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leetcode-cn/problem (Chinese)/移除字符串中的尾随零 [remove-trailing-zeros-from-a-string].html Normal file
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<p>给你一个用字符串表示的正整数 <code>num</code> ，请你以字符串形式返回不含尾随零的整数<em> </em><code>num</code><em> </em>。</p>
<p>&nbsp;</p>
<p><strong>示例 1：</strong></p>
<pre><strong>输入：</strong>num = "51230100"
<strong>输出：</strong>"512301"
<strong>解释：</strong>整数 "51230100" 有 2 个尾随零，移除并返回整数 "512301" 。
</pre>
<p><strong>示例 2：</strong></p>
<pre><strong>输入：</strong>num = "123"
<strong>输出：</strong>"123"
<strong>解释：</strong>整数 "123" 不含尾随零，返回整数 "123" 。
</pre>
<p>&nbsp;</p>
<p><strong>提示：</strong></p>
<ul>
<li><code>1 &lt;= num.length &lt;= 1000</code></li>
<li><code>num</code> 仅由数字 <code>0</code> 到 <code>9</code> 组成</li>
<li><code>num</code> 不含前导零</li>
</ul>