多按钮选择状态切换

<p>1.在按钮中设置 <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/abd3b578ea644fe2f5071cbf3d8c27a8" alt="" /></p> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/b93d7761a3f6449fcad5842ef0017aa9" alt="" /> 2.切换到需要按钮的View <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/715faff83d814db1b9cd3fd559a4f1cc" alt="" /></p> <p>测试 预览功能效果</p>