“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。 d?idTcgs
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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》。 #PLEPB
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以下是用不同语言写成的Hello World程序的几个例子: {xcZ*m!B
Ada -XoP ia2
with Ada.Text_Io; use Ada.Text_Io; X##1!
ad
procedure Hello is G*
%t'jX9
begin dP$GThGl
Put_Line ("Hello, world!"); 1a0kfM$
end Hello; 3{Nbp
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+y+"Fyl
汇编语言 -php6$|
EfLO5$?rm
x86 CPU,DOS,TASM fr6^nDY
MODEL SMALL )-rW&"{U
IDEAL ~Z/
^c,[:
STACK 100H aAvsb$
!H][LXB~H
DATASEG YEu1#N
HW DB 'Hello, world!$' 2Tav;LKX
T<yP* b2E
CODESEG UUo;`rkT
MOV AX, @data qr\!*\9
MOV DS, AX .k{ j]{k
MOV DX, OFFSET HW <<A`aU^fX
MOV AH, 09H IHfzZHy
INT 21H S&C1 TC
MOV AX, 4C00H l*b)st_p%
INT 21H 3q[WHwmm
END iL{M+Ic
ChryJRuwv5
K[\'"HyQ,X
x86 CPU,GNU/Linux,NASM S/vf'gj
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). c47")2/yO
;Enter this into "hello.asm" then type: Nb2Qp
K
;"nasm -f elf hello.asm" &}mw'_ I
;"ld hello.o -o hello" C8N{l:1f]
;"./hello" r9 y.i(j
Vpfp}pL
section .data ;data section declaration TfxwVPX
msg db 'Hello World!',0AH C9n}6Er=,
len equ $-msg ;string length .UCt|> $
'+'CbWgY
section .text ;code section declaration NY$uq+Z>
global _start ;entry point (start of execution) I[MgIr^
_start: mov edx,len ;string length Thy=yz;p
mov ecx,msg ;string start ln*icaDqf
mov ebx,1 ;file handle: stdout +YOKA*
mov eax,4 ;sys_write fqz28aHh
int 80h ;kernel system call +eQe%U
G |*(8r()
mov ebx,0 ;return value Y /TlE?
mov eax,1 ;sys_exit Hs"(@eDV&J
int 80h ;kernel system call /z7VNkD
u/b7Z`yX}
?71+f{s
x86 CPU,Windows,MASM32 :vx$vZb
.386 F1;lQA*7K.
.model flat,stdcall ,iNv'
option casemap:none y #f
QPR
;Include 文件定义 vP%tk s+.
include windows.inc pi( -A
include user32.inc Mj>}zbpk/
includelib user32.lib i[C~5}%
include kernel32.inc Bsf7mcXz7z
includelib kernel32.lib TjWE_Bq]g
;数据段 }*]B-\>
.data 05Fz@31~
szCaption db 'A MessageBox!',0 rr`;W}3
szText db 'Hello,world!',0 dCYCHHHF
;代码段 rjt8fN
.code _R|Ify#J
start: lA!"z~03*
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK I-D^>\k+
invoke ExitProcess,NULL t22;87&|
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Uk*IpP`
end start P;ZU-G4@
U=Y)V%
[$(%dV6O
AWK C-eA8pYY/
BEGIN { print "Hello, world!" } PupM/?57
2'jOP"G
\ b
V6@#,
BASIC !{et8F@d|
传统版BASIC(例如GWBASIC): 'z@ 0
}K1 0Po'
10 PRINT "Hello, world!" hD,:w%M
20 END MiT}L
DDT_kK;
或在提示符输入: -hcS]~F
nZ1zJpBmI
?"Hello, world!":END gwrYLZNGI
+=Jir1SLV
现代版BASIC(例如Quick BASIC): 2I3h
MD0
C,V%B
Print "Hello, world!" 'X).y1'
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以下的语句在Quick BASIC中同样有效: 'crlA~/
(YBMsh
? "Hello,world!" [L`ZE*z
( m\$hX
7qO a
;^T
BCPL Tm^89I]L
GET "LIBHDR" #1c]PX
*b *G2f^
LET START () BE I
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$( # ,uya2!)
