“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。 i DV.L
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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》。 kAbRXID
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以下是用不同语言写成的Hello World程序的几个例子: |:SBkM,
Ada 1;<J] S$$
with Ada.Text_Io; use Ada.Text_Io; T8 k@DS
procedure Hello is 2]n"7Z8(v8
begin xmxfXW
Put_Line ("Hello, world!"); @.f@N;z
end Hello; A0sydUc
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汇编语言 M7&u_Cn?
E~5r8gM,0
x86 CPU,DOS,TASM .L[WvAo
MODEL SMALL F
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IDEAL L-\-wXg%
STACK 100H *R.Q!Lv+
{dV#"+
DATASEG MhN)ZhsC
HW DB 'Hello, world!$' rK W<kQT
AAjsb<P
CODESEG 6'UtB !gr
MOV AX, @data l/,O9ur-
MOV DS, AX %"~\Pu*>
MOV DX, OFFSET HW N!>Gg|@~
MOV AH, 09H F23/|q{{
INT 21H ooY2"\o
MOV AX, 4C00H Tx%6whd/'
INT 21H &K5wCNX1
END >;}np
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hc}dS$=C
DQM\Y{y|3
x86 CPU,GNU/Linux,NASM d:C-
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). _IJPZ'Hr
;Enter this into "hello.asm" then type: Q6Z%T.1
;"nasm -f elf hello.asm" w4U]lg<}E
;"ld hello.o -o hello" 7Wb:^.d
g
;"./hello" ,Ju f
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section .data ;data section declaration K2,oP )0.Y
msg db 'Hello World!',0AH r+fR^hv
len equ $-msg ;string length =D.M}xqo
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section .text ;code section declaration #W,BUN}
global _start ;entry point (start of execution) _sIhQ8$:
_start: mov edx,len ;string length B`)o?GcVN
mov ecx,msg ;string start *[jG^w0z8~
mov ebx,1 ;file handle: stdout ]Ln2|$R
mov eax,4 ;sys_write
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int 80h ;kernel system call ^OKCvdS
Szrr`.']
mov ebx,0 ;return value DytH} U"
mov eax,1 ;sys_exit ~TCz1UWV
int 80h ;kernel system call U2z1HIs
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rmmN2+H
x86 CPU,Windows,MASM32 zRPXmu{t
.386 vwDnz/-
.model flat,stdcall k`Nc<nN8
option casemap:none l`8S1~j
;Include 文件定义 l-4T Tg
include windows.inc PVvNu5k
include user32.inc =8S*t5
includelib user32.lib
=,&PD(.
include kernel32.inc +h^>?U,
includelib kernel32.lib &gxRw l
;数据段 h')@NnFP1
.data @Ong+^m|PC
szCaption db 'A MessageBox!',0 5qtZ`1Hq
szText db 'Hello,world!',0 Q{6Bhx *>
;代码段 u5^fiw]C
.code [_6_A O(Z
start: Ijq1ns_tx8
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK mw%do&e
invoke ExitProcess,NULL e`ti*1]q
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 4]O{Nko)
end start W(ITs}O
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-o*IJQ_
AWK V.5gxr3QqW
BEGIN { print "Hello, world!" } d{2+>
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BASIC 8B;wn<O
传统版BASIC(例如GWBASIC): H%NIdgo}
=jIB5".
10 PRINT "Hello, world!" w1B!z
20 END [YG\a5QK
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或在提示符输入: ]2\|<.
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?"Hello, world!":END j#d=V@=a
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现代版BASIC(例如Quick BASIC): tZmo= 3+:
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Print "Hello, world!" x>vC;E${"
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以下的语句在Quick BASIC中同样有效: e9/:q"*)/
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? "Hello,world!" DdDO.@-Z
ve[` 0
eAN]*:]g
BCPL s^+h>
GET "LIBHDR" |k$^RU<OF
FWI<_KZO
LET START () BE !Kr|04Qp#x
$( <6g{vNA
WRITES ("Hello, world!*N") \}Fx''
$) U 2am1}
@qk$
6X
xo2PxUO
Befunge WrH7tz
"!dlrow olleH">v 4b]/2H
, \U $'3M
^_@ [:<CgU9C
KM$Lu2
m UY+v>F
Brainfuck Qa@b-v'by
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< |kJ'FZZd
+++++++++++++++.>.+++.------.--------.>+.>. 3Ob"R%Yo
vI3L <[W
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C <uZ
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#include <stdio.h> vw VeHjR
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int main(void) .%;`:dtj
{ -;1'{v
printf("Hello, world!\n"); pEgQ)
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return 0; 7(cRm$)L
} 1!_$HA
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C++ _/Ky;p.
