“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。 }MZan" cfo
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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》。 D0%FELG05
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以下是用不同语言写成的Hello World程序的几个例子: )1z4q`
Ada O)<r>vqe}
with Ada.Text_Io; use Ada.Text_Io; x-~-nn\O
procedure Hello is pI^=B-7
begin nZW4} ~0j
Put_Line ("Hello, world!"); >\\5"Sf
end Hello; Vu|dV\N0*
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XARSGAuw
汇编语言 a-Y6w5
w|G~Il
x86 CPU,DOS,TASM )kA2vX^=Z
MODEL SMALL 59MR|Jt
IDEAL cju@W] !
STACK 100H 32KR--mn%
9S"N4c>
DATASEG Gc}0]!nrW9
HW DB 'Hello, world!$' 1Zq
$~hdm$
CODESEG /,t|
!)\]
MOV AX, @data Em9my2oE
MOV DS, AX ScHlfk
p
MOV DX, OFFSET HW onh?/3l
MOV AH, 09H t'Htx1#Zc[
INT 21H W9jNUZVXE#
MOV AX, 4C00H :~r#LRgc
INT 21H Ph"iX'J
END 3:O+GQ*
W:>J864!
mS7E_A8
x86 CPU,GNU/Linux,NASM wy\o*P9mG)
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). z@n+7p`w
;Enter this into "hello.asm" then type: Sgx+V"bkT
;"nasm -f elf hello.asm" VVN#
$
;"ld hello.o -o hello" A?sNXhh
;"./hello" g\j>qUjs%Q
C&oxi$J:p+
section .data ;data section declaration V%o#AfMI_
msg db 'Hello World!',0AH m`a>,%}P"
len equ $-msg ;string length j, ZW[*M
9dw0<qw1%
section .text ;code section declaration ?:JdRnH \
global _start ;entry point (start of execution) s#`cX0L)
_start: mov edx,len ;string length ;$[VX/A`f
mov ecx,msg ;string start QS%,7'EG
mov ebx,1 ;file handle: stdout wK ][qZ ]
mov eax,4 ;sys_write !HbqbS22
int 80h ;kernel system call KgL<}=S
EGr|BLl
mov ebx,0 ;return value T R+Q4Y:
mov eax,1 ;sys_exit rn[$x(G
int 80h ;kernel system call 7BVXBw
Cd$dnHVh
.$n$%|"H-
x86 CPU,Windows,MASM32 r=xTs,xx
.386 k q/t]%(
.model flat,stdcall !XkymIX~O.
option casemap:none :Xh_$4~^Y
;Include 文件定义 7j4ej|Fjo
include windows.inc rwasH,+
include user32.inc C+ZQB)gn
includelib user32.lib ab8oMi`z
include kernel32.inc qr7 X-[&
includelib kernel32.lib -ryDsq
;数据段 3(cU)
.data e4[-rkn{hl
szCaption db 'A MessageBox!',0 )er?*^9Z
szText db 'Hello,world!',0 HTR "mQ
;代码段 3P%w-qT!N
.code 82G lbd)
start: fho=<|-
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK OL,/-;z6
invoke ExitProcess,NULL V)_H E
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrZ7Sr!/V
end start 94Kuy@0:+
/k4^&
>C*?17\
AWK ;:#?~%7>
BEGIN { print "Hello, world!" } e;&{50VY
$gj+v+%N
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BASIC =;'ope(?S
传统版BASIC(例如GWBASIC): 7/5NaUmPTt
2)HxW}o
10 PRINT "Hello, world!" 3D 4]yR5
20 END sw 3:HNG=
j`[yoAH
或在提示符输入: knNhN=hG+
P3,Z5|)
?"Hello, world!":END $M}k%Z
&;r'{$
现代版BASIC(例如Quick BASIC): -z>Z0viA
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Print "Hello, world!" <wd4^Vr!2
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以下的语句在Quick BASIC中同样有效: ZTgAZ5_cz
qb>|n1F_
? "Hello,world!" h;4y=UU
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!R] CmK
BCPL 6,V.j>z
GET "LIBHDR" u@:=qd=\
s&_IWala
LET START () BE pR@GvweA
$( &dwI8@&
WRITES ("Hello, world!*N") f2R+5`$
$) laD.or
[#,X$O>
i SAidK,
Befunge YP
.%CD(K
"!dlrow olleH">v 8IT_mjj
, @y;tk$e
^_@ w ufKb.4`
4? /ot;>2
5w,YBUp
Brainfuck ZhJ|ZvJ
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< V5hlG =V
+++++++++++++++.>.+++.------.--------.>+.>. @6I[{{>X
&ls!IN
x=)30y3*;
C 1Hk<_no5
#include <stdio.h> mn6p s6OB
v#<+n{B
int main(void) LF-+5`
{ +hKPOFa'
printf("Hello, world!\n"); Ph!KL\
return 0; 1,;qXMhK`;
} No92Y^~/
vCU&yXGl
fB @pwmu
C++ 5@%=LPV
#include <iostream> ^v'g ~+@o
|"tV["a
int main() D!D%.
