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字符串库
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string.split(s, sep)
</span>
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<span class="md-ellipsis">
string.join(arr, sep)
</span>
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大小写转换
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string.upper(s)
</span>
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<span class="md-ellipsis">
string.lower(s)
</span>
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string.capitalize(s)
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字符串长度与提取
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string.length(s)
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string.substring(s, start, end)
</span>
</a>
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string.charAt(s, index)
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字符串查找
</span>
</a>
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<a href="#stringindexofs-substr" class="md-nav__link">
<span class="md-ellipsis">
string.indexOf(s, substr)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringlastindexofs-substr" class="md-nav__link">
<span class="md-ellipsis">
string.lastIndexOf(s, substr)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringincludess-substr" class="md-nav__link">
<span class="md-ellipsis">
string.includes(s, substr)
</span>
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字符串替换
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string.replace(s, old, new)
</span>
</a>
</li>
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<a href="#stringreplacealls-old-new" class="md-nav__link">
<span class="md-ellipsis">
string.replaceAll(s, old, new)
</span>
</a>
</li>
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字符串修剪
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<a href="#stringtrims" class="md-nav__link">
<span class="md-ellipsis">
string.trim(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringtrimstarts" class="md-nav__link">
<span class="md-ellipsis">
string.trimStart(s)
</span>
</a>
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<a href="#stringtrimends" class="md-nav__link">
<span class="md-ellipsis">
string.trimEnd(s)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_11" class="md-nav__link">
<span class="md-ellipsis">
字符串检查
</span>
</a>
<nav class="md-nav" aria-label="字符串检查">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringstartswiths-prefix" class="md-nav__link">
<span class="md-ellipsis">
string.startsWith(s, prefix)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringendswiths-suffix" class="md-nav__link">
<span class="md-ellipsis">
string.endsWith(s, suffix)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_12" class="md-nav__link">
<span class="md-ellipsis">
字符串重复
</span>
</a>
<nav class="md-nav" aria-label="字符串重复">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringrepeats-count" class="md-nav__link">
<span class="md-ellipsis">
string.repeat(s, count)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_13" class="md-nav__link">
<span class="md-ellipsis">
字符串反转
</span>
</a>
<nav class="md-nav" aria-label="字符串反转">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringreverses" class="md-nav__link">
<span class="md-ellipsis">
string.reverse(s)
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_14" class="md-nav__link">
<span class="md-ellipsis">
示例代码
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#_15" class="md-nav__link">
<span class="md-ellipsis">
注意事项
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../array/" class="md-nav__link">
<span class="md-ellipsis">
数组库
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../util/" class="md-nav__link">
<span class="md-ellipsis">
工具库
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--secondary" aria-label="目录">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
目录
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#_2" class="md-nav__link">
<span class="md-ellipsis">
简介
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#_3" class="md-nav__link">
<span class="md-ellipsis">
导入方式
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#_4" class="md-nav__link">
<span class="md-ellipsis">
函数参考
</span>
</a>
<nav class="md-nav" aria-label="函数参考">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#_5" class="md-nav__link">
<span class="md-ellipsis">
字符串分割与连接
</span>
</a>
<nav class="md-nav" aria-label="字符串分割与连接">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringsplits-sep" class="md-nav__link">
<span class="md-ellipsis">
string.split(s, sep)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringjoinarr-sep" class="md-nav__link">
<span class="md-ellipsis">
string.join(arr, sep)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_6" class="md-nav__link">
<span class="md-ellipsis">
大小写转换
</span>
</a>
<nav class="md-nav" aria-label="大小写转换">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringuppers" class="md-nav__link">
<span class="md-ellipsis">
string.upper(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringlowers" class="md-nav__link">
<span class="md-ellipsis">
