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<html><head><title>Index: O (CGI Programming with Perl)</title></head><body bgcolor="#FFFFFF" text="#000000"><!-- START OF BODY --><!-- TOP BANNER --><p><img src="../gifs/smbanns.gif" usemap="#banner-map" border=0 alt="Book Home" ></a></p><map name="banner-map"><area alt="CGI Programming with Perl" href="../index.htm" coords="0,0,466,65" shape="rect" /><area alt="Search this book" href="../jobjects/fsearch.htm" coords="467,0,514,18" shape="rect" /></map></map><!-- TOP INDEX LINKS --><p><font size="-1"><a href="idx_0.htm">Symbols</a>| <a href="idx_a.htm">A</a>| <a href="idx_b.htm">B</a>| <a href="idx_c.htm">C</a>| <a href="idx_d.htm">D</a>| <a href="idx_e.htm">E</a>| <a href="idx_f.htm">F</a>| <a href="idx_g.htm">G</a>| <a href="idx_h.htm">H</a>| <a href="idx_i.htm">I</a>| <a href="idx_j.htm">J</a>| <a href="idx_k.htm">K</a>| <a href="idx_l.htm">L</a>| <a href="idx_m.htm">M</a>| <a href="idx_n.htm">N</a>| <a href="idx_o.htm">O</a>| <a href="idx_p.htm">P</a>| <a href="idx_q.htm">Q</a>| <a href="idx_r.htm">R</a>| <a href="idx_s.htm">S</a>| <a href="idx_t.htm">T</a>| <a href="idx_u.htm">U</a>| <a href="idx_v.htm">V</a>| <a href="idx_w.htm">W</a>| <a href="idx_x.htm">X</a>| <a href="idx_y.htm">Y</a>| <a href="idx_z.htm">Z</a></FONT><!-- INDEX SECTION BODY --><H1>Index: O</H1><DL><a name="object-oriented-syntax-CGI.pm-module"><dt>object-oriented syntax, CGI.pm module: <a href="../ch05_01.htm#INDEX-948">5.1.3. Standard and Object-Oriented Syntax</a></dt><a name="objects"><dt>objects</dt><dd><dl> <a name="CGI"> <dt>CGI</dt><dd><dl> <a name="HTTP-headers-printing-in-error-handling"> <dt>HTTP headers, printing in error handling: <a href="../ch05_05.htm#INDEX-1204">5.5.3. Error Subroutines</a></dt> </dl></dd> <a name="CGI.pm"> <dt>CGI.pm</dt><dd><dl> <a name="error-messages-for"> <dt>error messages for: <a href="../ch05_02.htm#INDEX-1040">5.2.4. File Uploads with CGI.pm</a></dt> <a name="$q-prefix"> <dt>$q prefix: <a href="../ch05_01.htm#INDEX-950">5.1.3. Standard and Object-Oriented Syntax</a></dt> </dl></dd> <a name="Document-Object-Model-defining-for-HTML-and-XML-documents"> <dt>Document Object Model, defining for HTML and XML documents: <a href="../ch07_01.htm#INDEX-1508">7.1.1. History</a></dt> <a name="HTML-:-:Template-importing-parameters-from-CGI.pm"> <dt>HTML::Template, importing parameters from CGI.pm: <a href="../ch06_03.htm#INDEX-1357">6.3.1. Syntax</a></dt> <a name="Perl-DBM-files-storing-as"> <dt>Perl, DBM files, storing as: <a href="../ch10_02.htm#INDEX-2046">10.2.2. MLDBM</a></dt> <a name="WDDX-interpreting-with-JavaScript"> <dt>WDDX, interpreting with JavaScript: <a href="../ch07_03.htm#INDEX-1601">7.3.2. Example</a></dt> </dl></dd><a name="onChange-handler-JavaScript"><dt>onChange handler (JavaScript)</dt><dd><dl> <a name="assigning-multiple-statements-to"> <dt>assigning multiple statements to: <a href="../ch07_02.htm#INDEX-1530">7.2.1.1. Validating elements</a></dt> <a name="filed-validation-functions-calling"> <dt>filed validation functions, calling: <a href="../ch07_02.htm#INDEX-1549">7.2.1.3. Validation example</a></dt> <a name="validating-HTML-form-elements"> <dt>validating HTML form elements: <a href="../ch07_02.htm#INDEX-1521">7.2.1.1. Validating elements</a></dt> </dl></dd><a name="onCheck-attribute"><dt>onCheck attribute: <a href="../ch04_02.htm#INDEX-819">4.2.3.4. Checkboxes</a></dt><a name="onClick-attribute"><dt>onClick attribute</dt><dd><dl> <a name="image-buttons"> <dt>image buttons: <a href="../ch04_02.htm#INDEX-847">4.2.3.8. Image buttons</a></dt> <a name="plain-buttons"> <dt>plain buttons: <a href="../ch04_02.htm#INDEX-855">4.2.3.9. Plain buttons</a></dt> <a name="reset-buttons"> <dt>reset buttons: <a href="../ch04_02.htm#INDEX-839">4.2.3.7. Reset buttons</a></dt> <a name="submit-buttons"> <dt>submit buttons: <a href="../ch04_02.htm#INDEX-831">4.2.3.6. Submit buttons</a></dt> </dl></dd><a name="onFocus-onBlur-and-onChange-attributes"><dt>onFocus, onBlur, and onChange attributes: <a