#include <iostream> Xkcy~e
uFQ;}k;}
int main() vYQ0e:P
{ 4FURm@C6
std::cout << "Hello, world!" << std::endl; Nn<TPT[,
return 0; wdg,dk9e$
} =K'X:UM
\d$fi*{
.l?sYe64S
C++/CLI 2"+8NfFl
int main() yh0zW
$
{ *R1m=
System::Console::WriteLine("Hello, world!"); 91%QO?hz
} BSt^QH-'
KZoIjK]
~I[Z2&I
C# (C Sharp) "TW%-67
class HelloWorldApp KMC]<
{ rTTde^^_
public static void Main() Q@]~O-
{ _8x:%$
System.Console.WriteLine("Hello, world!"); Xg+Eeg#
}
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} | 4/'~cYV
!9A6DWA E$
~D# -i >Z
COBOL 2;h4$^`dt
IDENTIFICATION DIVISION. {*utke]}*
PROGRAM-ID. HELLO-WORLD. n
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BUcPMF%\y:
ENVIRONMENT DIVISION. vbEAd)*S
)!SA]>-
DATA DIVISION. 'fpm] *ig
'5xIisP
PROCEDURE DIVISION. 32h}+fd
DISPLAY "Hello, world!". 1;_tu
STOP RUN. %N5gQXg
:/YHU3 ~Y
@BQJKPF*
Common Lisp x\(@v
(format t "Hello world!~%") 4 mj\wBp
>YG1sMV-J
0u[Vd:()v(
DOS批处理 .*FBr7rE\
@echo off 6ub-NtVu
echo "Hello, world!" L#U-dzy\
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P?|F+RoX$
Eiffel l~
3 H"
class HELLO_WORLD f</'=k
]q!,onJ
creation ogD 8qrZ6J
make dH]0(aJ
feature Z;M}.'BE
make is FuqMT`
local {qxFRi#\k
io:BASIC_IO WX.6|
do QuFzj`(
!!io sVXIR
io.put_string("%N Hello, world!") 9*fA:*T
end -- make q!UN<+k\h
end -- class HELLO_WORLD 0,a/t
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=VA5!-6<Uq
rl:6N*kK
Erlang $D;/b+a
-module(hello). ]QM{aSvXA
-export([hello_world/0]). Iv,Ub_Ll9
2rxZN\gyL
hello_world() -> io:fwrite("Hello, World!\n"). T''PzY!Qf
tE|W8=be/
O*qSc^ 9q
Forth Ml-GAkgG
." Hello, world!" CR +]?/c>M
wWq(|"
Buxn!s
Fortran ?a)X)#lQ
WRITE(*,10) ,orq*Wd
10 FORMAT('Hello, World!') kT7x
!7C
STOP <HYK9{Q
END
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SNLZU%jan
sd(Yr6~..
HTML Z]L_{=*
<HTML> C1V:_-
<HEAD> (i3V[H
<TITLE> Hello World! </TITLE> ]IF
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</HEAD> R\i8O^[
<BODY> s,z$Vt"h*K
<p>Hello World!</p> sGBm[lplz
</BODY> A=N &(k
</HTML> He&7(mQ0^
4c})LAwd&
*:r6E
HQ9+ 0cGO*G2Xr
H `5SLo=~
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:A,g :B
INTERCAL [nSlkl
PLEASE DO ,1 <- #13 mZ%"""X\Ei
DO ,1 SUB #1 <- #238 f{i~hVF
DO ,1 SUB #2 <- #112 2Ra}&ie
DO ,1 SUB #3 <- #112 5Q/&,NP
DO ,1 SUB #4 <- #0 !UzMuGj
DO ,1 SUB #5 <- #64 8%+F.r
DO ,1 SUB #6 <- #238 Wi;wu*
DO ,1 SUB #7 <- #26 )Bz2-|\
DO ,1 SUB #8 <- #248 ]TE(:]o7V
DO ,1 SUB #9 <- #168 DJWm7 t
DO ,1 SUB #10 <- #24 [quT&E
DO ,1 SUB #11 <- #16 !