string.lower(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringcapitalizes" class="md-nav__link">
<span class="md-ellipsis">
string.capitalize(s)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_7" class="md-nav__link">
<span class="md-ellipsis">
字符串长度与提取
</span>
</a>
<nav class="md-nav" aria-label="字符串长度与提取">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringlengths" class="md-nav__link">
<span class="md-ellipsis">
string.length(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringsubstrings-start-end" class="md-nav__link">
<span class="md-ellipsis">
string.substring(s, start, end)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringcharats-index" class="md-nav__link">
<span class="md-ellipsis">
string.charAt(s, index)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_8" class="md-nav__link">
<span class="md-ellipsis">
字符串查找
</span>
</a>
<nav class="md-nav" aria-label="字符串查找">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringindexofs-substr" class="md-nav__link">
<span class="md-ellipsis">
string.indexOf(s, substr)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringlastindexofs-substr" class="md-nav__link">
<span class="md-ellipsis">
string.lastIndexOf(s, substr)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringincludess-substr" class="md-nav__link">
<span class="md-ellipsis">
string.includes(s, substr)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_9" class="md-nav__link">
<span class="md-ellipsis">
字符串替换
</span>
</a>
<nav class="md-nav" aria-label="字符串替换">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringreplaces-old-new" class="md-nav__link">
<span class="md-ellipsis">
string.replace(s, old, new)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringreplacealls-old-new" class="md-nav__link">
<span class="md-ellipsis">
string.replaceAll(s, old, new)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_10" class="md-nav__link">
<span class="md-ellipsis">
字符串修剪
</span>
</a>
<nav class="md-nav" aria-label="字符串修剪">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringtrims" class="md-nav__link">
<span class="md-ellipsis">
string.trim(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringtrimstarts" class="md-nav__link">
<span class="md-ellipsis">
string.trimStart(s)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringtrimends" class="md-nav__link">
<span class="md-ellipsis">
string.trimEnd(s)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_11" class="md-nav__link">
<span class="md-ellipsis">
字符串检查
</span>
</a>
<nav class="md-nav" aria-label="字符串检查">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringstartswiths-prefix" class="md-nav__link">
<span class="md-ellipsis">
string.startsWith(s, prefix)
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#stringendswiths-suffix" class="md-nav__link">
<span class="md-ellipsis">
string.endsWith(s, suffix)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_12" class="md-nav__link">
<span class="md-ellipsis">
字符串重复
</span>
</a>
<nav class="md-nav" aria-label="字符串重复">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringrepeats-count" class="md-nav__link">
<span class="md-ellipsis">
string.repeat(s, count)
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_13" class="md-nav__link">
<span class="md-ellipsis">
字符串反转
</span>
</a>
<nav class="md-nav" aria-label="字符串反转">
<ul class="md-nav__list">
<li class="md-nav__item">
<a href="#stringreverses" class="md-nav__link">
<span class="md-ellipsis">
string.reverse(s)
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="#_14" class="md-nav__link">
<span class="md-ellipsis">
示例代码
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#_15" class="md-nav__link">
<span class="md-ellipsis">
注意事项
</span>
</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<h1 id="_1">字符串库<a class="headerlink" href="#_1" title="Permanent link">&para;</a></h1>
<h2 id="_2">简介<a class="headerlink" href="#_2" title="Permanent link">&para;</a></h2>
<p>字符串库（<code>@string</code>）提供了一系列字符串操作函数，包括字符串分割、大小写转换、查找替换等功能。</p>
<h2 id="_3">导入方式<a class="headerlink" href="#_3" title="Permanent link">&para;</a></h2>
<div class="highlight"><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>@string;
</code></pre></div>
<h2 id="_4">函数参考<a class="headerlink" href="#_4" title="Permanent link">&para;</a></h2>
<h3 id="_5">字符串分割与连接<a class="headerlink" href="#_5" title="Permanent link">&para;</a></h3>
<h4 id="stringsplits-sep">string.split(s, sep)<a class="headerlink" href="#stringsplits-sep" title="Permanent link">&para;</a></h4>
<p>分割字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>sep</code> - 分隔符</p>
<p><strong>返回值：</strong>
- 分割后的数组</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>@string;
<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>
<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a>text = `Hello,World,Oraset`;
<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a>result = string.split(text, `,`);
<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a>show(`Split result: `, result); !! 输出: [&quot;Hello&quot;, &quot;World&quot;, &quot;Oraset&quot;]
</code></pre></div>
