如何Android项目变成两个独立的项目，将build.gradle文件中applicationId中名字更换

android {    signingConfigs {        config {            keyAlias 'nengjian'            keyPassword 'nengjian'            storeFile file('E:/nengjian.key')            storePassword 'nengjian'        }    }    compileSdkVersion 23    buildToolsVersion "23.0.1"    defaultConfig {        applicationId "com.android.nengjian"        minSdkVersion 14        targetSdkVersion 23        compileOptions {            sourceCompatibility JavaVersion.VERSION_1_7            targetCompatibility JavaVersion.VERSION_1_7        }        signingConfig signingConfigs.config    }