WRITES ("Hello, world!*N") Mwb/jTp
$) ]Y6cwZOe
D.D$#O_n.S
AT2v!mNyCw
Befunge ,y4I[[
"!dlrow olleH">v 65z"
, !Bz0^1,L
^_@ 1XG!$4DW
EcIE~qs
4p%A8%/q
Brainfuck HCK|~k
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< QY/hI`
+++++++++++++++.>.+++.------.--------.>+.>. I`[i;U{CK
4%WzIzRb
kK8itO
C IcP)FB4
#include <stdio.h> d@w~[b
R [H+qr
int main(void) tH=P6vY
{ ,1'4o3
printf("Hello, world!\n"); jVLA CWH
return 0; FYs)MO
} RMO,ZVq
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fQrhsuCrC
C++ Z\[N!Zt|
#include <iostream> q'pK,uNW
[ dtbkQt,c
int main() Cs2;z:O]
{ aA7=q=
std::cout << "Hello, world!" << std::endl; fEB7j-t
return 0; Cg*H.f%Mr
} .4.b*5
MO;X>D =
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C++/CLI +cb6??H
int main() TW !&p"Us+
{ ceNix!P
System::Console::WriteLine("Hello, world!"); cj11S>D
} "3FihE]k
6TP7b|
@aJ!PV'ms
C# (C Sharp) d[rv1s>i
class HelloWorldApp c8Z wr]DF
{ cqxVAzb
public static void Main() x8GJY~:SW
{ s3Cc;#
System.Console.WriteLine("Hello, world!"); Dk48@`l2
} 8p[)MiC5W^
} vn/.}GkpU
5nbEf9&
/VG2.:
COBOL s+tGFjq
IDENTIFICATION DIVISION. -G6U$
PROGRAM-ID. HELLO-WORLD. &/,|+U[
}i!J/tJ)b
ENVIRONMENT DIVISION. O|_h_I-2
1}~(Yj@f%
DATA DIVISION. vloF::1
YKQr,
Now
PROCEDURE DIVISION. 8QMPY[{
DISPLAY "Hello, world!". Sna4wkbS
STOP RUN. a22XDes=
hB{jUP)";
4@xE8`+bG
Common Lisp HaIM#R32T
(format t "Hello world!~%") hlt[\LP=$
b86}% FM
Uix6GT;
DOS批处理 'uy/o)L
@echo off vTn}*d.K=
echo "Hello, world!" \l~*PG2
\6\<~UX^
w6j/ Dq!
Eiffel m# =z7.XrX
class HELLO_WORLD (W}bG>!#Q8
sJNFFOz
creation 6Cp]NbNrq
make 8_N]e'WUh
feature .9.2Be
make is i~r l o^
local NIw\}[-Z0E
io:BASIC_IO IsR!'%Pu
do Jec'`,Y
!!io _o8?E&d
io.put_string("%N Hello, world!") R4-~j gzx
end -- make X]y)qV)a[c
end -- class HELLO_WORLD }\C-}
Q
V*~Zs'L'E
=JmT:enV
Erlang 2it?$8#i
-module(hello). CD8}I85K
-export([hello_world/0]). RD.V'`n"
[<KM?\"1<
hello_world() -> io:fwrite("Hello, World!\n"). GAAm0;
aFLO{t r`
IY*EA4>
Forth `He,p -
." Hello, world!" CR '}9JCJ
(P`3 @H
=)7s $
p
Fortran )(@Hd
WRITE(*,10) AQ='|%
10 FORMAT('Hello, World!') t2"FXTAq
STOP Z:_D0jG
END FJd]D[h
e zOj+vz
3*@5S]]
HTML 1</kTm/Qa
<HTML> `HBf&Z
<HEAD> oqeSG.1
<TITLE> Hello World! </TITLE> !Xph_SQ!B=
</HEAD> &
j+oJasI
<BODY> wKsT7c'
<p>Hello World!</p> $r3i2N-I
</BODY> M4W5f#C5Ee
</HTML> nak Yn
tzh1s
i
R,Vd.-5M
HQ9+ {+@bZ}57
H b2FO$Os
o-Ga3i 8
mbueP.q[?
INTERCAL h3;bxq!q
PLEASE DO ,1 <- #13 Z@$8I{}G
DO ,1 SUB #1 <- #238 YSe.t_K2C
DO ,1 SUB #2 <- #112 fX|Y;S-@+
DO ,1 SUB #3 <- #112 tq|hPd<C
DO ,1 SUB #4 <- #0 =*LS%WI
DO ,1 SUB #5 <- #64 lMbAs.!
DO ,1 SUB #6 <- #238 &kpwo )
DO ,1 SUB #7 <- #26 (zFi$
DO ,1 SUB #8 <- #248 y? co|
DO ,1 SUB #9 <- #168 .?hP7;hhI
DO ,1 SUB #10 <- #24 NW&b&o
DO ,1 SUB #11 <- #16 GbaEgA'fa
DO ,1 SUB #12 <- #158 icgSe:Ci
DO ,1 SUB #13 <- #52 qZA).12qS
PLEASE READ OUT ,1 '3 ^+{=q
PLEASE GIVE UP
l
c '=mA
2Roc|)-47
_"w2U q
Java _zwUE
public class Hello 1N>|yQz
{ o+$7'+y1n-
public static void main(String[] args) b 'pOJS
{ Ez-[
)44/
System.out.println("Hello, world!"); ,9o"43D:a|
} v7`HQvQEz=
} fwRZ5`v<
G@Z?&"
x3"#POp
JSP X<%Q"2hW
<% '&|=0TDd+
out.print("Hello, world!"); 9^p;UA
%> }I2@%tt?