href="../ch04_02.htm#INDEX-800">4.2.3.1. Text fields</a></dt><a name="online-software-store-example"><dt>online software store (example): <a href="../ch08_02.htm#INDEX-1685">8.2.5. Trusting the Browser</a></dt><a name="onSubmit-handler-JavaScript"><dt>onSubmit handler (JavaScript): <a href="../ch04_02.htm#INDEX-784">4.2.2. The <FORM> Tag</a></dt><dd><dl> <dt><a href="../ch04_02.htm#INDEX-828">4.2.3.6. Submit buttons</a></dt> <dt><a href="../ch07_02.htm#INDEX-1534">7.2.1.2. Validating submits</a></dt> <dt><a href="../ch07_03.htm#INDEX-1596">7.3.2. Example</a></dt></dl></dd><a name="open-function"><dt>open function: <a href="../ch15_02.htm#INDEX-2939">15.2.3. Is It Open?</a></dt><dd><dl> <a name="PID-of-child-process-checking"> <dt>PID of child process, checking: <a href="../ch15_02.htm#INDEX-2946">15.2.3. Is It Open?</a></dt> <a name="special-instigating-fork"> <dt>special, instigating fork: <a href="../ch08_02.htm#INDEX-1671">8.2.4. fork and exec</a></dt> </dl></dd><a name="open-source-modules-for-Perl-on-CPAN"><dt>open source modules for Perl on CPAN: <a href="../ch01_03.htm#INDEX-81">1.3.1. Why Perl?</a></dt><a name="open-system-command"><dt>open system command: <a href="../ch15_02.htm#INDEX-2936">15.2.2. Check Status of System Calls</a></dt><a name="opening-and-closing-tags"><dt>opening and closing tags: <a href="../ch14_02.htm#INDEX-2734">14.2. An Introduction to XML</a></dt><dd><dl> <dt>(see also <a href="idx_c.htm#closing-tags">closing tags</a>)</dt> <a name="HTML-:-:Template-commands"> <dt>HTML::Template commands: <a href="../ch06_03.htm#INDEX-1360">6.3.1. Syntax</a></dt> <a name="XML-use-in"> <dt>XML, use in: <a href="../ch14_02.htm#INDEX-2733">14.2. An Introduction to XML</a></dt> </dl></dd><a name="opening-uploaded-files-limiting-attempts"><dt>opening uploaded files, limiting attempts: <a href="../ch05_02.htm#INDEX-1055">5.2.4. File Uploads with CGI.pm</a></dt><a name="operating-systems"><dt>operating systems</dt><dd><dl> <a name="binary-and-text-files-distinguishing"> <dt>binary and text files, distinguishing: <a href="../ch15_02.htm#INDEX-2968">15.2.7. Use binmode</a></dt> <a name="binmode-function-support-for"> <dt>binmode function, support for: <a href="../ch13_02.htm#INDEX-2502">13.2.1.1. binmode</a></dt> <a name="CGI-scripts-differences-in-handling-of"> <dt>CGI scripts, differences in handling of: <a href="../ch01_02.htm#INDEX-69">1.2.2. Invoking CGI Scripts</a></dt> <a name="ColdFusion-language-use-on"> <dt>ColdFusion language, use on: <a href="../ch01_03.htm#INDEX-110">1.3.2. Alternatives to CGI</a></dt> <a name="end-of-file-character-using"> <dt>end-of-file character, using: <a href="../ch15_03.htm#INDEX-2997">15.3.3. Running Scripts from the Command Line</a></dt> <a name="file-names-variations-in"> <dt>file names, variations in: <a href="../ch05_02.htm#INDEX-1021">5.2.4. File Uploads with CGI.pm</a></dt> <a name="forward-slashes---separating-directories"> <dt>forward slashes (/) separating directories: <a href="../ch12_03.htm#INDEX-2429">12.3.1. Search Application</a></dt> <a name="gcc-compiler-obtaining-pre-built-binary-of"> <dt>gcc compiler, obtaining pre-built binary of: <a href="../appb_01.htm#INDEX-3349">B.1.1. Installing Modules</a></dt> <a name="line-endings"> <dt>line endings</dt><dd><dl> <a name="CGI-scripts-not-matching"> <dt>CGI scripts, not matching: <a href="../ch15_01.htm#INDEX-2887">15.1.3. Line Endings</a></dt> <a name="end-of-line-characters-translating-to-----n"> <dt>end-of-line characters, translating to \\\\n: <a href="../ch05_02.htm#INDEX-1056">5.2.4. File Uploads with CGI.pm</a></dt> <a name="News-module-exampledifferences-in"> <dt>News module (example)differences in: <a href="../ch03_03.htm#INDEX-577">3.3.1.1. Outputting documents</a></dt> </dl></dd> <a name="not-using-newlines-calling-binmode-for"> <dt>not using newlines, calling binmode for: <a href="../ch03_04.htm#INDEX-700">3.4.1. Check the Client Browser</a></dt> <a name="Perl"> <dt>Perl</dt><dd><dl> <a name="allowing-to-fork">⌨️ 快捷键说明
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