判断string不为空
时间: 2023-09-18 18:07:06 浏览: 56
要判断一个字符串不为空,可以使用以下方法:
1. 使用isEmpty()方法:isEmpty()方法可以用来判断一个字符串是否为空,即长度是否为0。但需要注意的是,isEmpty()方法不能用来判断null值,否则会报空指针异常。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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