instanceof List
时间: 2023-08-23 16:07:51 浏览: 124
instanceof List是一种用于检查一个对象是否是List类型的方式。在给定的代码中,通过使用instanceof运算符,可以检查对象a是否是List类型。如果是List类型,那么可以进一步检查该List是否为空。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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