=k d-rIBc
PROCEDURE DIVISION. pFd{Tdh
DISPLAY "Hello, world!". kJB:=iq/x$
STOP RUN. .7
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Common Lisp 38-kl,Vw
(format t "Hello world!~%") O D5qPovsd
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DOS批处理 9+*{3 t
@echo off Heqr1btK
echo "Hello, world!" gcwJ{&
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Eiffel <z60EvHg
class HELLO_WORLD 7>zUT0SS
? Lxc1
creation f8K0/z
make =@O&$&
feature %Qj$@.*:
make is uUp>N^mmVH
local Edc3YSg%;
io:BASIC_IO 7?g({]
do IN6L2/Q
!!io ]4c*Nh%8
io.put_string("%N Hello, world!") "MzBy)4Q
end -- make Q& d;UVp
end -- class HELLO_WORLD HqqMX`Rof
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Erlang 8@;R2]Q
-module(hello). ]7,0>
-export([hello_world/0]). 0;1O;JRw
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hello_world() -> io:fwrite("Hello, World!\n"). ,^1 #Uz8
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Forth ' p!&&.%
." Hello, world!" CR 8rJf2zL
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Fortran MsIaMW _
WRITE(*,10) V`/c#y||
10 FORMAT('Hello, World!') D)4#AI
STOP n|.eL8lX.<
END :Id8N~g
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HTML 7ko}X,aC
<HTML> oP7)
<HEAD> ae3 Gn}tf
<TITLE> Hello World! </TITLE> 0ZD)(ps|
</HEAD> =<(6yu_
<BODY> xzx~H>M
<p>Hello World!</p> 6e,IjocsB
</BODY> Ao\ OU}
</HTML> 2b\h@VJt
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" 5Pqvi
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H "kc%d'c(
0"\js:-$
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INTERCAL Ug#B( }/
PLEASE DO ,1 <- #13 ;\13x][
DO ,1 SUB #1 <- #238 T{3-H(-gA
DO ,1 SUB #2 <- #112 ] -C*d$z
DO ,1 SUB #3 <- #112 Ea" -n9
DO ,1 SUB #4 <- #0 1'&HmBfcb
DO ,1 SUB #5 <- #64 B&!>& Rbx
DO ,1 SUB #6 <- #238 #Wl9[W/4
DO ,1 SUB #7 <- #26 ~r})&`5
DO ,1 SUB #8 <- #248 y9i+EV
DO ,1 SUB #9 <- #168 Y!c7P,cZ+3
DO ,1 SUB #10 <- #24 `}
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DO ,1 SUB #11 <- #16 FFVh~em{
DO ,1 SUB #12 <- #158 Xa'b@*o&
DO ,1 SUB #13 <- #52 LChwHkRHJI
PLEASE READ OUT ,1 =`MQKh,
PLEASE GIVE UP r<dvo%I#|
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Java Ly`.~t(~l
public class Hello MnY}U",
{ w2!5TKZ`
public static void main(String[] args) <gvgr4@^yR
{ BG-nf1K(
System.out.println("Hello, world!"); !_>/ r
} }*P;kV
} XGnC8Be{4
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JSP ey>tUmt6?
<% >"]t4]GVf
out.print("Hello, world!"); cE,,9M@^
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"Q.C1#W}.
rc{F17~vX
MIXAL oB!-JX9
TERM EQU 19 the MIX console device number 68qCY
ORIG 1000 start address ,0,&
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START OUT MSG(TERM) output data at address MSG ?[5_/0L,=
HLT halt execution up?S (.*B
MSG ALF "MIXAL" FSZ :}Q
ALF " HELL" y>J6)F
=
ALF "O WOR" pug;1UZ
ALF "LD " ~fpk`&nhe
END START end of the program aHles5
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Nuva gyMy;}a
<..直接输出..> i~DLo3
Hello, world! Zqg
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<..或者..> _(@ezX.p
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<. n3hlo@gYW
// 不带换行 >hotkMX `3
? "Hello, world!" }"^d<dvuz
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// 或者 C !Lu`y
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// 带换行 nhq,Y0YH
?? 'Hello, world!' eGrxS;NY
.> pN;T t+}
6bpO#&T
!V0)eC50
OCaml y[f6J3/
let main () = wqQrby<
print_endline "Hello world!";; rY=dNK]d
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N?%FVF
Pascal kgF x
program Hello; _~b]/]|z#N
begin OimqP
writeln('Hello, world!'); Y]}>he1/5
end. M ~6k[ew
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0
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Perl MOP#to)k&
#!/usr/local/bin/perl Oufdi3h
print "Hello, world!\n"; G8hDR^ra
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PHP IqjH
<?php G]>P!]
print("Hello, world!"); 5AAPtZ\lH
?> <K~mg<ff$
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