klarkxy/hustoj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
9b13c95e8a4889474d797b7c1d82b6045d766425
hustoj/web/cppreference-zh/chmhelp/cpp-filesystem-path-replace_extension.html
klarkxy 196e706fe4 上传cppreference
2025-08-01 12:57:54 +08:00

120 lines
7.2 KiB
HTML
Raw Blame History

<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
<head><meta http-equiv="x-ua-compatible" content="ie=edge">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>std::filesystem::path::replace_extension</title>
<link rel="stylesheet" href="ext.css" />
<link rel="stylesheet" href="site_modules.css" />
</head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_filesystem_path_replace_extension skin-cppreference2 action-view cpp-navbar">
<div id="cpp-content-base">
<div id="content"><a id="top"></a>
<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::filesystem::path::</span>replace_extension</h1>
<div id="bodyContent">
<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-filesystem.html">filesystem</a>&lrm; | <a href="cpp-filesystem-path.html">path</a></span></div>
<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
<table class="t-dcl-begin">
<tbody>
<tr class="t-dcl t-since-cxx17">
<td>
<div><span class="mw-geshi cpp source-cpp">path<span class="sy3">&amp;</span> replace_extension<span class="br0">(</span> <span class="kw4">const</span> path<span class="sy3">&amp;</span> replacement <span class="sy1">=</span> path<span class="br0">(</span><span class="br0">)</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
</tr>
<tr class="t-dcl-sep">
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>&#20197; <code>replacement</code> &#26367;&#25442;&#25193;&#23637;&#21517;&#65292;&#25110;&#22312;&#20351;&#29992; <code>replacement</code> &#30340;&#40664;&#35748;&#20540;&#26102;&#31227;&#38500;&#23427;&#12290;</p>
<p>&#39318;&#20808;&#65292;&#33509;&#27492;&#36335;&#24452;&#25317;&#26377; <a href="cpp-filesystem-path-extension.html"><tt>extension()</tt></a> &#65292;&#21017;&#39318;&#20808;&#20174;&#36335;&#24452;&#21517;&#30340;&#36890;&#29992;&#26684;&#24335;&#35270;&#35282;&#31227;&#38500;&#23427;&#12290;</p>
<p>&#28982;&#21518;&#33509; <code>replacement</code> &#38750;&#31354;&#19988;&#19981;&#20197;&#28857;&#23383;&#31526;&#24320;&#22987;&#65292;&#21017;&#28155;&#21152;&#28857;&#23383;&#31526;&#21040;&#36335;&#24452;&#21517;&#30340;&#36890;&#29992;&#26684;&#24335;&#35270;&#22270;&#12290;</p>
<p>&#28982;&#21518;&#22914;&#21516;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span>replacement<span class="br0">)</span></span></span> &#21518;&#38468; <code>replacement</code> &#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td>replacement</td>
<td>-</td>
<td>&#35201;&#26367;&#25442;&#30340;&#25193;&#23637;&#21517;</td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></p>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<p>&#21487;&#33021;&#25243;&#20986;&#23454;&#29616;&#23450;&#20041;&#30340;&#24322;&#24120;&#12290;</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">&#27880;&#35299;</span></h3>
<p><code>replacement</code> &#30340;&#31867;&#22411;&#26159; <code>std::filesystem::path</code> &#65292;&#21363;&#20351;&#24182;&#38750;&#26377;&#24847;&#29992;&#23427;&#34920;&#31034;&#25991;&#20214;&#31995;&#32479;&#19978;&#30340;&#23545;&#35937;&#65292;&#36825;&#26159;&#20026;&#20102;&#27491;&#30830;&#35748;&#23450;&#25991;&#20214;&#31995;&#32479;&#23383;&#31526;&#32534;&#30721;&#12290;</p>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
<div class="t-example">
<div class="t-example-live-link"></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;filesystem&gt;</span>
<span class="kw1">namespace</span> fs <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">filesystem</span><span class="sy4">;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
fs<span class="sy4">::</span><span class="me2">path</span> p <span class="sy1">=</span> <span class="st0">&quot;/foo/bar.jpeg&quot;</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Was: &quot;</span> <span class="sy1">&lt;&lt;</span> p <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
p.<span class="me1">replace_extension</span><span class="br0">(</span><span class="st0">&quot;.jpg&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Now: &quot;</span> <span class="sy1">&lt;&lt;</span> p <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<p>&#36755;&#20986;&#65306;</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="text source-text">
<pre class="de1">Was: &quot;/foo/bar.jpeg&quot;
Now: &quot;/foo/bar.jpg&quot;</pre></div>
</div>
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-filesystem-path-extension.html"><span class="t-lines"><span>extension</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#25991;&#20214;&#25193;&#23637;&#21517;&#36335;&#24452;&#32452;&#20998;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-filesystem-path-filename.html"><span class="t-lines"><span>filename</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#25991;&#20214;&#21517;&#36335;&#24452;&#32452;&#20998;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-filesystem-path-stem.html"><span class="t-lines"><span>stem</span></span></a></div>
</div>
</td>
<td>&#36820;&#22238;&#20027;&#24178;&#36335;&#24452;&#32452;&#20998;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-filesystem-path-has_path.html"><span class="t-lines"><span>has_extension</span></span></a></div>
</div>
</td>
<td>&#26816;&#26597;&#23545;&#24212;&#36335;&#24452;&#20803;&#32032;&#26159;&#21542;&#38750;&#31354;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
</tr>
</table>
</div>
<div class="visualClear"></div>
</div>
</div>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink