怎么截取字符串之前的
时间: 2024-04-28 14:18:53 浏览: 8
在Java中,可以使用substring()方法来截取字符串之前的部分。在示例代码中,使用了str.substring(0, str.indexOf("_"))来截取字符串中第一个"_"之前的部分。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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