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核心代码。

登录www.iconfont.cn下载3个icon在statics文件夹下创建一个iconfont文件夹将文件导入将iconfont.css改为iconfont.js将样式注册到全局在index.js引入文件App.js应用header下的index.jsheader下的style.js注意：使用火狐浏览器可能存在不显示icon情况...

index.jsstyle.js 下载styled-components导入logo创建statics文件夹导入图片在src下创建common文件夹在common下创建header文件夹在header文件夹下创建index.js、style.jsindex.jsstyle.js效果图

src\index.js Line 9:1: 'root' is not defined no-undefSearch for the keywords to learn more about each error.ERROR in src\index.js Line 9:1: 'root' is not defined no-undefSearch for the keywords to learn more about each error.webpack compiled

Failed to parse source map: 'webpack://antd/./components/config-provider/style/index.less' URL is not supportedFailed to parse source map: 'webpack://antd/./components/icon/style/index.less' URL is not supportedFailed to parse source map: 'webpack://an

原因 误删了public文件夹

React开发环境搭建安装脚手架前提：以安装node.js、npm命令行 npm install -g create-react-app创建app create-react-app hello2022启动进去文件夹命令行输入 npm start如果服务器一直不启动将powershell.exe添加进信任区启动成功...