Module 01 · Introduction to React and Class ComponentsReact 与类组件简介
Lab: Hello World with React实验：使用 React 的 Hello World
In this lab, you will be creating your first React page and your first React application. As the first step to learning anything new in the coding world, you will render a 'Hello World' page.
在这个实验室中，您将创建您的第一个 React 页面和第一个 React 应用程序。作为学习编码世界中新事物的第一步，您将渲染一个“Hello World”页面。
To launch the lab, check the box below indicating "I agree to use this app responsibly.", and then click on the "Launch App" button. This will open up the lab environment in a new browser tab.
要启动实验室，请勾选下面的复选框，表示“我同意负责任地使用此应用”，然后点击“启动应用”按钮。这将在新浏览器标签页中打开实验室环境。
This lab uses IBM Skills Network Labs (SN Labs), which is a virtual lab environment used in this course. Upon clicking "Launch App" your Username and Email will be passed to Skills Network Labs and will only be used for communicating important information to enhance your learning experience, in accordance with IBM Skills Network Privacy policy.
此实验室使用 IBM 技能网络实验室（SN Labs），这是本课程中使用的虚拟实验室环境。点击“启动应用”后，您的用户名和电子邮件将被传递到技能网络实验室，并且仅用于向您传达重要信息以增强您的学习体验，符合 IBM 技能网络隐私政策。
In case you need to download or print the lab instructions click HERE to open the lab instructions in a new tab.
如果需要下载或打印实验说明，请点击此处在新标签页中打开实验说明。