“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。 3D"?|rd~
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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》。 RkXW(T`
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以下是用不同语言写成的Hello World程序的几个例子: `?xE-S
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Ada 5Gsjt+
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with Ada.Text_Io; use Ada.Text_Io; 8n)3'ok
procedure Hello is Nc[V kJ]
begin ` z!?!"=
Put_Line ("Hello, world!"); 2 *@.hBi
end Hello; ?o6\>[O
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汇编语言 05Go*QvV
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x86 CPU,DOS,TASM Cu+u'&U!
MODEL SMALL M-+=t8
IDEAL nfzKUJY
STACK 100H DANndXQLH
DFFB:<
DATASEG {oc7Chv=/H
HW DB 'Hello, world!$' 23=SXA!
ZpQ8KY$5
CODESEG ?e+$?8l[3
MOV AX, @data n"c3C)
MOV DS, AX #mcU);s
MOV DX, OFFSET HW Kf-rthO
MOV AH, 09H maTZNzy
INT 21H TdH~sz
MOV AX, 4C00H gdfG3d$4
INT 21H *Me{G y
END bv8GJ #
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!`F^LXGA
x86 CPU,GNU/Linux,NASM f'3sT(1&
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). AilfeHG
;Enter this into "hello.asm" then type: $*i"rlJC
;"nasm -f elf hello.asm" gR:21*&cz
;"ld hello.o -o hello" |Zrkk>GW:
;"./hello" 0ge^pO\Z
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section .data ;data section declaration =C.WM*= '
msg db 'Hello World!',0AH
@s@67\
len equ $-msg ;string length 5.e.
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section .text ;code section declaration Pb-Ft=
global _start ;entry point (start of execution) v<U +&D{
_start: mov edx,len ;string length M~&X?/8
mov ecx,msg ;string start >E3 lY/[
mov ebx,1 ;file handle: stdout <<[hZ$.
mov eax,4 ;sys_write 'U'#_mYG
int 80h ;kernel system call *=ymK*
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mov ebx,0 ;return value -P3;7_}]:h
mov eax,1 ;sys_exit wk"zpI7L
int 80h ;kernel system call ]/{987
.}l&lj@#
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x86 CPU,Windows,MASM32 @UidQX"b
.386 {<3>^ o|"
.model flat,stdcall ;Jrk#7
option casemap:none #UpxF?A(
;Include 文件定义 kGX;x}q
include windows.inc dECH/vJ^
include user32.inc HGjGV]N5
includelib user32.lib :'LG%E:b
include kernel32.inc =wy 3h0k^
includelib kernel32.lib H\Jpw
;数据段 IN%04~=H
.data ;c_pa0L
szCaption db 'A MessageBox!',0 w+0Ch1$
szText db 'Hello,world!',0 /o_h'l|PS
;代码段 1"82JN|!
.code GI:$(<
start: *jF VYg
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK *t+E8)qL
invoke ExitProcess,NULL CxOBH89(
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> HBFuA.",
end start =_L
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AWK U0M>A
BEGIN { print "Hello, world!" } HjFY>(e
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BASIC 5E+k}S]M$
传统版BASIC(例如GWBASIC): -^JGa{9*
*I}_B\kY
10 PRINT "Hello, world!" G
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20 END Uieg4I ro
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或在提示符输入: HGgw<Os-k
92k}ON
?"Hello, world!":END -~HlME*~f
e]+ [lq\p@
现代版BASIC(例如Quick BASIC): c[Mz#BWG
(Rc0 l;
Print "Hello, world!" M\s^>7es
-0)So
以下的语句在Quick BASIC中同样有效: ^gdg0y!5~
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? "Hello,world!" E5%ae (M^
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2ju1<t,8)
BCPL }fo?K|Xx
GET "LIBHDR" RhJL`>W`
2,>q(M6,EA
LET START () BE
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$( %V$ujun`
WRITES ("Hello, world!*N") N!fp;jvG
$) rGZ@pO2
IP1|$b}sq
Wb4%=2Qn
Befunge \4SFD3$&
"!dlrow olleH">v 3\,TI`^C
, Xm`K@hJ@
^_@ 8<g_JW[%
C%P"Ds=w0N
hfvs'.
