Viết một chương trình tạo ra hình ảnh phản chiếu của chính nó. Một ví dụ, sẽ là mã lạc đà tuyệt vời đọc mã của chính nó và tạo ra hai phiên bản 2x2 nhỏ hơn. Đưa ra đầu vào:
$_='ev
al("seek\040D
ATA,0, 0;");foreach(1..3)
{<DATA>;}my @camel1hump;my$camel;
my$Camel ;while( <DATA>){$_=sprintf("%-6
9s",$_);my@dromedary 1=split(//);if(defined($
_=<DATA>)){@camel1hum p=split(//);}while(@dromeda
ry1){my$camel1hump=0 ;my$CAMEL=3;if(defined($_=shif
t(@dromedary1 ))&&/\S/){$camel1hump+=1<<$CAMEL;}
$CAMEL--;if(d efined($_=shift(@dromedary1))&&/\S/){
$camel1hump+=1 <<$CAMEL;}$CAMEL--;if(defined($_=shift(
@camel1hump))&&/\S/){$camel1hump+=1<<$CAMEL;}$CAMEL--;if(
defined($_=shift(@camel1hump))&&/\S/){$camel1hump+=1<<$CAME
L;;}$camel.=(split(//,"\040..m`{/J\047\134}L^7FX"))[$camel1h
ump];}$camel.="\n";}@camel1hump=split(/\n/,$camel);foreach(@
camel1hump){chomp;$Camel=$_;y/LJF7\173\175`\047/\061\062\063\
064\065\066\067\070/;y/12345678/JL7F\175\173\047`/;$_=reverse;
print"$_\040$Camel\n";}foreach(@camel1hump){chomp;$Camel=$_;y
/LJF7\173\175`\047/12345678/;y/12345678/JL7F\175\173\0 47`/;
$_=reverse;print"\040$_$Camel\n";}';;s/\s*//g;;eval; eval
("seek\040DATA,0,0;");undef$/;$_=<DATA>;s/\s*//g;( );;s
;^.*_;;;map{eval"print\"$_\"";}/.{4}/g; __DATA__ \124
\1 50\145\040\165\163\145\040\157\1 46\040\1 41\0
40\143\141 \155\145\1 54\040\1 51\155\ 141
\147\145\0 40\151\156 \040\141 \163\16 3\
157\143\ 151\141\16 4\151\1 57\156
\040\167 \151\164\1 50\040\ 120\1
45\162\ 154\040\15 1\163\ 040\14
1\040\1 64\162\1 41\144 \145\
155\14 1\162\ 153\04 0\157
\146\ 040\11 7\047\ 122\1
45\15 1\154\1 54\171 \040
\046\ 012\101\16 3\16
3\15 7\143\15 1\14
1\16 4\145\163 \054
\040 \111\156\14 3\056
\040\ 125\163\145\14 4\040\
167\1 51\164\1 50\0 40\160\
145\162 \155\151
\163\163 \151\1
57\156\056
nó tạo ra:
JXXXXXXXXL. JXXLm. .mJXXL .JXXXXXXXXL
{XXXXXXXXXXX. JXXXmXXXXm mXXXXmXXXL .XXXXXXXXXXX}
.XXXXXXXXXXXXXL. {XXXXXXXXXF 7XXXXXXXXX} .JXXXXXXXXXXXXX.
JXXXXXXXXXXXXXXXXL.`XXXXXX. .XXXXXX'.JXXXXXXXXXXXXXXXXL
JXXXXXXXXXXXXXXXXXXXmXXXXXXX. .XXXXXXXmXXXXXXXXXXXXXXXXXXXL
.XXXXXXXXXXXXXXXXXXXXXXXXXXXXX} {XXXXXXXXXXXXXXXXXXXXXXXXXXXXX.
.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXF 7XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XX'7XXXXXXXXXXXXXXXXXXXXXXXXXF 7XXXXXXXXXXXXXXXXXXXXXXXXXF`XX
XX {XXXFXXXXXXXXXXXXXXXXXXXF' `7XXXXXXXXXXXXXXXXXXX7XXX} XX
`X}{XXX'7XXXFXXXXX^XXXXX `' `' XXXXX^XXXXX7XXXF`XXX}{X'
`'XXX' {XXX'XXXXX 7XXXF 7XXXF XXXXX`XXX} `XXX`'
.XX} {XXF {XXXX}`XXX} {XXX'{XXXX} 7XX} {XX.
{XX `XXL `7XX} 7XX} {XXF {XXF' JXX' XX}
`XX `XXL mXXF {XX XX} 7XXm JXX' XX'
XX 7XXXF `XX XX' 7XXXF XX
XX. JXXXX. 7X. .XF .XXXXL .XX
{XXL 7XF7XXX. {XX XX} .XXXF7XF JXX}
`XXX' `XXXm mXXX' `XXX'
^^^^^ ^^^^^
.mJXXL .JXXXXXXXXL JXXXXXXXXL. JXXLm.
mXXXXmXXXL .XXXXXXXXXXX} {XXXXXXXXXXX. JXXXmXXXXm
7XXXXXXXXX} .JXXXXXXXXXXXXX. .XXXXXXXXXXXXXL. {XXXXXXXXXF
.XXXXXX'.JXXXXXXXXXXXXXXXXL JXXXXXXXXXXXXXXXXL.`XXXXXX.
.XXXXXXXmXXXXXXXXXXXXXXXXXXXL JXXXXXXXXXXXXXXXXXXXmXXXXXXX.
{XXXXXXXXXXXXXXXXXXXXXXXXXXXXX. .XXXXXXXXXXXXXXXXXXXXXXXXXXXXX}
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX. .XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
7XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXF
7XXXXXXXXXXXXXXXXXXXXXXXXXF`XX XX'7XXXXXXXXXXXXXXXXXXXXXXXXXF
`7XXXXXXXXXXXXXXXXXXX7XXX} XX XX {XXXFXXXXXXXXXXXXXXXXXXXF'
`' XXXXX^XXXXX7XXXF`XXX}{X' `X}{XXX'7XXXFXXXXX^XXXXX `'
7XXXF XXXXX`XXX} `XXX`' `'XXX' {XXX'XXXXX 7XXXF
{XXX'{XXXX} 7XX} {XX. .XX} {XXF {XXXX}`XXX}
{XXF {XXF' JXX' XX} {XX `XXL `7XX} 7XX}
XX} 7XXm JXX' XX' `XX `XXL mXXF {XX
XX' 7XXXF XX XX 7XXXF `XX
.XF .XXXXL .XX XX. JXXXX. 7X.
XX} .XXXF7XF JXX} {XXL 7XF7XXX. {XX
mXXX' `XXX' `XXX' `XXXm
^^^^^ ^^^^^
The use of a camel image in association with Perl is a trademark of O'Reilly &
Associates, Inc. Used with permission.
(Văn bản bản quyền là tùy chọn.)
Một ví dụ đơn giản hơn sẽ lấy đầu vào:
#######
#
#
######
#
# #
#####
và sản xuất:
##### #####
# # # #
# #
###### ######
# #
# #
####### #######
####### #######
# #
# #
###### ######
# #
# # # #
##### #####
Các mục nên thể hiện nghệ thuật.
Đây là một cuộc thi phổ biến, vì vậy, mục có số phiếu (tối đa) tối đa sẽ thắng!