<h4 id="stringjoinarr-sep">string.join(arr, sep)<a class="headerlink" href="#stringjoinarr-sep" title="Permanent link">&para;</a></h4>
<p>连接数组元素为字符串。</p>
<p><strong>参数：</strong>
- <code>arr</code> - 数组
- <code>sep</code> - 分隔符</p>
<p><strong>返回值：</strong>
- 连接后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a>@string;
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a>
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a>arr = arr(`Hello`, `World`, `Oraset`);
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a>result = string.join(arr, ` `);
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a>show(`Joined result: `, result); !! 输出: Hello World Oraset
</code></pre></div>
<h3 id="_6">大小写转换<a class="headerlink" href="#_6" title="Permanent link">&para;</a></h3>
<h4 id="stringuppers">string.upper(s)<a class="headerlink" href="#stringuppers" title="Permanent link">&para;</a></h4>
<p>转换为大写。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 大写字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a>@string;
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a>
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a>text = `hello world`;
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a>result = string.upper(text);
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a>show(`Upper case: `, result); !! 输出: HELLO WORLD
</code></pre></div>
<h4 id="stringlowers">string.lower(s)<a class="headerlink" href="#stringlowers" title="Permanent link">&para;</a></h4>
<p>转换为小写。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 小写字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a>@string;
<a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a>
<a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a>text = `HELLO WORLD`;
<a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a>result = string.lower(text);
<a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a>show(`Lower case: `, result); !! 输出: hello world
</code></pre></div>
<h4 id="stringcapitalizes">string.capitalize(s)<a class="headerlink" href="#stringcapitalizes" title="Permanent link">&para;</a></h4>
<p>首字母大写。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 首字母大写的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a>@string;
<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a>
<a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a>text = `hello world`;
<a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a>result = string.capitalize(text);
<a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a>show(`Capitalized: `, result); !! 输出: Hello world
</code></pre></div>
<h3 id="_7">字符串长度与提取<a class="headerlink" href="#_7" title="Permanent link">&para;</a></h3>
<h4 id="stringlengths">string.length(s)<a class="headerlink" href="#stringlengths" title="Permanent link">&para;</a></h4>
<p>获取字符串长度。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 字符串长度</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a>@string;
<a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a>
<a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a>result = string.length(text);
<a id="__codelineno-6-5" name="__codelineno-6-5" href="#__codelineno-6-5"></a>show(`Length: `, result); !! 输出: 13
</code></pre></div>
<h4 id="stringsubstrings-start-end">string.substring(s, start, end)<a class="headerlink" href="#stringsubstrings-start-end" title="Permanent link">&para;</a></h4>
<p>提取子字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>start</code> - 起始索引
- <code>end</code> - 结束索引（可选）</p>
<p><strong>返回值：</strong>
- 提取的子字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a>@string;
<a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a>
<a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a>result1 = string.substring(text, 7);
<a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a>result2 = string.substring(text, 0, 5);
<a id="__codelineno-7-6" name="__codelineno-7-6" href="#__codelineno-7-6"></a>show(`Substring from 7: `, result1); !! 输出: Oraset!
<a id="__codelineno-7-7" name="__codelineno-7-7" href="#__codelineno-7-7"></a>show(`Substring from 0 to 5: `, result2); !! 输出: Hello
</code></pre></div>
<h4 id="stringcharats-index">string.charAt(s, index)<a class="headerlink" href="#stringcharats-index" title="Permanent link">&para;</a></h4>
<p>获取指定位置的字符。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>index</code> - 索引</p>
<p><strong>返回值：</strong>
- 指定位置的字符</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a>@string;
<a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a>
<a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a>text = `Hello`;
<a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a>result = string.charAt(text, 0);
<a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a>show(`First character: `, result); !! 输出: H
</code></pre></div>
<h3 id="_8">字符串查找<a class="headerlink" href="#_8" title="Permanent link">&para;</a></h3>
<h4 id="stringindexofs-substr">string.indexOf(s, substr)<a class="headerlink" href="#stringindexofs-substr" title="Permanent link">&para;</a></h4>
<p>查找子字符串的位置。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>substr</code> - 子字符串</p>
<p><strong>返回值：</strong>
- 子字符串的起始位置，未找到返回 -1</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a>@string;
