办法1.可以直接在build.gradle(:app)中加入下面语句: implementation 'org.apache.commons:commons-lang3:3.7' 如下图第4行代码,之后重新 sycn2.手动下载对应链接库jar,然后添加为项目的链接库 Last modification:October 10, 2023 © Allow specification reprint Support Appreciate the author Like If you think my article is useful to you, please feel free to appreciate