{ [(e`b
std::cout << "Hello, world!" << std::endl; hcp'+:
return 0; HNHhMi`w
} o y%g{,V
DRBYH(
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C++/CLI !f]3Riw-=,
int main() m%$E[cUW!
{ dE9aE# o
System::Console::WriteLine("Hello, world!"); C7*Yg$`{
} 2QuypVC ]
)*L?PT
?$8 ,j+&I
C# (C Sharp) =B{$U~}
class HelloWorldApp 5A=xF j{
{ !E>3N:
public static void Main() "F.J>QBd
{ O9 Au =
System.Console.WriteLine("Hello, world!"); HIp {< M3
} Rx"VscB6z
} [r<
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V{aIhH>P
}y=n#%|i.
COBOL k3|9U'r!c
IDENTIFICATION DIVISION. b!tZ bX#
PROGRAM-ID. HELLO-WORLD. E6&uZr
r Xk
ENVIRONMENT DIVISION. :w`i
kU9AfAe
DATA DIVISION. LF,c-Cv!jL
;7og
PROCEDURE DIVISION. b8-^wJH!
DISPLAY "Hello, world!". 1nM?>j%k
STOP RUN. j~j
V`>A
ne~#{q
GH)+yD[o
Common Lisp ~|d?o5W
(format t "Hello world!~%") [`nyq )
PT*@#:MA
+z/73s0~
DOS批处理 rN!9&
@echo off UtW3KvJ#=
echo "Hello, world!" +wgUs*(W
Fe>#}-`
g=' 2~c
Eiffel Y?SJQhN6W
class HELLO_WORLD oTa+E'q
NZ? =pfK\s
creation E]Gq!fA&<
make ;0}"2aGY
feature Z"8cGN'
make is 2OOj8JS
local eMMiSO!3
io:BASIC_IO VQJ5$4a&
do "%iR-s_>
!!io Rn^N+3o'M
io.put_string("%N Hello, world!") MhB=+S[@
end -- make ?=o]Wx0(9
end -- class HELLO_WORLD ;."{0gq
,3TD $2};.
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Erlang '`VO@a
-module(hello). ;iI2K/ 3
-export([hello_world/0]). s5|)4Zac
8{^GC(W{]
hello_world() -> io:fwrite("Hello, World!\n"). Yy;1N{dbT
46JP1
\}&w/.T
Forth dufHd
." Hello, world!" CR hzVr3;3Zn
VTkT4C@I;Y
F>{uB!!L4
Fortran BP><G^
WRITE(*,10) :<G+)hIK
10 FORMAT('Hello, World!') TgG)btQ
STOP ^O9m11
END <}>-ip?
g(/O)G.
