通过
perlsub和
perlop联机帮助页,我注意到有很多“魔术”和“魔术”的引用(只需搜索“魔术”).我不知道为什么Perl如此丰富.
一些例子：
print ++($foo = 'zz') # prints 'aaa'
printf "%d: %s",$! = 1,$! # prints '1: Operation not permitted'
while (my $line = <FH>) { ... } # $line is tested for definedness,not truth
use warnings; print "0 but true" + 1 # "0 but true" is a valid number!
解决方法
当Perl功能被描述为“魔术”时：
It means that that feature is
implemented by NBA star Magic Johnson.
Whenever Perl executes “magic”,it is
actually sending an RPC call to a
remote receiver implanted in Magic
himself. He computes the answer,and
then sends a return message. The use
of Mr. Johnson for all the hard parts
of Perl provides a great abstraction
layer and simplifies porting to new
platforms. It’s way easier than,say,
the Apache Portable Runtime.
资料来源：perrin on Perl Monks
这是官方的！ Perl更神奇
从以下Google搜索点击：
25 site:ruby-doc.org magic 36 site:docs.python.org magic 497 site:perldoc.perl.org magic