blocks|key|1084818|text|这是到目前为止我最喜欢的特性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1084819|use+5.012;+#+enables+'use+strict'+implicitly!|code-block|syntax|javascript|1084820|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is my favourite feature by far:

<pre><code>use 5.012; # enables 'use strict' implicitly!
</code></pre>

blocks|key|1080970|text|原始数据：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1080971|The+full+list+of+changes+|offset|length|1080972|Incompatibility+changes|unordered-list-item|1080973|
的|1080974|1080975|1080976|有趣的是：|1080977|现在，|1080978|Regexps+are+now+first+class|1080979|Pluggable+keywords|1080980|New+syntax+allows+developers+to+specify+package+version+numbers+directly+in+"package"+statements|1080981|Perl会就default.|style|BOLD|1080982|使用的弃用功能向用户发出警告|1080983|太棒了：|1080984|不确定是否有新信息，但perlperf+-+Perl+Performance+and+Optimization+Techniques已添加到文档中！|1080985|有用的：|1080986|support!|1080987|\N正则表达式escape|CODE|1080988|
|1080989|...+(aka+Yada+Yada)+operator|1080990|1080991|Y2038+Compliance+-+Perl+now+has+a+better+sense+of+time+and+will+be+able+to+keep+accurate+time+well+past+the+"Y2038"+barrier.|1080992|
+|1080993|DTRACE+(some)|1080994|1080995|entityMap|0|LINK|mutability|MUTABLE|url|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod|1|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#Potentially_Incompatible_Changes|2|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#___top|3|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#Pluggable_keywords|4|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#New_package_NAME_VERSION_syntax|5|http://search.cpan.org/~jesse/perl-5.12.0/pod/perlperf.pod|6|http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#The_..._operator|7^0|0|4|K|0|0|0|N|1|0|0|0|0|0|0|0|R|2|0|0|I|3|0|0|2O|4|0|0|E|0|0|0|B|1J|5|0|0|0|0|2|0|0|0|3|0|S|6|0|0|0|3G|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|2A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|2B|8|@]|9|@$D|2C|E|2D|1|2E]]|A|$]]|$1|F|3|G|5|H|7|2F|8|@]|9|@$D|2G|E|2H|1|2I]]|A|$]]|$1|I|3|J|5|6|7|2J|8|@]|9|@]|A|$]]|$1|K|3|-4|5|H|7|2K|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|2L|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|2M|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|2N|8|@]|9|@]|A|$]]|$1|Q|3|R|5|H|7|2O|8|@]|9|@$D|2P|E|2Q|1|2R]]|A|$]]|$1|S|3|T|5|H|7|2S|8|@]|9|@$D|2T|E|2U|1|2V]]|A|$]]|$1|U|3|V|5|H|7|2W|8|@]|9|@$D|2X|E|2Y|1|2Z]]|A|$]]|$1|W|3|X|5|H|7|30|8|@$D|31|E|32|Y|Z]]|9|@]|A|$]]|$1|10|3|11|5|6|7|33|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|34|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|35|8|@]|9|@$D|36|E|37|1|38]]|A|$]]|$1|16|3|17|5|6|7|39|8|@]|9|@]|A|$]]|$1|18|3|19|5|6|7|3A|8|@]|9|@]|A|$]]|$1|1A|3|1B|5|H|7|3B|8|@$D|3C|E|3D|Y|1C]]|9|@]|A|$]]|$1|1D|3|1E|5|6|7|3E|8|@]|9|@]|A|$]]|$1|1F|3|1G|5|H|7|3F|8|@$D|3G|E|3H|Y|1C]]|9|@$D|3I|E|3J|1|3K]]|A|$]]|$1|1H|3|1E|5|6|7|3L|8|@]|9|@]|A|$]]|$1|1I|3|1J|5|H|7|3M|8|@]|9|@$D|3N|E|3O|1|3P]]|A|$]]|$1|1K|3|1L|5|6|7|3Q|8|@]|9|@]|A|$]]|$1|1M|3|1N|5|H|7|3R|8|@]|9|@]|A|$]]|$1|1O|3|-4|5|6|7|3S|8|@]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|3T|8|@]|9|@]|A|$]]]|1Q|$1R|$5|1S|1T|1U|A|$1V|1W]]|1X|$5|1S|1T|1U|A|$1V|1Y]]|1Z|$5|1S|1T|1U|A|$1V|20]]|21|$5|1S|1T|1U|A|$1V|22]]|23|$5|1S|1T|1U|A|$1V|24]]|25|$5|1S|1T|1U|A|$1V|26]]|27|$5|1S|1T|1U|A|$1V|28]]|29|$5|1S|1T|1U|A|$1V|20]]]]

Raw data:

<ul>
<li>The <a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod" rel="noreferrer">full list of changes</a> </li>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#Potentially_Incompatible_Changes" rel="noreferrer">Incompatibility changes</a></li>
</ul>

Interesting:

<ul>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#___top" rel="noreferrer">Regexps are now first class</a></li>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#Pluggable_keywords" rel="noreferrer">Pluggable keywords</a></li>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#New_package_NAME_VERSION_syntax" rel="noreferrer">New syntax allows developers to specify package version numbers directly in "package" statements</a></li>
<li>Perl now warns the user about the use of deprecated features by default.</li>
</ul>

Wonderful:

Not sure if any of the info is new, but <a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perlperf.pod" rel="noreferrer">perlperf - Perl Performance and Optimization Techniques</a> was added to documentation!!!

Useful:

<ul>
<li>DTRACE (some) support!</li>
<li><code>\N</code> regex escape</li>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#The_..._operator" rel="noreferrer"><code>...</code> (aka Yada Yada) operator</a></li>
<li><a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perl5120delta.pod#___top" rel="noreferrer">Y2038 Compliance - Perl now has a better sense of time and will be able to keep accurate time well past the "Y2038" barrier.</a></li>
</ul>

blocks|key|1634029|text|我喜欢Yada+Yada的想法，尽管时间会证明它是否真的有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1634030|entityMap|0|LINK|mutability|MUTABLE|url|http://search.cpan.org/~jesse/perl-5.12.0/pod/perlop.pod#Yada_Yada_Operator___^0|3|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I like the idea of <a href="http://search.cpan.org/~jesse/perl-5.12.0/pod/perlop.pod#Yada_Yada_Operator___" rel="nofollow noreferrer">Yada Yada</a>, although time will tell if it is actually useful.

blocks|key|1081026|text|有一些微妙但不平凡的改进将使可移植(闪存驱动器)+Perl发行版工作得更好(或者根本不会)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1081027|Perl现在也支持Windows上的64位，有了GCC，所以草莓Perl+64位应该很快就会出来。|1081028|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

There's some subtle but non-trivial improvements that will make Portable (flash drive) Perl distributions work better (or at all).

Perl also now has support for 64-bit on Windows with GCC, so Strawberry Perl 64-bit should come out soon.

I remember quickly adopting <code>given .. when</code>, <code>say</code>, <code>//</code>, and the smart matching operator when Perl 5.10 came around. 

What do you consider the most useful fixes and features introduced with Perl 5.12.0?

What are the most interesting/useful new things in Perl 5.12?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我记得当Perl5.10出现时，我很快采用了given .. when、say、//和智能匹配操作符。您认为Perl 5.12.0引入的最有用的修复和特性是什么？

问Perl 5.12中最有趣/最有用的新特性是什么？
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回答 4

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