Brainfuck _e_]$G/TM
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ?nFT51t/4
+++++++++++++++.>.+++.------.--------.>+.>. aNW&ib
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~X;(m<f2
C #oYX0wvl
#include <stdio.h> 9tS&$-
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int main(void) u%O^hcfb
{ 'FBvAk6
printf("Hello, world!\n"); J<_&f_K0]
return 0; LwUvM
} aAko-,URC
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&%Hj.
C++ )`rC"N)
#include <iostream> $`'^&o;&f
$gZ|=(y&r
int main() tS2lex%
{ eT+MN`
std::cout << "Hello, world!" << std::endl; 5b B[o6+
return 0; "VWxHRVg4M
} s=huOjKL]
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/$rS0@p
C++/CLI @fpxGMy&
int main() "`:#sF9S
{ )m[!HE`cZ
System::Console::WriteLine("Hello, world!"); PyHE>C%
} d*3R0Q|#{
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qRB7I:m-Wi
C# (C Sharp) 7k3":2:
class HelloWorldApp B0Z~L){i
{ /KKX;L[D(
public static void Main() v *:m|wl
{ A|>a
Gy
System.Console.WriteLine("Hello, world!"); wCvD4C.WH
} kX1hcAa
} zMrZ[AU
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fWm;cDM
H
COBOL PfrW,R~r
IDENTIFICATION DIVISION. JsPuxu_
PROGRAM-ID. HELLO-WORLD. kd\G>
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ENVIRONMENT DIVISION. 6}ax~wYct
ur#"f'|-
DATA DIVISION. 0l_-
~[9 ]M)=O0
PROCEDURE DIVISION. dy`~%lX?
DISPLAY "Hello, world!". 1xtbhk]D
STOP RUN. Vxgc|E^J
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6ldDt?iSg
Common Lisp fQx 4/4j
(format t "Hello world!~%") R4qk/@]t
b'-gy0
5?vIkf
DOS批处理 h}`<pq
@echo off OC\C^Yh*U
echo "Hello, world!" jEO;
\W@?revK
sox90o 7
Eiffel F37,u|
class HELLO_WORLD <I|ryPU9{X
jA]xpf6}
creation v5$zz w
make A`r&"i OKA
feature Y2$%%@
make is jN {ED_
local b'{D4/
io:BASIC_IO P7Y[?='v
do \|&5eeE@
!!io )O&$-4gL'
io.put_string("%N Hello, world!") U&eLj"XZ
end -- make Ns9g>~
end -- class HELLO_WORLD MoFZ
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pI^n("|
Erlang WD)[Ac[
-module(hello). Ql V:8:H$
-export([hello_world/0]). ]CL70+[^9
L]tyL)
hello_world() -> io:fwrite("Hello, World!\n"). 6a,YxR\
XnG!T$
V?rI,'F>N
Forth H5aUZ=
." Hello, world!" CR _88~uYG
L'6zs:i
7v:;`6Jb
Fortran %Mu dc
WRITE(*,10) WMC6dD_6e
10 FORMAT('Hello, World!') {l1;&y?
STOP hmi15VW
END [j/-(?+
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~p 1y+
HTML r:o!w7C:a
<HTML> \4&g5vE
<HEAD> oyd{}$71d
<TITLE> Hello World! </TITLE> m 8f_w
</HEAD> U--ER
r8
<BODY> [zfGDMG&
<p>Hello World!</p> KVntBe]I
</BODY> NSkI2>+P
</HTML> P6?Q;-\q0
qy]-YJZ
b13>>'BMB
HQ9+ #*`|}_6L
H 8_LDS
r#j*vO '
&vn9l#\(
INTERCAL cP
Y^Bf5)
PLEASE DO ,1 <- #13 v;A
DO ,1 SUB #1 <- #238 f;Dz(~hw
DO ,1 SUB #2 <- #112 XU54skN
DO ,1 SUB #3 <- #112 <*\J 6:^n
DO ,1 SUB #4 <- #0 _\<M58/z
DO ,1 SUB #5 <- #64 +l#2u#e
DO ,1 SUB #6 <- #238 ])JJ`Z8Bk
DO ,1 SUB #7 <- #26 n-Xj>
DO ,1 SUB #8 <- #248 =sm(Z;"
DO ,1 SUB #9 <- #168 YUH/tl
DO ,1 SUB #10 <- #24 AX)zSr Xn
DO ,1 SUB #11 <- #16 Psv!`K
DO ,1 SUB #12 <- #158 xWMMHIu
DO ,1 SUB #13 <- #52 kDKpuA!
