“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。 xa<KF
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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》。 lBs-u h
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以下是用不同语言写成的Hello World程序的几个例子: YZSQOLN{
Ada Ldv,(ZV,<
with Ada.Text_Io; use Ada.Text_Io; o$+R
procedure Hello is -1v9
begin &ni#(
Put_Line ("Hello, world!"); 6DK).|@$r
end Hello; UntFkoO
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汇编语言 Qzo -Yw`=
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x86 CPU,DOS,TASM I}0? d
MODEL SMALL !k*B-@F
IDEAL _5~|z$GW
STACK 100H _X;,,VEV!
ZeU){CB
DATASEG wCR! bZ w
HW DB 'Hello, world!$' ecoI-@CAI
T#E$sZ
CODESEG YGLq~A
MOV AX, @data v~T)g"_|
MOV DS, AX i$@xb_
MOV DX, OFFSET HW D6&P9e_5
MOV AH, 09H jl(D;JnF
INT 21H E QU@';~8
MOV AX, 4C00H fDplYn#
INT 21H Qj_)^3`e
END x>TIx[x
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x86 CPU,GNU/Linux,NASM V6HZvuXV!
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ,Ww}xmq1H
;Enter this into "hello.asm" then type: "5
~{
;"nasm -f elf hello.asm" ]BbV\#
;"ld hello.o -o hello" `Ds=a`^b
;"./hello" mI4GBp
hZL!%sL7
section .data ;data section declaration &dmIv[LU
msg db 'Hello World!',0AH :.]EM*p?GV
len equ $-msg ;string length e@0|fB%2
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section .text ;code section declaration 3ej237~F,L
global _start ;entry point (start of execution) ]GY8f3~|{
_start: mov edx,len ;string length 8Nyz{T[
mov ecx,msg ;string start ('C)S)98C
mov ebx,1 ;file handle: stdout ecz-jZ!
`
mov eax,4 ;sys_write Y,Z$U| U
int 80h ;kernel system call [7gz?9VyLF
xW5 `.^5
mov ebx,0 ;return value Ao` e{
mov eax,1 ;sys_exit IE996
int 80h ;kernel system call Oy=0Hsh@x
%M'`K
wzwv>@}
x86 CPU,Windows,MASM32 a6./;OC
.386 8w:mL^6x
.model flat,stdcall __QnzEF
option casemap:none 6V1oZ-:}
;Include 文件定义 3))R91I
include windows.inc Ua
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include user32.inc ;7?oJH;
includelib user32.lib H,w8+vZ4\
include kernel32.inc wZ\93W-}
includelib kernel32.lib JkT!X
;数据段 85Yi2+8f4
.data H7&y79mB
szCaption db 'A MessageBox!',0 .*njgAq7
szText db 'Hello,world!',0 `Kf@<=
;代码段 ^"
g?m
.code &`n:AR`
start: z8}QXXa
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ojf6@p_
invoke ExitProcess,NULL !wpK
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> lV^:2I/
end start ejkUNCKQt
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AWK G`0{31us
BEGIN { print "Hello, world!" } PDA9.b<q0
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BASIC XfVdYmii
传统版BASIC(例如GWBASIC): UMd.=HC L
fcF| m5
10 PRINT "Hello, world!" C za}cF
20 END k`N*_/(|n
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或在提示符输入: Oi: Hs
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?"Hello, world!":END SWI\;:k
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现代版BASIC(例如Quick BASIC): 6 *S/frE
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Print "Hello, world!" GiuE\J9i
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以下的语句在Quick BASIC中同样有效: iz/CC V L
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? "Hello,world!" +,)k@OI
ll$mRC
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BCPL FO_}9 <s
GET "LIBHDR" z5iCQ4C<
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LET START () BE i7h^L)M
$( R-Lpgi<a"
WRITES ("Hello, world!*N") [3-u7Fx!
$) .Er+*j;&w
1/:vFX
6-"tQ,AZ
Befunge ;k#_/c
"!dlrow olleH">v RbxQTM_:M
, YzZj=]\`b
^_@ -th.(eAx
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|-\anby<
Brainfuck 2RNee@!JJP
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< p2b~k[
+++++++++++++++.>.+++.------.--------.>+.>. <#M1I!R
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a9NuYYr,h
C <BBzv-?D
#include <stdio.h> +0ukLc@
&glh >9:G
int main(void) Pz2Q]}(w
{ ~gZ1*8 s`
printf("Hello, world!\n"); [olSgq!3
return 0; CXoiA"P
} R#~l[S8u^
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GR*sk#{
C++ Hc\@{17
#include <iostream> [|*7"Q(
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int main() zJ8T.+qJ
{ dT 7fyn
std::cout << "Hello, world!" << std::endl; ~1*37 w~
return 0; |*zgX]-+;
} #M w70@6
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C++/CLI Fng
int main() -;"A\2_y
{ N@<-R<s^
System::Console::WriteLine("Hello, world!"); z0ufLxq
} Il@K8?H@
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C# (C Sharp) RZpjr !R
class HelloWorldApp xE--)=<$
{ KV;q}EyG
public static void Main() .0U[nt6
{ 6j{ynt
System.Console.WriteLine("Hello, world!"); 85|u;Fxf
} b}Im>n!
