“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。 BO[Q"g$Kon
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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》。 aC3\Hs
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以下是用不同语言写成的Hello World程序的几个例子: ?O4Dhu
Ada DJ}xD&G
with Ada.Text_Io; use Ada.Text_Io; xx;'WL,g
procedure Hello is 6z%3l7#7Yi
begin ;~~Oc
Put_Line ("Hello, world!"); a,cDj
end Hello; cdU2ph_
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汇编语言 rA*,)I_v@
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x86 CPU,DOS,TASM 9[T#uh!DC
MODEL SMALL }J`{g/
IDEAL 2l5@gDk5
STACK 100H (~Zg\(5#
EUuMSDp
DATASEG 2SG|]=
HW DB 'Hello, world!$' ^0{S!fs
=q
xcM+OX1
CODESEG e7#=F6
MOV AX, @data qx0o,oZN!
MOV DS, AX =5Q;quKu^5
MOV DX, OFFSET HW (!X:[Ah*$
MOV AH, 09H 8" 8{Nf-"
INT 21H xDADJ>u2K
MOV AX, 4C00H m$LZ3=v%8
INT 21H W\~ZmA.
END 73}k[e7e
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x86 CPU,GNU/Linux,NASM nj7Ri=lyS
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Z/-%Eb]L1
;Enter this into "hello.asm" then type: '2[ _U&e
;"nasm -f elf hello.asm" ^"buF\3L
;"ld hello.o -o hello" Bl`e+&b
;"./hello" '[-H].-!
#i2q}/w5`C
section .data ;data section declaration '3hvR4P
msg db 'Hello World!',0AH ^ *
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len equ $-msg ;string length 0l 3RwWj
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section .text ;code section declaration ;prp6(c
global _start ;entry point (start of execution) -IX;r1UD
_start: mov edx,len ;string length MeplM$9
mov ecx,msg ;string start {{EQM
+
mov ebx,1 ;file handle: stdout RuRJ jcnY
mov eax,4 ;sys_write gu:..'V
int 80h ;kernel system call ;'o>6I7Ph
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mov ebx,0 ;return value @XIwp2A{+
mov eax,1 ;sys_exit sL/Lw
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int 80h ;kernel system call yp*kMC,3
?,%N?
&R^mpV5
x86 CPU,Windows,MASM32 _R-#I
.386 HKxrBQr78
.model flat,stdcall LoCxoAg
option casemap:none "R9kF-
;Include 文件定义 H`io|~Q
include windows.inc in+`zfUJ9
include user32.inc [e^i".
includelib user32.lib I"
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include kernel32.inc A,=l9hE'
includelib kernel32.lib wK\SeX
;数据段 @K+u+}
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.data >XZq=q]E!
szCaption db 'A MessageBox!',0 5N|77AAxK
szText db 'Hello,world!',0 a9qZI
;代码段 g)p[A 4
.code %##9.Xm6l
start: cxv)LOl-
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Hd2_Cg FB
invoke ExitProcess,NULL s~63JDy"E
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 5rcno.~QO
end start 92tb`'
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BEGIN { print "Hello, world!" } *l9Y]hinq
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BASIC ]D]K_`!K
传统版BASIC(例如GWBASIC): eb8_guZ
tllg$CQ5
10 PRINT "Hello, world!" qzmZ/z96
20 END 0WPxzmY
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或在提示符输入: 8'quQCx*=
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?"Hello, world!":END Uis
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现代版BASIC(例如Quick BASIC): Ebk@x=E
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Print "Hello, world!" V('b|gsEo
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以下的语句在Quick BASIC中同样有效: p,0 \NUC
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? "Hello,world!" bQ4 }no0
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BCPL So 5{E4[
GET "LIBHDR" c~C W-%wN
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LET START () BE a3)#tt=rA
$( j>:T)zhyY
WRITES ("Hello, world!*N") V , "'k<y
$) GkO6r'MVE
L7b{H2 2
BA5= D>T-
Befunge y7Ub~qU
"!dlrow olleH">v Xg)yz~Ug
, }B.C#Y$@
^_@ +Q9HsfX/
2U+&F'&Q
0jS/U|0
Brainfuck 3_>1j
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 7/yd@#$X
+++++++++++++++.>.+++.------.--------.>+.>. lu}[XN
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C sg y
#include <stdio.h> kO#`m]
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int main(void) K_xOY
*
{ h^c'L=dR
printf("Hello, world!\n"); (l,o UBRr
return 0; sDC RL%0QK
} 5C&f-* Bh
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C++ 5 6R,+sN
#include <iostream> EpfmH `
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int main() M}<=~/k`j
{ +u2Co_FJ&
std::cout << "Hello, world!" << std::endl; D^~gq`/)
return 0; {MtB!x
} O
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C++/CLI [ bW=>M
int main() 3{z|301<m
{ w~&]gyf
System::Console::WriteLine("Hello, world!"); K6U>Qums
} {Vm36/a
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C# (C Sharp) D^{:UbN
class HelloWorldApp (
A) wcB
{ *J=ol
public static void Main() cn0Fz"d
{ Y<+4>Eh
System.Console.WriteLine("Hello, world!"); EHHxCq?
