1，搭建openharmony开发环境，可参考如下连接：
zh-cn/release-notes/OpenHarmony-v5.0.2-release.md · OpenHarmony/docs - Gitee.com

2，dayu210 代码下载链接如下：
repo init -u [email protected]:dayu210/manifest.git -b OpenHarmony-5.0.2-Release -m default.xml

编译命令：
./build.sh --product-name dayu210