DAY20:優化 React 應用的 UI/UX

2024 iThome 鐵人賽

DAY 20

Python

Python自修系列第 20 篇

16th鐵人賽

frankfrank8785

2024-08-23 21:28:38

134 瀏覽

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安裝 Tailwind CSS

npm install -D tailwindcss
npx tailwindcss init

tailwind.config.js

module.exports = {
  content: [
    "./templates/**/*.{html,js}",
    "./static/**/*.{html,js}",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
}

static/styles.css

@tailwind base;
@tailwind components;
@tailwind utilities;

index.html

<!DOCTYPE html>
<html lang="zh-Hant">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>第二十天 - 優化前端界面</title>
    <link rel="stylesheet" href="/static/styles.css">
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
</head>
<body class="bg-gray-100 text-gray-800">
    <div id="root" class="container mx-auto p-4"></div>
    <script src="https://unpkg.com/react@17/umd/react.development.js"></script>
    <script src="https://unpkg.com/react-dom@17/umd/react-dom.development.js"></script>
    <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
    <script type="text/babel">
        function App() {
            const [chartData, setChartData] = React.useState(null);

            React.useEffect(() => {
                fetch('/api/chart-data')
                    .then(response => response.json())
                    .then(data => setChartData(data));
            }, []);

            React.useEffect(() => {
                if (chartData) {
                    const ctx = document.getElementById('myChart').getContext('2d');
                    new Chart(ctx, {
                        type: 'bar',
                        data: chartData,
                        options: {
                            scales: {
                                y: {
                                    beginAtZero: true
                                }
                            }
                        }
                    });
                }
            }, [chartData]);

            return (
                <div className="bg-white shadow rounded-lg p-6">
                    <h1 className="text-2xl font-bold mb-4">第二十天 - 優化前端界面</h1>
                    <canvas id="myChart"></canvas>
                </div>
            );
        }

        ReactDOM.render(<App />, document.getElementById('root'));
    </script>
</body>
</html>

安裝 React Router

npm install react-router-dom

import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';

function App() {
    return (
        <Router>
            <Switch>
                <Route path="/" exact>
                    <Home />
                </Route>
                <Route path="/about">
                    <About />
                </Route>
            </Switch>
        </Router>
    );
}

function Home() {
    return <h1>首頁</h1>;
}

function About() {
    return <h1>關於我們</h1>;
}

ReactDOM.render(<App />, document.getElementById('root'));

大概的結構圖會長這樣
app.py
templates/index.html
static/styles.css