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a>
<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a>result1 = string.indexOf(text, `Oraset`);
<a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a>result2 = string.indexOf(text, `World`);
<a id="__codelineno-9-6" name="__codelineno-9-6" href="#__codelineno-9-6"></a>show(`Index of &#39;Oraset&#39;: `, result1); !! 输出: 7
<a id="__codelineno-9-7" name="__codelineno-9-7" href="#__codelineno-9-7"></a>show(`Index of &#39;World&#39;: `, result2); !! 输出: -1
</code></pre></div>
<h4 id="stringlastindexofs-substr">string.lastIndexOf(s, substr)<a class="headerlink" href="#stringlastindexofs-substr" title="Permanent link">&para;</a></h4>
<p>从末尾开始查找子字符串的位置。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>substr</code> - 子字符串</p>
<p><strong>返回值：</strong>
- 子字符串的起始位置，未找到返回 -1</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a>@string;
<a id="__codelineno-10-2" name="__codelineno-10-2" href="#__codelineno-10-2"></a>
<a id="__codelineno-10-3" name="__codelineno-10-3" href="#__codelineno-10-3"></a>text = `Hello, Oraset, Oraset!`;
<a id="__codelineno-10-4" name="__codelineno-10-4" href="#__codelineno-10-4"></a>result = string.lastIndexOf(text, `Oraset`);
<a id="__codelineno-10-5" name="__codelineno-10-5" href="#__codelineno-10-5"></a>show(`Last index of &#39;Oraset&#39;: `, result); !! 输出: 14
</code></pre></div>
<h4 id="stringincludess-substr">string.includes(s, substr)<a class="headerlink" href="#stringincludess-substr" title="Permanent link">&para;</a></h4>
<p>检查字符串是否包含子字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>substr</code> - 子字符串</p>
<p><strong>返回值：</strong>
- 布尔值，表示是否包含子字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a>@string;
<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a>
<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a>result1 = string.includes(text, `Oraset`);
<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a>result2 = string.includes(text, `World`);
<a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a>show(`Includes &#39;Oraset&#39;: `, result1); !! 输出: true
<a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a>show(`Includes &#39;World&#39;: `, result2); !! 输出: false
</code></pre></div>
<h3 id="_9">字符串替换<a class="headerlink" href="#_9" title="Permanent link">&para;</a></h3>
<h4 id="stringreplaces-old-new">string.replace(s, old, new)<a class="headerlink" href="#stringreplaces-old-new" title="Permanent link">&para;</a></h4>
<p>替换子字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>old</code> - 要替换的子字符串
- <code>new</code> - 替换后的子字符串</p>
<p><strong>返回值：</strong>
- 替换后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a>@string;
<a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a>
<a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a>text = `Hello, World!`;
<a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a>result = string.replace(text, `World`, `Oraset`);
<a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a>show(`Replaced: `, result); !! 输出: Hello, Oraset!
</code></pre></div>
<h4 id="stringreplacealls-old-new">string.replaceAll(s, old, new)<a class="headerlink" href="#stringreplacealls-old-new" title="Permanent link">&para;</a></h4>
<p>替换所有匹配的子字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>old</code> - 要替换的子字符串
- <code>new</code> - 替换后的子字符串</p>
<p><strong>返回值：</strong>
- 替换后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a>@string;
<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a>
<a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a>text = `Hello, World! Hello, World!`;
<a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a>result = string.replaceAll(text, `World`, `Oraset`);
<a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a>show(`Replaced all: `, result); !! 输出: Hello, Oraset! Hello, Oraset!
</code></pre></div>
<h3 id="_10">字符串修剪<a class="headerlink" href="#_10" title="Permanent link">&para;</a></h3>
<h4 id="stringtrims">string.trim(s)<a class="headerlink" href="#stringtrims" title="Permanent link">&para;</a></h4>
<p>移除字符串两端的空白字符。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 修剪后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a>@string;
<a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a>
<a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a>text = ` Hello, Oraset! `;
<a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a>result = string.trim(text);
<a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a>show(`Trimmed: `, result); !! 输出: Hello, Oraset!
</code></pre></div>
<h4 id="stringtrimstarts">string.trimStart(s)<a class="headerlink" href="#stringtrimstarts" title="Permanent link">&para;</a></h4>
<p>移除字符串开头的空白字符。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 修剪后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a>@string;
<a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a>
<a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a>text = ` Hello, Oraset!`;
<a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a>result = string.trimStart(text);
<a id="__codelineno-15-5" name="__codelineno-15-5" href="#__codelineno-15-5"></a>show(`Trimmed start: `, result); !! 输出: Hello, Oraset!
