“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。 0xsvxH"*
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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》。 IMBqy -q
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以下是用不同语言写成的Hello World程序的几个例子: X6PfOep
Ada j \SDw
with Ada.Text_Io; use Ada.Text_Io; IBR;q[Dj}
procedure Hello is k,H4<")H
begin wvfCj6}S&
Put_Line ("Hello, world!"); v / a/
end Hello; |Q$C%7
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gpPktp2
汇编语言 hPl;2r
/c09-$M
x86 CPU,DOS,TASM lB,MVsn18
MODEL SMALL (7"qT^s3
IDEAL i"r=b%;;
STACK 100H ='s2S5#1
G|o-C:~
DATASEG Z-WWp#b
HW DB 'Hello, world!$' q,2
@X~T
P9c1NX\-
CODESEG iGR(
MOV AX, @data 0FXM4YcrJO
MOV DS, AX bw@tA7Y
MOV DX, OFFSET HW *H;&hq
MOV AH, 09H SN11J+
INT 21H lcih
[M6z
MOV AX, 4C00H d(k`Yk8
INT 21H i+2J\.~U#G
END y};qo'dlt
9,,1\0-T*
3#dUQ1qo6
x86 CPU,GNU/Linux,NASM 'oo]oeJ-
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Cu>pql<O
;Enter this into "hello.asm" then type: eudPp"Km
;"nasm -f elf hello.asm" \HR QSfGt
;"ld hello.o -o hello" y`'Ly@s
;"./hello" mv5!fp_*7
3b|.L
Jz+
section .data ;data section declaration "<=^Sm
msg db 'Hello World!',0AH A:N!H_x
len equ $-msg ;string length fY>\VY$>
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section .text ;code section declaration KExfa4W 3{
global _start ;entry point (start of execution) &%^[2^H8"
_start: mov edx,len ;string length z8A`BVqI
mov ecx,msg ;string start u{J:wb
mov ebx,1 ;file handle: stdout )m?oQ#`m
mov eax,4 ;sys_write =uD2j9!"7
int 80h ;kernel system call ^y&l!,(A
ZgN*m\l
mov ebx,0 ;return value `9@!"p
f
mov eax,1 ;sys_exit LV`- eW
int 80h ;kernel system call lG q;kIQ
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T
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x86 CPU,Windows,MASM32 a29mVmi >
.386 9gjx!t>`H
.model flat,stdcall K":-zS
option casemap:none XfB;^y=u8
;Include 文件定义 2 !{P<
include windows.inc NAL%qQ
include user32.inc $U!w#|&
includelib user32.lib x`a@h\n
include kernel32.inc <OpiD%Ctx
includelib kernel32.lib u K 8r
;数据段 w:pc5N>we0
.data NJn~XCq
szCaption db 'A MessageBox!',0 gJ2R(YMF
szText db 'Hello,world!',0 N$p O] p
;代码段 9n$$D;
.code _QCAV+K'
start: eQzTb91
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK KPKby?qQ^
invoke ExitProcess,NULL dBCg$Rud&
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (/PD;R$b
end start 6Ba>l$/q
c,x2
;u, 5
2
AWK n1$p
esr
BEGIN { print "Hello, world!" } tw^V?4[Miu
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BASIC 0M pX.0
传统版BASIC(例如GWBASIC): D7 A{*Tm
I9B B<~4o
10 PRINT "Hello, world!" Bojm lVg
20 END r)ga{Nn,.
)07M8o!^l
或在提示符输入: C!v0*^i
tBdvk>d
?"Hello, world!":END erqg|TsFj
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现代版BASIC(例如Quick BASIC): M=@U]1n*c
==Ju2D?%
Print "Hello, world!" yv,9 0+k
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以下的语句在Quick BASIC中同样有效: c~@I1M
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? "Hello,world!" lkBab$S)
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iQ~cG[6
BCPL :'#BU:
GET "LIBHDR" hnL(~
n0nkv[
LET START () BE 9NKZE?5P|D
$( HH8a"Hq)
WRITES ("Hello, world!*N") BYP,}yzA
$) !dGy"-i$h
1 BVivEG
;z!~-ByzL
Befunge m&b!\"0
"!dlrow olleH">v .b5B7x}
, Ywlym\
[+
^_@ ai#0ZgO
^h=;]vxO
65qH
Brainfuck v='7.A
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 4TUe*F@
ML
+++++++++++++++.>.+++.------.--------.>+.>. Z3"f7l6
Ix-FJF-
dEns|r
C si0jXue~j\
#include <stdio.h> }4\>q$8'
X=_N7!
