背景介绍

本项目设计用于将用户输入的数字系统转换为ASCII字符，同时通过散点图展示数据分布。该应用可独立部署于本地环境，无需依赖第三方框架，重点实现前端交互、后端服务逻辑以及数据可视化技术。

思路分析

前端实现要点

1. 数字转换逻辑：使用JavaScript处理数组转换，通过map函数实现数据映射
2. 数据存储：将结果存储为JSON对象，用于后续可视化展示
3. 事件响应：添加数字输入事件监听器，处理用户交互

后端实现要点

1. API接口设计：使用GET请求获取数据并返回结果
2. 数据处理逻辑：通过Python函数处理输入数组，返回ASCII字符和散点图

数据可视化技术

1. Matplotlib散点图：使用scatter函数绘制数据分布，支持自定义样式
2. 坐标系统设置：定义x/y轴范围，使用默认颜色填充散点

代码实现

前端交互实现

“`html

<h2>数字转换与数据可视化 Web 应用</h2>
输入一组数字，系统将转换为ASCII字符并显示。数据可视化散点图展示数据分布。

<input type="range" id="digitRange" min="1" max="5" value="1-5" />
<input type="number" id="digitInput" min="1" max="5" />
<div class="output-container">

    <p id="outputInfo">ASCII字符：3 → 3、2 → 2、1 → 1、4 → 4、5 → 5</p>

    <canvas id="scatterPlot" width="600" height="400"></canvas>

</div>

<script>
    const digitInput = document.getElementById('digitInput');
    const digitRange = document.getElementById('digitRange');
    const outputInfo = document.getElementById('outputInfo');

    digitInput.addEventListener('input', () => {
        const digits = [...digitRange.value];
        const asciiChars = digits.map(d => {
            return String.fromCharCode(d);
        });
        outputInfo.textContent = `ASCII字符：${asciiChars.join(', ')}`;
    });

    const scatterPlot = document.getElementById('scatterPlot');
    const data = JSON.parse('{"digits": [' + digits.join(',') + '}"]');

    scatterPlot.addEventListener('click', () => {
        const x = data.digits.map(d => d);
        const y = data.digits.map(d => d);
        const points = x.map((x, i) => ({ x: x, y: y[i])));
        const fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = fig = 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