Javascript 为什么ant design没有'；t在reactjs中加载CSS

我用react和ant设计了一个前端，但我有问题 没有错误，但页面看起来像没有CSS的html 我使用布局组件

这就是我使用的：（页眉内容页脚）

npm版本：6.14.9 nodejs版本：14.15.3

下面是一些代码：

src/index.js：

import React from "react";
import ReactDom from "react-dom";

import App from "./app";

class CustomMain extends React.Component {
  render() {
    return <App />;
  }
}

ReactDom.render(<CustomMain />, document.getElementById("root"));

---

听起来您缺少导入内容。
确保添加了

import'antd/dist/antd.css'

在

index.js

文件中

您可以在此处查找更多信息：

import React from "react";
import CustomLayout from "./containers/Layout";

class App extends React.Component {
  render() {
    return <CustomLayout />;
  }
}

export default App;

import React from "react";
import CustomLayout from "./containers/Layout";

class App extends React.Component {
  render() {
    return <CustomLayout />;
  }
}

export default App;

{
  "name": "gui",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.11.6",
    "@testing-library/react": "^11.2.2",
    "@testing-library/user-event": "^12.6.0",
    "antd": "^4.9.4",
    "react": "^17.0.1",
    "react-dom": "^17.0.1",
    "react-scripts": "4.0.1",
    "web-vitals": "^0.2.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}