int main(void) Fpl<2eBg4
{ ,c}Q;eYc3
printf("Hello, world!\n");
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return 0; PJ9JRG7j
} H?M8j] R-)
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naW}[y*y;
C++ L<5go\!bV
#include <iostream> d(42ob.Tr
O" n /.`
int main() P#"vlNa
{ Qq^>7OU>Co
std::cout << "Hello, world!" << std::endl; m`E8gVC
return 0; TE^BfAw@
} Uo5l
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kQwBrb4
C++/CLI WRL &tz
int main() #W'jNX,h
{ W/xb[w9v
System::Console::WriteLine("Hello, world!"); l\jf]BHX'
} i$ "B
FtT+Q$q=
V 1;n5YL
C# (C Sharp) a{,EX[~b
class HelloWorldApp EivZI<<a
{ :8jHN_u
public static void Main() PtwE[YDu
{ :W 8DgL>l
System.Console.WriteLine("Hello, world!"); B?$pIG^Mn
} YM/^-[k3
} sf@g $
@y{Whun~
Z#nj[r!l}
COBOL bsR&%C
IDENTIFICATION DIVISION. NA !;#!
PROGRAM-ID. HELLO-WORLD. D 0\
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ENVIRONMENT DIVISION. VO/"
ot
pX*Oc6.0mu
DATA DIVISION. ?UQE;0 B
,d@.@a]
`
PROCEDURE DIVISION. >/eQjp?:
DISPLAY "Hello, world!". VctAQ|h^
STOP RUN. DpoRR`
C/tn0
-D`*$rp,
Common Lisp \<]nv}1O
(format t "Hello world!~%") hA/K>Z
sGc4^Z%l?
_Z@- q
DOS批处理 0ppZ~}&
@echo off C$-IDBXK
echo "Hello, world!" 1j9 .Q;9
^t?P32GJ
Ik(TII_
Eiffel X+
h|sy
class HELLO_WORLD km4::'(6
t/#[At5p=
creation =uIu0_v
make 9^c\$"2B
feature zgJ%Zr!~
make is ccZ A
local *3s4JK
io:BASIC_IO Y*dzoN.sW
do 4-lEo{IIM
!!io d {T3
io.put_string("%N Hello, world!")
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end -- make PGOi#x
end -- class HELLO_WORLD 1#&*xF"
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BJ @tUn
Erlang w`UB_h#Bl
-module(hello). 8m2-fuJz
-export([hello_world/0]). =ugxPgn
#,0%g1
hello_world() -> io:fwrite("Hello, World!\n"). a)`b;]+9
0' @^PzX
'/Hx0]V
Forth ix=HLF-0zC
." Hello, world!" CR @c9VCG D
ezY
_7
"'~'xaU!=a
Fortran JD^(L~ n]
WRITE(*,10) N;9@-Tb
10 FORMAT('Hello, World!') wh<+.Zp
STOP k "LbB#Q
END 9axJ2J'g
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CVyqr_n65/
HTML +>@<'YI<
<HTML> Sdy\s5
<HEAD> +3(1QgYM%
<TITLE> Hello World! </TITLE> 6NVf&;laQ
</HEAD> {*r*+}@
<BODY> Mp:tcy,*
<p>Hello World!</p> ^^qB=N[';
</BODY> H$9--p
</HTML> Ont4-AP
9_n!.zA<
AhZ8B'Ee
HQ9+ s"*zyLUUo
H 1NtN-o)N?
:[ F`tDL
S>Z V8
INTERCAL ?a+tL'D[
PLEASE DO ,1 <- #13 &~29 %Ns
DO ,1 SUB #1 <- #238 N X4!G>v
DO ,1 SUB #2 <- #112 I!%T!B540
DO ,1 SUB #3 <- #112 Em N0K'x
DO ,1 SUB #4 <- #0 Hc ]/0:
DO ,1 SUB #5 <- #64 K{%}kUj>
DO ,1 SUB #6 <- #238 G,FYj'<!7,
DO ,1 SUB #7 <- #26 #DXC6f
DO ,1 SUB #8 <- #248 )cbe4
DO ,1 SUB #9 <- #168 <]r.wn=}M
DO ,1 SUB #10 <- #24 co r?#
DO ,1 SUB #11 <- #16 x JQde 4
DO ,1 SUB #12 <- #158 {.GC7dx
DO ,1 SUB #13 <- #52 ,a9<\bd)
PLEASE READ OUT ,1 Vv~rgNh
PLEASE GIVE UP ,^3eMn
c^S^"M|
9[N+x2q
Java {'4h.PB+r
public class Hello J@54B
{ -ve{O-;
public static void main(String[] args) gk >-h,>"
{ 1a;Le8
System.out.println("Hello, world!"); zRbooo{N
} JV=d!Gi[C
} L1D{LzlBti
b*LEoQSl0V
"45O!AjP
JSP &~ QQZ]q6
<% I2hX;pk,
out.print("Hello, world!"); "Sz pFw
%> ()6)|A<^U
lJP6sk
aL$m
MIXAL h?jy'>T?b2
TERM EQU 19 the MIX console device number M:z)uLDw
ORIG 1000 start address aT$q1!U`j2
START OUT MSG(TERM) output data at address MSG @C{IgV
HLT halt execution 3<LG~HWST
MSG ALF "MIXAL" IT5AB?bxH
ALF " HELL" 6?b9~xRW
ALF "O WOR" qcEiJ}-
ALF "LD " Y0:y72mK
END START end of the program 8`XT`H
8aQ\Yx
B<i)je!