PLEASE READ OUT ,1 *SW,pHYnLb
PLEASE GIVE UP @PI\.y_w
(/M c$V
t>[r88v
Java h
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public class Hello wVVe L$28
{ jL8zH
public static void main(String[] args) /IC'R"V a
{ Zry>s0
System.out.println("Hello, world!"); 7MfT~v
} tX_eN
} q}!4b'z^
c' 6H@m#=
8+u8piG
JSP gM*s/,;O"
<% Vh<`MS0X
out.print("Hello, world!"); U!5@$Fu
%> 0v_8YsZ!`$
j.6kjQN
3%} Ma,
MIXAL cm]]9z_<
TERM EQU 19 the MIX console device number %L/=heBBd
ORIG 1000 start address Hj!)S&y,$
START OUT MSG(TERM) output data at address MSG jz)H?UuDY
HLT halt execution piP8ObGjy
MSG ALF "MIXAL" H07j&
ALF " HELL" |}`5<a!6U
ALF "O WOR" 5c"kLq6r
ALF "LD " E;qwoTmul
END START end of the program 1bBK1Uw
qEAF!iB]L
5-OvPTY`M
Nuva HZ}*o%O
<..直接输出..> I ?>#neHc6
Hello, world! <%z/6I
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<..或者..> Y[!a82MTzn
I?K0bs+6
<. cGp^;> ]M
// 不带换行 0
OBkd
? "Hello, world!" ~K9U0ypH
+[ItkfSod!
// 或者 nR7\ o(!
\ p$0
// 带换行 j1ZFsTFMWp
?? 'Hello, world!' qo@dFKy
.> /Uc*7Y5j
o >Lk`\
US4Um>j
OCaml z+*Z<c5d
let main () = -?W@-*J
print_endline "Hello world!";; OLrD4 e
9zJ`;1
R%%`wmG)"
Pascal h uJqqC
program Hello; CC\z_C*P-p
begin K\b O[J
writeln('Hello, world!'); q8Dwu3D
end. i7rq;t<
qx)k1 QY
GcnY=%L?
Perl RY{tX`
#!/usr/local/bin/perl g1~I*!p
print "Hello, world!\n"; x/=j$oA
j;)6uia*A
'l|_$3
PHP yr>bL"!CA
<?php Y9;Mey*oW
print("Hello, world!"); ?_aR-[XRg
?> WM"^#=+$
I*}#nY0+
*K|aK p}
Pike D.(G 9H
#!/usr/local/bin/pike tWnm{mF
int main() ~8*oGG~s
{ zc+;VtP|8
write("Hello, world!\n"); >A&@W p1
return 0; u7?juI#Cl
} 1c#'5~nB
G+uiZ(p>
s{e(- 7'
PL/I Ug21d42Z4
Test: procedure options(main); ^d80\PXz
declare My_String char(20) varying initialize('Hello, world!'); :eW~nI.Vc
put skip list(My_String); hli10p$
end Test; !dY:S';~
bZ.N7X PH
u4@e=vWI
Prolog 6>:~?gs
goal cO,V8#H
write("hello,world!"). \'Ta8
Hc]1mM
rf->mk{
Python GYC&P]
#!/usr/local/bin/python #OWs3$9
print "Hello, world!" (0W}e(D8
jJZsBOW[8
y.p6%E_`
REXX fm%RNAPvc
say "Hello, world!" SFk#bh
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