diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,97 +1,35 @@
-This is a new [**React Native**](https://reactnative.dev) project, bootstrapped using [`@react-native-community/cli`](https://github.com/react-native-community/cli).
+# 1. 项目结构
-# Getting Started
+> - common：公共模块
+> - app：首页，基础应用
+> - miniapp
+> - hospital： 互联网医院(下线)
+> - ywq：医网签
+> - ……：其它子应用（小程序）
+>
-> **Note**: Make sure you have completed the [Set Up Your Environment](https://reactnative.dev/docs/set-up-your-environment) guide before proceeding.
+# 2. 说明
+> 1. 下证等逻辑放在`common`里面
+> 2. 方法类工具类放在`common`里面
+> 3. 小程序共有的功能点，复用点放在`common`里面
+> 4. 避免`common`引用子级(app、miniapp)，造成循环依赖
+>
-## Step 1: Start Metro
+# 3. 分包说明
+> 1. common和app模块在一个包里，miniapp在一个包里
+> 2. App启动时会默认加载第一个common包，点击进入小程序时，加载第二个包
+> 3. 打包命令如下:
+> 1. `build-android-common`：打基础common包
+> 2. `build-android-buz`：打业务包
+> 4. 先打基础包再打业务包，如果基础包没变化，不需要更新，就不要重新打包，避免无法和线上合并
+>
+>
+# 4. 部分方法类工具类整理
+### 4.1 Toast提示
-First, you will need to run **Metro**, the JavaScript build tool for React Native.
+```ts
+import {showErrorMessage, showMessage} from "@common/ToastHelper";
-To start the Metro dev server, run the following command from the root of your React Native project:
-
-```sh
-# Using npm
-npm start
-
-# OR using Yarn
-yarn start
+showMessage()
+showErrorMessage()
```
-
-## Step 2: Build and run your app
-
-With Metro running, open a new terminal window/pane from the root of your React Native project, and use one of the following commands to build and run your Android or iOS app:
-
-### Android
-
-```sh
-# Using npm
-npm run android
-
-# OR using Yarn
-yarn android
-```
-
-### iOS
-
-For iOS, remember to install CocoaPods dependencies (this only needs to be run on first clone or after updating native deps).
-
-The first time you create a new project, run the Ruby bundler to install CocoaPods itself:
-
-```sh
-bundle install
-```
-
-Then, and every time you update your native dependencies, run:
-
-```sh
-bundle exec pod install
-```
-
-For more information, please visit [CocoaPods Getting Started guide](https://guides.cocoapods.org/using/getting-started.html).
-
-```sh
-# Using npm
-npm run ios
-
-# OR using Yarn
-yarn ios
-```
-
-If everything is set up correctly, you should see your new app running in the Android Emulator, iOS Simulator, or your connected device.
-
-This is one way to run your app — you can also build it directly from Android Studio or Xcode.
-
-## Step 3: Modify your app
-
-Now that you have successfully run the app, let's make changes!
-
-Open `App.tsx` in your text editor of choice and make some changes. When you save, your app will automatically update and reflect these changes — this is powered by [Fast Refresh](https://reactnative.dev/docs/fast-refresh).
-
-When you want to forcefully reload, for example to reset the state of your app, you can perform a full reload:
-
-- **Android**: Press the R key twice or select **"Reload"** from the **Dev Menu**, accessed via Ctrl + M (Windows/Linux) or Cmd ⌘ + M (macOS).
-- **iOS**: Press R in iOS Simulator.
-
-## Congratulations! :tada:
-
-You've successfully run and modified your React Native App. :partying_face:
-
-### Now what?
-
-- If you want to add this new React Native code to an existing application, check out the [Integration guide](https://reactnative.dev/docs/integration-with-existing-apps).
-- If you're curious to learn more about React Native, check out the [docs](https://reactnative.dev/docs/getting-started).
-
-# Troubleshooting
-
-If you're having issues getting the above steps to work, see the [Troubleshooting](https://reactnative.dev/docs/troubleshooting) page.
-
-# Learn More
-
-To learn more about React Native, take a look at the following resources:
-
-- [React Native Website](https://reactnative.dev) - learn more about React Native.
-- [Getting Started](https://reactnative.dev/docs/environment-setup) - an **overview** of React Native and how setup your environment.
-- [Learn the Basics](https://reactnative.dev/docs/getting-started) - a **guided tour** of the React Native **basics**.
-- [Blog](https://reactnative.dev/blog) - read the latest official React Native **Blog** posts.
-- [`@facebook/react-native`](https://github.com/facebook/react-native) - the Open Source; GitHub **repository** for React Native.