Nuva 8 !]$ljg
<..直接输出..>
)T/"QF}<T
Hello, world! {y0#(8-&
p:U9#(v)
<..或者..> !Sx}~XB<
B.vg2N
<. fo9O+e s
// 不带换行 F/sXr(7
? "Hello, world!" jFf2( AR
+VE }c
// 或者 qMD 6LWJ
.<}(J#vC
// 带换行 z1XFc*5
?? 'Hello, world!' kFZw"5hb
.> C2NJrg4(
12n5{'H2%
p8o
~
OCaml jU
|0!]
let main () = ;
>Tko<
print_endline "Hello world!";; gO_{(\w*
6 "U&i9
[h SE^
m
Pascal ;A7HEx
program Hello; Ymkk"y.w
begin <yz)iCU?
writeln('Hello, world!'); hG .>>
end. xjB2?:/2
_doX&*9u
dIgaw;Ch]
Perl Vui5Z K
#!/usr/local/bin/perl teH $hd-q
print "Hello, world!\n"; ,R]hNjs-{
S G|``}OA
t"k6wv;Tq
PHP Fn.wd`'0
<?php E,&BP$B
print("Hello, world!"); ig:,: KN
?> A ^@:Ps
P -0
9r=@S
Pike XF(0>-
#!/usr/local/bin/pike L/dG0a@1X
int main() H)S" `j
{ 2V%si 6
write("Hello, world!\n"); OBaG'lrZy
return 0; @ de_|*c
} $BKGPGmh
]v j=M-:+
F* "
PL/I 6KC.l}Y*
Test: procedure options(main); a<9gD,]P
declare My_String char(20) varying initialize('Hello, world!'); Q= IA|rN
put skip list(My_String); G&$+8r
end Test; |!:ImX@
tn!z^W
g BfYm
Prolog f(~xdR))eh
goal 8wz%e(
write("hello,world!"). >ly`1t1
}la\?I
aZEi|\VU
Python "Opk:;.
#!/usr/local/bin/python ka? |_(
print "Hello, world!" vHSX3\(
fWie fv[&
k4r;t: O ^
REXX Mqc"
say "Hello, world!" AB<|iJC
!i=LQUi.
8?#4<4Ql8
Ruby Kcv7C{-/
#!/usr/bin/ruby SRs1t6&y=
print "Hello, world!\n" =c>2d.^l
,5^XjU3c=
;/?M&rX
Scheme \ cmt'b
(display "Hello, world!") !wy
Qk
(newline) Y^DS~CrM
d#E]>:w9
5VIc
sed (需要至少一行输入) )jkX&7x
sed -ne '1s/.*/Hello, world!/p' ?,~B@Kx
#G2~#\
@b[{.mU
Smalltalk
x~p8Mcv
Transcript show: 'Hello, world!' pJ35M
P(pw$
q$S
W FVx7
SNOBOL vW,dJ[N6jm
OUTPUT = "Hello, world!" <>JN3?
END 'L|& qy@
tSX<^VER7
%
C~2k?
SQL ~ED8]*H|`
create table MESSAGE (TEXT char(15)); |"h# Q[3
insert into MESSAGE (TEXT) values ('Hello, world!'); 0G`_dMN
select TEXT from MESSAGE; Y"~Tf{8
drop table MESSAGE; j9"uxw@
e0iE6:i
(
HCB\!g
Tcl R~OameRR
#!/usr/local/bin/tcl {(;dHF%{
puts "Hello, world!" mLApF5Hy
LVNq@,s
j\l9|vpp
TScript IB9[Lx
? "Hello, world!" &4 Py
/ blVm1F
7PQ03dtfg
Turing [>+R|;ln
put "Hello, world!" JGQlx-qv
xCU^4DO3p
q =sEtH=
UNIX-style shell ":s1}A
程序中的/bin/sh可改为您使用的shell al>^}:
lbM)U
#!/bin/sh A[lbBR
echo 'Hello, world!' d%1Tv1={
~uy{6U{&I
[vM ksHk4
GUI xs+pCK |
0/{$5gy&
Delphi .B2?%2S
program HelloWorld; Q72}V9I9
uses WJH-~,u
Dialogs; +M4X
r*
begin '
>a(|
ShowMessage('Hello, World!'); {
FVLH:{U^
end. }diB
4C@ .X[r
3ZdheenK9
Nuva _dOR-<
<. fik*-$V`
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) g<C_3ap/
.> {Up@\M
TZ#(G
<T] BSQk
Visual Basic ZlaU+Y(_[
MsgBox "Hello, world!" 7ux0|l
'或者 wz1fx>Q
Print "Hello, world!" /^_~NF#
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