</code></pre></div>
<h4 id="stringtrimends">string.trimEnd(s)<a class="headerlink" href="#stringtrimends" title="Permanent link">&para;</a></h4>
<p>移除字符串末尾的空白字符。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 修剪后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a>@string;
<a id="__codelineno-16-2" name="__codelineno-16-2" href="#__codelineno-16-2"></a>
<a id="__codelineno-16-3" name="__codelineno-16-3" href="#__codelineno-16-3"></a>text = `Hello, Oraset! `;
<a id="__codelineno-16-4" name="__codelineno-16-4" href="#__codelineno-16-4"></a>result = string.trimEnd(text);
<a id="__codelineno-16-5" name="__codelineno-16-5" href="#__codelineno-16-5"></a>show(`Trimmed end: `, result); !! 输出: Hello, Oraset!
</code></pre></div>
<h3 id="_11">字符串检查<a class="headerlink" href="#_11" title="Permanent link">&para;</a></h3>
<h4 id="stringstartswiths-prefix">string.startsWith(s, prefix)<a class="headerlink" href="#stringstartswiths-prefix" title="Permanent link">&para;</a></h4>
<p>检查字符串是否以指定前缀开头。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>prefix</code> - 前缀</p>
<p><strong>返回值：</strong>
- 布尔值，表示是否以指定前缀开头</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a>@string;
<a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a>
<a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a>result1 = string.startsWith(text, `Hello`);
<a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a>result2 = string.startsWith(text, `World`);
<a id="__codelineno-17-6" name="__codelineno-17-6" href="#__codelineno-17-6"></a>show(`Starts with &#39;Hello&#39;: `, result1); !! 输出: true
<a id="__codelineno-17-7" name="__codelineno-17-7" href="#__codelineno-17-7"></a>show(`Starts with &#39;World&#39;: `, result2); !! 输出: false
</code></pre></div>
<h4 id="stringendswiths-suffix">string.endsWith(s, suffix)<a class="headerlink" href="#stringendswiths-suffix" title="Permanent link">&para;</a></h4>
<p>检查字符串是否以指定后缀结尾。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>suffix</code> - 后缀</p>
<p><strong>返回值：</strong>
- 布尔值，表示是否以指定后缀结尾</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a>@string;
<a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a>
<a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a>text = `Hello, Oraset!`;
<a id="__codelineno-18-4" name="__codelineno-18-4" href="#__codelineno-18-4"></a>result1 = string.endsWith(text, `!`);
<a id="__codelineno-18-5" name="__codelineno-18-5" href="#__codelineno-18-5"></a>result2 = string.endsWith(text, `.`);
<a id="__codelineno-18-6" name="__codelineno-18-6" href="#__codelineno-18-6"></a>show(`Ends with &#39;!&#39;: `, result1); !! 输出: true
<a id="__codelineno-18-7" name="__codelineno-18-7" href="#__codelineno-18-7"></a>show(`Ends with &#39;.&#39;: `, result2); !! 输出: false
</code></pre></div>
<h3 id="_12">字符串重复<a class="headerlink" href="#_12" title="Permanent link">&para;</a></h3>
<h4 id="stringrepeats-count">string.repeat(s, count)<a class="headerlink" href="#stringrepeats-count" title="Permanent link">&para;</a></h4>
<p>重复字符串指定次数。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串
- <code>count</code> - 重复次数</p>
<p><strong>返回值：</strong>
- 重复后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a>@string;
<a id="__codelineno-19-2" name="__codelineno-19-2" href="#__codelineno-19-2"></a>
<a id="__codelineno-19-3" name="__codelineno-19-3" href="#__codelineno-19-3"></a>text = `Hello `;
<a id="__codelineno-19-4" name="__codelineno-19-4" href="#__codelineno-19-4"></a>result = string.repeat(text, 3);
