leetcode-problemset/leetcode-cn/originData/valid-number.json

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            "categoryTitle": "Algorithms",
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            "title": "Valid Number",
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            "content": "<p>A <strong>valid number</strong> can be split up into these components (in order):</p>\n\n<ol>\n\t<li>A <strong>decimal number</strong> or an <strong>integer</strong>.</li>\n\t<li>(Optional) An <code>&#39;e&#39;</code> or <code>&#39;E&#39;</code>, followed by an <strong>integer</strong>.</li>\n</ol>\n\n<p>A <strong>decimal number</strong> can be split up into these components (in order):</p>\n\n<ol>\n\t<li>(Optional) A sign character (either <code>&#39;+&#39;</code> or <code>&#39;-&#39;</code>).</li>\n\t<li>One of the following formats:\n\t<ol>\n\t\t<li>One or more digits, followed by a dot <code>&#39;.&#39;</code>.</li>\n\t\t<li>One or more digits, followed by a dot <code>&#39;.&#39;</code>, followed by one or more digits.</li>\n\t\t<li>A dot <code>&#39;.&#39;</code>, followed by one or more digits.</li>\n\t</ol>\n\t</li>\n</ol>\n\n<p>An <strong>integer</strong> can be split up into these components (in order):</p>\n\n<ol>\n\t<li>(Optional) A sign character (either <code>&#39;+&#39;</code> or <code>&#39;-&#39;</code>).</li>\n\t<li>One or more digits.</li>\n</ol>\n\n<p>For example, all the following are valid numbers: <code>[&quot;2&quot;, &quot;0089&quot;, &quot;-0.1&quot;, &quot;+3.14&quot;, &quot;4.&quot;, &quot;-.9&quot;, &quot;2e10&quot;, &quot;-90E3&quot;, &quot;3e+7&quot;, &quot;+6e-1&quot;, &quot;53.5e93&quot;, &quot;-123.456e789&quot;]</code>, while the following are not valid numbers: <code>[&quot;abc&quot;, &quot;1a&quot;, &quot;1e&quot;, &quot;e3&quot;, &quot;99e2.5&quot;, &quot;--6&quot;, &quot;-+3&quot;, &quot;95a54e53&quot;]</code>.</p>\n\n<p>Given a string <code>s</code>, return <code>true</code><em> if </em><code>s</code><em> is a <strong>valid number</strong></em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;0&quot;\n<strong>Output:</strong> true\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;e&quot;\n<strong>Output:</strong> false\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;.&quot;\n<strong>Output:</strong> false\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 20</code></li>\n\t<li><code>s</code> consists of only English letters (both uppercase and lowercase), digits (<code>0-9</code>), plus <code>&#39;+&#39;</code>, minus <code>&#39;-&#39;</code>, or dot <code>&#39;.&#39;</code>.</li>\n</ul>\n",
            "translatedTitle": "有效数字",
            "translatedContent": "<p><strong>有效数字</strong>（按顺序）可以分成以下几个部分：</p>\n\n<ol>\n\t<li>一个 <strong>小数</strong> 或者 <strong>整数</strong></li>\n\t<li>（可选）一个 <code>'e'</code> 或 <code>'E'</code> ，后面跟着一个 <strong>整数</strong></li>\n</ol>\n\n<p><strong>小数</strong>（按顺序）可以分成以下几个部分：</p>\n\n<ol>\n\t<li>（可选）一个符号字符（<code>'+'</code> 或 <code>'-'</code>）</li>\n\t<li>下述格式之一：\n\t<ol>\n\t\t<li>至少一位数字，后面跟着一个点 <code>'.'</code></li>\n\t\t<li>至少一位数字，后面跟着一个点 <code>'.'</code> ，后面再跟着至少一位数字</li>\n\t\t<li>一个点 <code>'.'</code> ，后面跟着至少一位数字</li>\n\t</ol>\n\t</li>\n</ol>\n\n<p><strong>整数</strong>（按顺序）可以分成以下几个部分：</p>\n\n<ol>\n\t<li>（可选）一个符号字符（<code>'+'</code> 或 <code>'-'</code>）</li>\n\t<li>至少一位数字</li>\n</ol>\n\n<p>部分有效数字列举如下：<code>[\"2\", \"0089\", \"-0.1\", \"+3.14\", \"4.\", \"-.9\", \"2e10\", \"-90E3\", \"3e+7\", \"+6e-1\", \"53.5e93\", \"-123.456e789\"]</code></p>\n\n<p>部分无效数字列举如下：<code>[\"abc\", \"1a\", \"1e\", \"e3\", \"99e2.5\", \"--6\", \"-+3\", \"95a54e53\"]</code></p>\n\n<p>给你一个字符串 <code>s</code> ，如果 <code>s</code> 是一个 <strong>有效数字</strong> ，请返回 <code>true</code> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \"0\"\n<strong>输出：</strong>true\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \"e\"\n<strong>输出：</strong>false\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \".\"\n<strong>输出：</strong>false\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 20</code></li>\n\t<li><code>s</code> 仅含英文字母（大写和小写），数字（<code>0-9</code>），加号 <code>'+'</code> ，减号 <code>'-'</code> ，或者点 <code>'.'</code> 。</li>\n</ul>\n",
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