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DO ,1 SUB #12 <- #158 Q4;%[7LU
DO ,1 SUB #13 <- #52 T
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PLEASE READ OUT ,1 jH5VrN*Q
PLEASE GIVE UP ^<$$h
#1,"^k^
0c-.h
Java A'zXbp:%
public class Hello h)NZG6R
{ BB$(0mM^
public static void main(String[] args) 7O.?I#
76
{ t[r<&1[&
System.out.println("Hello, world!"); ^X?D4a|;#g
} `/e
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} c6 f=r
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1P
tfAO#h tq
JSP 1QA{NAnu&
<% R>C^duos.
out.print("Hello, world!"); V(6*wQ`&
%> sxK|0i}6
tyI!y~-z
KfPYH\0
MIXAL
Wx8oTN
TERM EQU 19 the MIX console device number Z&Qz"V>$
ORIG 1000 start address Y5/SbQYf1
START OUT MSG(TERM) output data at address MSG 1WP(=7$.
HLT halt execution qOqU
CRUe:
MSG ALF "MIXAL" Xn%ty@8
ALF " HELL" H{d;,KfX
ALF "O WOR" vvi[+$M
ALF "LD " @$*LU:[
END START end of the program &s{" Vc9]
ZFxa2J~ ;
7{BTtUMAC
Nuva &^7^7:Y=?
<..直接输出..> I$y6N"|
Hello, world! w7d<Ky_C
o9XT_!Cwg
<..或者..> !
^ DQX=1
xHpB/P ~
<. Gi+ZI{)
// 不带换行 W2`/z)[*>
? "Hello, world!" yKhN1kY
2=%R>&]*
// 或者 )IFFtU~,
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// 带换行 (DnrJ.QU}t
?? 'Hello, world!' VpO+52&
.> ! N!A%
j3Yz=bsQ{c
O{{\jn|lR
OCaml b%TLvV 9F
let main () = C f(g
print_endline "Hello world!";; dI%#cf1
~lQ<#*wl
HZl//Uq
Pascal V4CL%i
program Hello; JVe!(L4H
begin bd;?oYV~
writeln('Hello, world!'); FhFP M)[
end. *dpKo&y
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05ZF>`g*
Perl 8WP|cF]
#!/usr/local/bin/perl pIhy3@bY
print "Hello, world!\n"; Hs#q 7
W1\F-:4L@
Ve9*>6i&-4
PHP \s@7pM=(
<?php 84f~.45
print("Hello, world!"); 0_f6Qrcj
?> N3m~nEj
it)!-[:bm
)Kbz gmLr
Pike Oh'C[
#!/usr/local/bin/pike 6V&HlJH
int main() c?t,,\o(}
{ x!`~+f.6
write("Hello, world!\n"); mM;5UPbZ
return 0; T$pBgS>
} {x\lK;
r"hogmFD;
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PL/I ]m=2 $mK
Test: procedure options(main); q_b,3Tp
declare My_String char(20) varying initialize('Hello, world!'); k.6gX<T
put skip list(My_String); o/\f+iz7
end Test; 5)=YTUCk
x&d:V
&fRZaq'2R
Prolog =8W'4MC
goal RA3!k&8?#
write("hello,world!"). LQ{z}Ay
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g+pj1ycw/
Python ,b'QL6>`
#!/usr/local/bin/python )2&y;{]
print "Hello, world!" 64 83v'
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Z~Vups#+f
REXX 8-geBlCE,
say "Hello, world!" \wb0%>
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e .(
1MYA/l$
Ruby TO]7 %aB
#!/usr/bin/ruby 9~|hGo
print "Hello, world!\n" PCX X[N
h7
c
E,gpi
Scheme Bxf]Lu,\U@
(display "Hello, world!") v[!ZRwk4w3
(newline) #Nv)SCc
'FC#O%l
}~+_|
sed (需要至少一行输入) lEr_4!h$rZ
sed -ne '1s/.*/Hello, world!/p' hMQh?sF/
k3VRa|Y")
D"ecwx{%;C
Smalltalk @mm~i~~KA
Transcript show: 'Hello, world!' u8N"i),
Xd@_:ds
)o N#%%SB<
SNOBOL *$*V#,V-
OUTPUT = "Hello, world!" Y<)9TU:D!
END oeF0t'%
1 R,?kUa
%O02xr=
SQL 8i Xt8XY3
create table MESSAGE (TEXT char(15)); $e/[!3CASP
insert into MESSAGE (TEXT) values ('Hello, world!'); kx6-8j3gD7
select TEXT from MESSAGE; /;V:<mekf
drop table MESSAGE; b6ui&Y8z
cM;,n X %/
CMviR<.
Tcl
Jknit
#!/usr/local/bin/tcl bc%N !d
puts "Hello, world!" WP ~]pduT
.u^4vVz
V}po
TScript yd~}CF
? "Hello, world!" y#?AW`|
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