vol(tuple)
时间: 2023-11-15 16:14:03 浏览: 43
根据引用中的代码,vol是一个tuple类型的变量,它是通过执行select操作后,使用`cursor.fetchall()`方法返回的结果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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