<a id="__codelineno-19-5" name="__codelineno-19-5" href="#__codelineno-19-5"></a>show(`Repeated: `, result); !! 输出: Hello Hello Hello
</code></pre></div>
<h3 id="_13">字符串反转<a class="headerlink" href="#_13" title="Permanent link">&para;</a></h3>
<h4 id="stringreverses">string.reverse(s)<a class="headerlink" href="#stringreverses" title="Permanent link">&para;</a></h4>
<p>反转字符串。</p>
<p><strong>参数：</strong>
- <code>s</code> - 字符串</p>
<p><strong>返回值：</strong>
- 反转后的字符串</p>
<p><strong>示例：</strong></p>
<div class="highlight"><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a>@string;
<a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a>
<a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a>text = `Hello`;
<a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a>result = string.reverse(text);
<a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a>show(`Reversed: `, result); !! 输出: olleH
</code></pre></div>
<h2 id="_14">示例代码<a class="headerlink" href="#_14" title="Permanent link">&para;</a></h2>
<div class="highlight"><pre><span></span><code><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a>@string;
<a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a>
<a id="__codelineno-21-3" name="__codelineno-21-3" href="#__codelineno-21-3"></a>!! 字符串分割与连接
<a id="__codelineno-21-4" name="__codelineno-21-4" href="#__codelineno-21-4"></a>text = `Hello,World,Oraset`;
<a id="__codelineno-21-5" name="__codelineno-21-5" href="#__codelineno-21-5"></a>show(`Original: `, text);
<a id="__codelineno-21-6" name="__codelineno-21-6" href="#__codelineno-21-6"></a>show(`Split: `, string.split(text, `,`));
<a id="__codelineno-21-7" name="__codelineno-21-7" href="#__codelineno-21-7"></a>
<a id="__codelineno-21-8" name="__codelineno-21-8" href="#__codelineno-21-8"></a>arr = arr(`Hello`, `World`, `Oraset`);
<a id="__codelineno-21-9" name="__codelineno-21-9" href="#__codelineno-21-9"></a>show(`Joined: `, string.join(arr, ` `));
<a id="__codelineno-21-10" name="__codelineno-21-10" href="#__codelineno-21-10"></a>
<a id="__codelineno-21-11" name="__codelineno-21-11" href="#__codelineno-21-11"></a>!! 大小写转换
<a id="__codelineno-21-12" name="__codelineno-21-12" href="#__codelineno-21-12"></a>text = `Hello, Oraset!`;
<a id="__codelineno-21-13" name="__codelineno-21-13" href="#__codelineno-21-13"></a>show(`Original: `, text);
<a id="__codelineno-21-14" name="__codelineno-21-14" href="#__codelineno-21-14"></a>show(`Upper: `, string.upper(text));
<a id="__codelineno-21-15" name="__codelineno-21-15" href="#__codelineno-21-15"></a>show(`Lower: `, string.lower(text));
<a id="__codelineno-21-16" name="__codelineno-21-16" href="#__codelineno-21-16"></a>show(`Capitalized: `, string.capitalize(text));
<a id="__codelineno-21-17" name="__codelineno-21-17" href="#__codelineno-21-17"></a>
<a id="__codelineno-21-18" name="__codelineno-21-18" href="#__codelineno-21-18"></a>!! 字符串长度与提取
<a id="__codelineno-21-19" name="__codelineno-21-19" href="#__codelineno-21-19"></a>text = `Hello, Oraset!`;
<a id="__codelineno-21-20" name="__codelineno-21-20" href="#__codelineno-21-20"></a>show(`Length: `, string.length(text));
<a id="__codelineno-21-21" name="__codelineno-21-21" href="#__codelineno-21-21"></a>show(`Substring from 7: `, string.substring(text, 7));
<a id="__codelineno-21-22" name="__codelineno-21-22" href="#__codelineno-21-22"></a>show(`Substring 0-5: `, string.substring(text, 0, 5));
<a id="__codelineno-21-23" name="__codelineno-21-23" href="#__codelineno-21-23"></a>show(`Character at 0: `, string.charAt(text, 0));
