Day 9: 實踐一個簡單的 Web 應用程序，如一個基本的 To-Do List

16th鐵人賽

ouoquq

團隊NUTC imac

2024-09-17 15:57:18

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基本 To-Do List Web 應用程式

1. HTML

首先，創建一個基本的 HTML 結構：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>To-Do List</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <div class="container">
        <h1>To-Do List</h1>
        <input type="text" id="taskInput" placeholder="Add a new task">
        <button id="addTaskButton">Add Task</button>
        <ul id="taskList"></ul>
    </div>
    <script src="script.js"></script>
</body>
</html>

2. CSS

接著，添加一些基本的樣式：

/* styles.css */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

input[type="text"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

button {
    padding: 10px;
    background-color: #28a745;
    border: none;
    color: #fff;
    border-radius: 3px;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

li:last-child {
    border-bottom: none;
}

.deleteButton {
    margin-left: 10px;
    background-color: #dc3545;
    border: none;
    color: #fff;
    border-radius: 3px;
    cursor: pointer;
}

.deleteButton:hover {
    background-color: #c82333;
}

3. JavaScript

最後，實現基本的功能：

// script.js
document.addEventListener('DOMContentLoaded', () => {
    const taskInput = document.getElementById('taskInput');
    const addTaskButton = document.getElementById('addTaskButton');
    const taskList = document.getElementById('taskList');

    addTaskButton.addEventListener('click', () => {
        const taskText = taskInput.value.trim();
        if (taskText !== '') {
            const li = document.createElement('li');
            li.textContent = taskText;

            // Add a delete button to each task
            const deleteButton = document.createElement('button');
            deleteButton.textContent = 'Delete';
            deleteButton.className = 'deleteButton';
            deleteButton.addEventListener('click', () => {
                taskList.removeChild(li);
            });

            li.appendChild(deleteButton);
            taskList.appendChild(li);
            taskInput.value = '';
        }
    });

    // Allow pressing Enter to add tasks
    taskInput.addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            addTaskButton.click();
        }
    });
});

這樣，你就有了一個基本的 To-Do List 應用程序。可以進一步擴展功能，比如儲存任務到本地，進行儲存、編輯任務等。