} &I'J4gk[
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FPK=Tr:b
COBOL VK*H1EH1
IDENTIFICATION DIVISION. rBL2A
PROGRAM-ID. HELLO-WORLD. kP('X/
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ENVIRONMENT DIVISION. .e3@fq
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DATA DIVISION. .,S`VNU
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PROCEDURE DIVISION. NF |[j=?
DISPLAY "Hello, world!". 9&^5!R8
STOP RUN. yCkc3s|DA;
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Common Lisp 4<1V
(format t "Hello world!~%") 1l^[%0
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DOS批处理 Z&H_+u3j
@echo off
}8"i~>>a
echo "Hello, world!" %UooZO
# 7dvT=
;IPk+,hpmi
Eiffel IR2Qc6+{
class HELLO_WORLD @0H0!9'
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creation ~qL/P 5*+
make GYJ j$'
feature &y73^"%
make is NhYUSk ~u
local X[w]aJnAr
io:BASIC_IO _RzoXn{1e
do Imzh`SI,
!!io a ge8I$*`@
io.put_string("%N Hello, world!") I=[0 9o
end -- make *&_A4)
end -- class HELLO_WORLD l&W:t9o
,:-^O#
}>,%El/
Erlang zU0JwZi
-module(hello). (C`nBiL<
-export([hello_world/0]). 0?I
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hello_world() -> io:fwrite("Hello, World!\n"). q:jv9eL.O
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TOP,]N/F
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Forth dR,a0+!
." Hello, world!" CR K!>3`[:I"
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#sv}%oV,F
Fortran l_2l/ff9
WRITE(*,10) L4u.cHJ}0
10 FORMAT('Hello, World!') -s0J8b
STOP /
)[\+Nc
END _q@lP|
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? )IH#kL
HTML ^Nav8dma
<HTML> R*ex!u60M
<HEAD> l.}gWN9-
<TITLE> Hello World! </TITLE> T
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</HEAD> ` -W4/7
<BODY> NFur+zwv
<p>Hello World!</p> V j)"?|V
</BODY> \0qFOjVj
</HTML> &
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INTERCAL > -fXn
PLEASE DO ,1 <- #13 `C6,**`R$k
DO ,1 SUB #1 <- #238 K_N`My
DO ,1 SUB #2 <- #112 9Y2(.~w6X
DO ,1 SUB #3 <- #112 3],(oQq^
DO ,1 SUB #4 <- #0 FY+@fy
DO ,1 SUB #5 <- #64 ^:O*Sx.CA
DO ,1 SUB #6 <- #238 K TE*Du
DO ,1 SUB #7 <- #26 DuQ:82 3b
DO ,1 SUB #8 <- #248 X0$?$ta
DO ,1 SUB #9 <- #168 @ <'a0)n>
DO ,1 SUB #10 <- #24 zRau/1Y0
DO ,1 SUB #11 <- #16 +$^[r
DO ,1 SUB #12 <- #158 7d_"4;K)
DO ,1 SUB #13 <- #52 k5)IBO
PLEASE READ OUT ,1 3VQmo\li
PLEASE GIVE UP oye/tEMG
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Java yW"}%)
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public class Hello _B}QS"A
{ oJ=u
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public static void main(String[] args) diw5h};W
{ GL&rT&
System.out.println("Hello, world!"); p1ER<_fp
} o3OJI_
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} "KY]2v.
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JSP SQw"mO
<% K~8!Gh{h]
out.print("Hello, world!"); .d4&s7n0
%> <2+FE/3L
`
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z`8>$9
MIXAL V F"c}
TERM EQU 19 the MIX console device number #Pq6q.UB
ORIG 1000 start address t 9.iWIr
START OUT MSG(TERM) output data at address MSG @oMl^UYM=
HLT halt execution mj2sbRiSR=
MSG ALF "MIXAL"
ck`$ `
ALF " HELL" q1%xk=8
ALF "O WOR" Sa6YqOel@
ALF "LD " X=JAyxY
END START end of the program Fi+,omB&
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Nuva g aXF3v*j
<..直接输出..> p*Hf<)}
Hello, world! C2J@] &