<a id="__codelineno-21-24" name="__codelineno-21-24" href="#__codelineno-21-24"></a>
<a id="__codelineno-21-25" name="__codelineno-21-25" href="#__codelineno-21-25"></a>!! 字符串查找
<a id="__codelineno-21-26" name="__codelineno-21-26" href="#__codelineno-21-26"></a>text = `Hello, Oraset!`;
<a id="__codelineno-21-27" name="__codelineno-21-27" href="#__codelineno-21-27"></a>show(`Index of &#39;Oraset&#39;: `, string.indexOf(text, `Oraset`));
<a id="__codelineno-21-28" name="__codelineno-21-28" href="#__codelineno-21-28"></a>show(`Includes &#39;Oraset&#39;: `, string.includes(text, `Oraset`));
<a id="__codelineno-21-29" name="__codelineno-21-29" href="#__codelineno-21-29"></a>
<a id="__codelineno-21-30" name="__codelineno-21-30" href="#__codelineno-21-30"></a>!! 字符串替换
<a id="__codelineno-21-31" name="__codelineno-21-31" href="#__codelineno-21-31"></a>text = `Hello, World!`;
<a id="__codelineno-21-32" name="__codelineno-21-32" href="#__codelineno-21-32"></a>show(`Original: `, text);
<a id="__codelineno-21-33" name="__codelineno-21-33" href="#__codelineno-21-33"></a>show(`Replaced: `, string.replace(text, `World`, `Oraset`));
<a id="__codelineno-21-34" name="__codelineno-21-34" href="#__codelineno-21-34"></a>
<a id="__codelineno-21-35" name="__codelineno-21-35" href="#__codelineno-21-35"></a>!! 字符串修剪
<a id="__codelineno-21-36" name="__codelineno-21-36" href="#__codelineno-21-36"></a>text = ` Hello, Oraset! `;
<a id="__codelineno-21-37" name="__codelineno-21-37" href="#__codelineno-21-37"></a>show(`Original: &#39;`, text, `&#39;`);
<a id="__codelineno-21-38" name="__codelineno-21-38" href="#__codelineno-21-38"></a>show(`Trimmed: &#39;`, string.trim(text), `&#39;`);
<a id="__codelineno-21-39" name="__codelineno-21-39" href="#__codelineno-21-39"></a>show(`Trimmed start: &#39;`, string.trimStart(text), `&#39;`);
<a id="__codelineno-21-40" name="__codelineno-21-40" href="#__codelineno-21-40"></a>show(`Trimmed end: &#39;`, string.trimEnd(text), `&#39;`);
<a id="__codelineno-21-41" name="__codelineno-21-41" href="#__codelineno-21-41"></a>
<a id="__codelineno-21-42" name="__codelineno-21-42" href="#__codelineno-21-42"></a>!! 字符串检查
<a id="__codelineno-21-43" name="__codelineno-21-43" href="#__codelineno-21-43"></a>text = `Hello, Oraset!`;
<a id="__codelineno-21-44" name="__codelineno-21-44" href="#__codelineno-21-44"></a>show(`Starts with &#39;Hello&#39;: `, string.startsWith(text, `Hello`));
<a id="__codelineno-21-45" name="__codelineno-21-45" href="#__codelineno-21-45"></a>show(`Ends with &#39;!&#39;: `, string.endsWith(text, `!`));
<a id="__codelineno-21-46" name="__codelineno-21-46" href="#__codelineno-21-46"></a>
<a id="__codelineno-21-47" name="__codelineno-21-47" href="#__codelineno-21-47"></a>!! 字符串重复和反转
<a id="__codelineno-21-48" name="__codelineno-21-48" href="#__codelineno-21-48"></a>text = `Hello`;
<a id="__codelineno-21-49" name="__codelineno-21-49" href="#__codelineno-21-49"></a>show(`Original: `, text);
<a id="__codelineno-21-50" name="__codelineno-21-50" href="#__codelineno-21-50"></a>show(`Repeated: `, string.repeat(text, 3));
<a id="__codelineno-21-51" name="__codelineno-21-51" href="#__codelineno-21-51"></a>show(`Reversed: `, string.reverse(text));
</code></pre></div>
<h2 id="_15">注意事项<a class="headerlink" href="#_15" title="Permanent link">&para;</a></h2>
<ul>
<li>字符串索引从 0 开始</li>
<li>所有字符串操作函数都返回新的字符串，不会修改原始字符串</li>
<li>对于 <code>substring</code> 函数，如果不指定 <code>end</code> 参数，将提取到字符串末尾</li>
<li>对于 <code>split</code> 函数，如果分隔符为空字符串，将分割每个字符</li>
</ul>
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