gradlew -v 查看版本号
gradlew clean 清除 项目/app/build 文件夹
gradlew build 检查依赖，并编译打包（debug和release包都打出来）
gradlew assembleDebug 编译并只打Debug包
gradlew assembleRelease 编译并只打Release包
gradlew installRelease Release模式打包，并安装
gradlew uninstallRelease 卸载Release包
gradlew -help 查看帮助
gradlew tasks 查看有多少个task
gradlew tasks 查看详细的task