)6J9J+%bi
iS<I0\D
MIXAL Aj4T"^fv
TERM EQU 19 the MIX console device number IDG}ZlG
ORIG 1000 start address d|yAs5@
START OUT MSG(TERM) output data at address MSG 2FW\O0U
HLT halt execution jYhB
+|
MSG ALF "MIXAL" `u&Zrdr,
ALF " HELL" & J2M1z%
ALF "O WOR" F;<xnC{[
ALF "LD " SK#(#OQoh
END START end of the program <h'5cO
uPl\I6k
#Q`dku%V:
Nuva AQiwugs
<..直接输出..> H"dJ6
Hello, world! >\Ww;1yV
k-{<=>uM
<..或者..> d >t<_}
+lMX{es\O
<. Cy=Hy@C
// 不带换行 1jF`5k
? "Hello, world!" Ls] g
o_^?n[4
// 或者 _zwG\I|Q
O2%?
// 带换行 (j3xAA
?? 'Hello, world!' aD$v2)RR
.> !74S
Y/ .Z.FD`
?3.b{Cq{-
OCaml >)M`IU[d^.
let main () = ?}U(3
print_endline "Hello world!";; io{@^1ab
TO?R({yx*
M 4?ig}kh
Pascal ikvWh<=>H
program Hello; 2-Ej4I~
begin esMX-.8Cx
writeln('Hello, world!'); EH!
q=&d
end. ~2QR{; XQ
N%*5 T[.
~U@;gLoD
Perl mSb#Nn6W
#!/usr/local/bin/perl "q.\>MCv
print "Hello, world!\n"; "Pu!dJ5[]
[Q/TlO t5
HV{wI1
PHP ^5h]Y;tx
<?php K+3IWZ&+dG
print("Hello, world!"); 9vGu0Um
?> g|vNhq0|i
=06gj)8
EkjN{$*
Pike y+c|vdW%
#!/usr/local/bin/pike )\J+Kiy)
int main() UJCYs`y
{ 3 I@}my1
write("Hello, world!\n"); rMLp-aR'
return 0; jw^<IMAG\8
} !y@NAa0
mUdOX7$c>
0;AA/
PL/I '":lB]hS
Test: procedure options(main); (nlvl?\d
declare My_String char(20) varying initialize('Hello, world!'); e
:%ieH<
put skip list(My_String); d9;g]uj`
end Test; ;7 E7!t^
iB%gPoDCL@
e%@~MQ-
Prolog ToXki,
goal ,D]QxbwZ
write("hello,world!"). 7b;I+q
N343qU
,y
2$cO_>
Python $_o-~F2i5
#!/usr/local/bin/python #xQr<p$L6
print "Hello, world!" x,|hU@h
=/y]d<g
LYz.Ci}
REXX 2(u,SQ
say "Hello, world!" $o0iLFIX/
'rO!AcdLU
19Mu61
Ruby D6>2s\:>vp
#!/usr/bin/ruby t>urc
print "Hello, world!\n" \Zqng
Nn~~!q
:D%"EJ
Scheme lOuHVa*}
(display "Hello, world!") 6@{(;~r
(newline) 1 u| wMO
%,6#2X nX%
#\.,? A}9
sed (需要至少一行输入) #h8Sq~0
sed -ne '1s/.*/Hello, world!/p'
A: 5x|
j53*E
)d
im9G,e
Smalltalk ^S UPi
Transcript show: 'Hello, world!' ;t<QTGJ
b[t> te
s.N7qO^:E
SNOBOL xLNtIzx
OUTPUT = "Hello, world!" Tx|Ir+f6L
END KxYwJ
Y;@>b{s
6:Ch^c+IZ
SQL XC0bI,Fu,
create table MESSAGE (TEXT char(15)); #{?PbBE}
insert into MESSAGE (TEXT) values ('Hello, world!'); %Y<| ;0v
select TEXT from MESSAGE; FbaEB RM
drop table MESSAGE; ,2j&ko1
Xjo5v*P u
[F0s!,P
Tcl 4zev^FR
#!/usr/local/bin/tcl "HElB9
puts "Hello, world!" Tl$[4heE
4wa`<H&S5
xO^:_8=&:
TScript 5p<ItU$pnL
? "Hello, world!" !%^^ \,
x }\64
P
`}zlml
Turing *c~T@m~DR
put "Hello, world!" `x
l
WN{ 9
?t/~lv
UNIX-style shell x(hE3S#+
程序中的/bin/sh可改为您使用的shell p7veQ`yNc
z.$4!$q
#!/bin/sh ,Sq/y~
echo 'Hello, world!' WG N=Y~E
//T>G_1
??PC
k1X
GUI Izhee%c
"x=f=;
Delphi #33fGmd[
program HelloWorld; @hJ%@(
uses tk!t
Y8j
Dialogs; tZ}
v%3
begin 6l5:1|8b,!
ShowMessage('Hello, World!'); &u /Nf&A
end. [s"O mAy4
O4r0R1VQM
oFy=-p+C
Nuva /tP|b_7O
<. +W:=e,=
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) jT8#C=a7
.> CK,7^U
RIb4!!',c
OK{quM5
Visual Basic /4a._@1h[y
MsgBox "Hello, world!" k5D%y3|9
'或者 &