} H^g<`XEgw
} C] w< &o
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COBOL (n/1:'
IDENTIFICATION DIVISION. OKVYpf
PROGRAM-ID. HELLO-WORLD. <&2,G5XA
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ENVIRONMENT DIVISION. gT
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lo: ~~l
DATA DIVISION. c5R{Sl
qrc/Q;$
PROCEDURE DIVISION. VZoOdR:d
DISPLAY "Hello, world!". }v,THj
STOP RUN. C":\L>Ax
DO1{r/Ib.{
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Common Lisp p#d UL9
(format t "Hello world!~%") Wwha?W>
I={{VQ
F21[r!3
DOS批处理 Z L</
@echo off r<v%Zp
echo "Hello, world!" O:)IRB3
~S6 {VK.
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Eiffel ][nUPl
class HELLO_WORLD @UX@puK`/
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creation @W8}N|jek
make DZRxp,
feature a`*WpP \+
make is c5e\ckqm^
local S$52KOo
io:BASIC_IO MF}Lv1/[-J
do ?8@*q6~8
!!io C4tl4df9
io.put_string("%N Hello, world!") dA/o4co
end -- make |vz;bJG
end -- class HELLO_WORLD =7fh1XnW
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Erlang %}XMhWn{
-module(hello). }dJ ~Iy
-export([hello_world/0]). sVd_O[
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hello_world() -> io:fwrite("Hello, World!\n"). 5R `6zhf
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p0y?GNQ
Forth m1i+{((
." Hello, world!" CR TSSt@xQ+
R"gm]SQ/
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(M(w':
Fortran X-#mv|3
WRITE(*,10) lO> 7`2x=F
10 FORMAT('Hello, World!') HF+fk*_Q
STOP MIF[u:&
END Az9J{)
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HTML b^DV9mO4J
<HTML> 8'"/gC{
<HEAD> }#>d2 =T$
<TITLE> Hello World! </TITLE> n "KJB
</HEAD> -#;VFSz,9*
<BODY> FR^wDm$
<p>Hello World!</p> h_G|.7!
</BODY> S\g7wXH
</HTML> */dh_P<Yj
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INTERCAL 1vK(^u[
PLEASE DO ,1 <- #13 [pgkY!R?)
DO ,1 SUB #1 <- #238 OXX(OCG>
DO ,1 SUB #2 <- #112 7TPLVa=hO
DO ,1 SUB #3 <- #112 GdeR#%z
DO ,1 SUB #4 <- #0 4*XP;`
DO ,1 SUB #5 <- #64 A|_%'8
DO ,1 SUB #6 <- #238 ZX6=D>)u
DO ,1 SUB #7 <- #26 _AHB|P I
DO ,1 SUB #8 <- #248 lEbR) B,
DO ,1 SUB #9 <- #168 il cy/
DO ,1 SUB #10 <- #24 1qKxg
DO ,1 SUB #11 <- #16 40d9/$uzh
DO ,1 SUB #12 <- #158 Doc'7P
DO ,1 SUB #13 <- #52 G%8)6m'3
PLEASE READ OUT ,1 5`'au61/2
PLEASE GIVE UP T{{AZV"pB
`)!2E6 =
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Java 2j/1@Z1j=
public class Hello j X!ftm2
{ 7U
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public static void main(String[] args) \v
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{ 0R 5^p
System.out.println("Hello, world!"); 2td|8vDA
} -kri3?Y,
} l)PFzIz=V
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CE7pg&dJ)i
JSP e9hVX[uq
<% `MYK XBM
out.print("Hello, world!"); `Y({#U
%> 9 c5G6n0
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KYmWfM3^
MIXAL aU]O$Pg{
TERM EQU 19 the MIX console device number p9 ,\ {Is
ORIG 1000 start address bb0McEQy
START OUT MSG(TERM) output data at address MSG $s(4?^GP
HLT halt execution qTa]th;
MSG ALF "MIXAL" lp0T\
%
ALF " HELL" ))69a
ALF "O WOR" ])ALAAIc-
ALF "LD " GE8D3V;*V
END START end of the program {L-aXe{
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