This project was bootstrapped with Create React App.
In the project directory, you can run:
Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.
The page will reload when you make changes.
You may also see any lint errors in the console.
Launches the test runner in the interactive watch mode.
See the section about running tests for more information.
Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
See the section about deployment for more information.
Note: this is a one-way operation. Once you eject, you can't go back!
If you aren't satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you're on your own.
You don't have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn't feel obligated to use this feature. However we understand that this tool wouldn't be useful if you couldn't customize it when you are ready for it.
You can learn more in the Create React App documentation.
To learn React, check out the React documentation.
This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting
This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size
This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app
This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration
This section has moved here: https://facebook.github.io/create-react-app/docs/deployment
This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify
my-first-react-app/ ├── node_modules/ # 项目依赖的所有库文件。不要修改此文件夹下的任何内容！ ├── public/ # 公共静态资源文件夹 │ ├── index.html # 应用程序的入口 HTML 文件，React 应用会挂载到这个文件中 │ ├── favicon.ico # 网站图标 │ └── ... ├── src/ # 源代码文件夹。你将在这里编写大部分的 React 代码！ │ ├── App.js # 应用程序的主要组件 │ ├── App.css # App.js 的样式文件 │ ├── index.js # JavaScript 入口文件，负责将 React 应用渲染到 index.html │ ├── index.css # 全局样式文件 │ ├── reportWebVitals.js # 用于测量应用性能的工具 │ ├── setupTests.js # 测试环境设置文件 │ └── ... ├── .gitignore # Git 版本控制忽略文件 ├── package.json # 项目配置文件，包含项目信息、依赖项和可运行的脚本 ├── README.md # 项目说明文件 └── yarn.lock 或 package-lock.json # 锁定依赖版本，确保团队成员安装相同的依赖版本