build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply plugin: 'com.alibaba.arouter'

buildscript {
    ext.kotlin_version = '1.2.71'
    ext.kotlin_version = '1.2.61'

    apply from: 'version.gradle'

    ext {//全局初始化
        lib_config = "${rootDir}/lib_config.gradle"
        module_config = "${rootDir}/module_config.gradle"
        module_dependencies = "${rootDir}/dependencies.gradle"
    }

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:$gradle_plugins"
        classpath deps.kotlin.gradle
        classpath "com.alibaba:arouter-register:1.0.2"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

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

allprojects {//所有模块都要初始化的东西
    repositories {//下依赖的仓库
        google()
        jcenter()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    }
}

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