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来自「by Randal L. Schwartz and Tom Phoenix I」· HTM 代码 · 共 58 行
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<html><head><title>Other Operators and Functions (Learning Perl, 3rd Edition)</title><link rel="stylesheet" type="text/css" href="../style/style1.css" /><meta name="DC.Creator" content="Randal L. Schwartz and Tom Phoenix" /><meta name="DC.Format" content="text/xml" scheme="MIME" /><meta name="DC.Language" content="en-US" /><meta name="DC.Publisher" content="O'Reilly & Associates, Inc." /><meta name="DC.Source" scheme="ISBN" content="0596001320L" /><meta name="DC.Subject.Keyword" content="stuff" /><meta name="DC.Title" content="Learning Perl, 3rd Edition" /><meta name="DC.Type" content="Text.Monograph" /></head><body bgcolor="#ffffff"><img alt="Book Home" border="0" src="gifs/smbanner.gif" usemap="#banner-map" /><map name="banner-map"><area shape="rect" coords="1,-2,616,66" href="index.htm" alt="Learning Perl, 3rd Edition" /><area shape="rect" coords="629,-11,726,25" href="jobjects/fsearch.htm" alt="Search this book" /></map><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="appb_07.htm"><img alt="Previous" border="0" src="../gifs/txtpreva.gif" /></a></td><td align="center" valign="top" width="228"><a href="index.htm"></a></td><td align="right" valign="top" width="228"><a href="appb_09.htm"><img alt="Next" border="0" src="../gifs/txtnexta.gif" /></a></td></tr></table></div><h2 class="sect1">B.8. Other Operators and Functions</h2><p>Yes, there are more operators and functions than we can fit here,from the scalar <tt class="literal">..</tt> operator to the scalar<tt class="literal">,</tt> operator, from <tt class="literal">wantarray</tt> to<tt class="literal">goto</tt>(!), from <tt class="literal">caller</tt> to<tt class="literal">chr</tt>. See the<em class="emphasis">perlop</em><a name="INDEX-1213" /><a name="INDEX-1214" /> and<em class="emphasis">perlfunc</em><a name="INDEX-1215" /><a name="INDEX-1216" /> manpages.</p><a name="lperl3-APP-B-SECT-8.1" /><div class="sect2"><h3 class="sect2">B.8.1. Transliteration with tr///</h3><p>The <tt class="literal">tr///</tt><a name="INDEX-1217" /><a name="INDEX-1218" /> operator looks like aregular expression, but it's really for transliterating onegroup of characters into another. It can also efficiently countselected characters. See the <em class="emphasis">perlop</em> manpage.</p></div><a name="lperl3-APP-B-SECT-8.2" /><div class="sect2"><h3 class="sect2">B.8.2. Here documents</h3><p><a name="INDEX-1219" />Heredocuments are a useful form of <a name="INDEX-1220" /><a name="INDEX-1221" />multiline string quoting; see the<em class="emphasis">perldata</em><a name="INDEX-1222" /> manpage.</p></div><hr width="684" align="left" /><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="appb_07.htm"><img alt="Previous" border="0" src="../gifs/txtpreva.gif" /></a></td><td align="center" valign="top" width="228"><a href="index.htm"><img alt="Home" border="0" src="../gifs/txthome.gif" /></a></td><td align="right" valign="top" width="228"><a href="appb_09.htm"><img alt="Next" border="0" src="../gifs/txtnexta.gif" /></a></td></tr><tr><td align="left" valign="top" width="228">B.7. Databases</td><td align="center" valign="top" width="228"><a href="index/index.htm"><img alt="Book Index" border="0" src="../gifs/index.gif" /></a></td><td align="right" valign="top" width="228">B.9. Mathematics</td></tr></table></div><hr width="684" align="left" /><img alt="Library Navigation Links" border="0" src="../gifs/navbar.gif" usemap="#library-map" /><p><p><font size="-1"><a href="copyrght.htm">Copyright © 2002</a> O'Reilly & Associates. All rights reserved.</font></p><map name="library-map"><area shape="rect" coords="1,0,85,94" href="../index.htm"><area shape="rect" coords="86,1,178,103" href="../lwp/index.htm"><area shape="rect" coords="180,0,265,103" href="../lperl/index.htm"><area shape="rect" coords="267,0,353,105" href="../perlnut/index.htm"><area shape="rect" coords="354,1,446,115" href="../prog/index.htm"><area shape="rect" coords="448,0,526,132" href="../tk/index.htm"><area shape="rect" coords="528,1,615,119" href="../cookbook/index.htm"><area shape="rect" coords="617,0,690,135" href="../pxml/index.htm"></map></body></html>⌨️ 快捷键说明
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