Z19y5?uR
HTML
8y
)i,"
<HTML> Tfs9<k>G#
<HEAD> j[
YTg]
<TITLE> Hello World! </TITLE> 9_^V1+
</HEAD> 78A4n C
<BODY> d`*vJ#$>2
<p>Hello World!</p> ApB'O;5
</BODY> m`6`a|Twp$
</HTML> _'v )Fy
V^H47O;VC
9GOyVKUv
HQ9+ 3Jit2W4
H Xq$0% WjG
C/#/F#C
4h@of'
INTERCAL g5]DA.&(
PLEASE DO ,1 <- #13 *\5H\s9<
DO ,1 SUB #1 <- #238 R5~m"bE
DO ,1 SUB #2 <- #112 1KEPD@0oxx
DO ,1 SUB #3 <- #112 [_GR'x'0x
DO ,1 SUB #4 <- #0 n m$G4Q
DO ,1 SUB #5 <- #64 dTNgrW`4
DO ,1 SUB #6 <- #238 4ov~y1Da)
DO ,1 SUB #7 <- #26 JIkmtZv
DO ,1 SUB #8 <- #248 :zZM&r>
DO ,1 SUB #9 <- #168 z>q_]U0
DO ,1 SUB #10 <- #24 gC:E38u
DO ,1 SUB #11 <- #16 "A$Y)j<#G
DO ,1 SUB #12 <- #158 ^E8Hv
DO ,1 SUB #13 <- #52 L^Af3]]2
PLEASE READ OUT ,1 D7oV&vXg
PLEASE GIVE UP Eu}A{[^\
7~g0{W>Zm
8XE0 p7
Java $a]dxRkz
public class Hello /FXfu
{ &Vm[5XW
public static void main(String[] args) .5zJ bZ9
{ ;]e"bX
System.out.println("Hello, world!"); V)@scB|>,
} N($]))~3&
} =sJHnWL[
[C#pMLp,~
=1uI >[aN
JSP Np)!23 "
<% {RO=4ba{J
out.print("Hello, world!"); &}?e:PEy
%> nhxl#
tt91)^GdYa
od|.E$B
MIXAL vDL/PXNC
TERM EQU 19 the MIX console device number sRG3`>1
ORIG 1000 start address smNr%}_g
START OUT MSG(TERM) output data at address MSG 6C5qW8q]u3
HLT halt execution %?y`_~G
MSG ALF "MIXAL" {hR23eE)#
ALF " HELL" c}cboe2
ALF "O WOR" /267Q;d
C)
ALF "LD " EORAx
END START end of the program l\GNd6)H
/otgFQ_
D[?|\?
Nuva Uh}yHD`K
<..直接输出..> W>49,A,q
Hello, world! XsC bA8Qv
:zoX
Xo
<..或者..> 'LI)6;Yc
mLqm83
<. O@$i
// 不带换行 C\[UAxZ3X
? "Hello, world!" &kE|~i:=,9
oE&[W>,x
// 或者 C,rZ}-
7]Yd-vA
// 带换行 iE5^Xik,
?? 'Hello, world!' `VbG%y&I
.> c`Cn9bX
YKk%;U*
_XtY/7n
OCaml <k1gc,*
let main () = 4 n(
f/
print_endline "Hello world!";; W525:h52{
pQi -
ZG|T-r;~
Pascal c9'b`# '
program Hello; Ws@s(5r
begin 9p<l}h7g
writeln('Hello, world!'); ??;[`_h{bz
end. }Q_i#e(S
v]>(Ps )R
8'$n|<1X
Perl y.2 SHn0
#!/usr/local/bin/perl N3)EG6vE*
print "Hello, world!\n"; .nJGxz+X"
<Th.}=
j7zQ&ANF
PHP D1a4+AyI
<?php &iivSc;#
print("Hello, world!"); !k^\`jMzw
?> 'UKB
pm/
Nt?B(.G
b7/4~_s
Pike }ls>~uN
#!/usr/local/bin/pike .u&g2Y
int main() jC=_>\<|X*
{ P?
n`n!qZ
write("Hello, world!\n"); $ hapSrS
return 0; (H7q [UG|
} Vow+,,oh
HV?@MBM
h";sQ'us
PL/I 5Z'pMkn3
Test: procedure options(main); c3+vtP&
declare My_String char(20) varying initialize('Hello, world!'); j.sf FS
put skip list(My_String); !xSGZD=AD
end Test; n&^Rs)%v
ek<U2C_u#
z!tHn#
Prolog x.I-z@\E
goal cD]t%`*
write("hello,world!"). IN"qJ3<k
I`7[0jA~
a,.9eHf
Python y)2]:nD`B
#!/usr/local/bin/python 9j/B3CjW
print "Hello, world!" Fa8>+
|dO1w.x/
G9jtL$}E<
REXX ]4PG[9J@
say "Hello, world!" 0T*jv! q>
/$E1!9J
g"xZ{k_3
Ruby ev`p!p
#!/usr/bin/ruby Y (Q8P{@(
print "Hello, world!\n" YAD9'h]d\
!Qy3fs
|
=&r)
~
Scheme :gmVX}
(display "Hello, world!") y9 "!ys
(newline) zPn8>J<.0Q
NW$Z}?I
& Ef'5
sed (需要至少一行输入) U<t Qj`
sed -ne '1s/.*/Hello, world!/p' ry:tL0;;e#
2ma.zI@^u9
/dIiFr"e}G
Smalltalk -7CkOZT
Transcript show: 'Hello, world!' n']@Spm
,+XQ!y%
vjW S35i
SNOBOL XS>4efCJ
OUTPUT = "Hello, world!" J?{uG8)
END r(RJ&