// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
//    仓库配置
    repositories {
        google()
//        一种meaven仓库，将代码托管到jcenter上，可以引用任何jcenter上的开源项目
        jcenter()
    }
    dependencies {
        //    声明gradle插件
        classpath "com.android.tools.build:gradle:4.0.0"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}