前言：
主包家里的厨房在六楼，油烟可以直接从墙上预留通风口排出，所以以下内容是按主包的实际需求出发的
性价比公式
- 风量（\(m^3 / min\)）：也就是吸力，经常爆炒的至少 20 \(m^3 / min\) 最好
- 静压（\(Pa\)）：也就是排烟能力，能直接排出到室外的，400 ~ 500 \(Pa\) 即可
- 油脂分离度（%）：也就是能从烟气中分离出油脂的能力，国家标准至少 80%
- 噪音（\(dB\)）：国家标准不超过65 \(dB\)
下列参数适用于主包需求，仅供参考：
风量目标值：20 \(m^3 / min\)
静压目标值：450 \(Pa\)
油脂分离度目标值：80%
噪音理想值：45 \(dB\)
噪音上限值：65 \(dB\)
各指标权重：风量0.4，静压0.2，油脂分离度0.2，噪音0.2
风量、静压、油脂分离度 \(指标 = 实际值 \div 目标值\)
噪音 \(指标 = max(0, 1 - (实际值 - 理想值) \div (上限值 - 理想值))\)
\(性价比 = (风量指标 \times A + 静压指标 \times B + 油脂分离度指标 \times C + 噪音指标 \times D) \div 价格\)
A、B、C、D为各指标权重，性价比越大越好
可用于现场计算的HTML代码，参数按需修改：
点击查看代码
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<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>油烟机性价比计算器</title><style>body {font-family: 'Microsoft YaHei', sans-serif;margin: 20px;background-color: #f5f5f5;}.container {max-width: 1200px;margin: 0 auto;background-color: white;padding: 20px;border-radius: 8px;box-shadow: 0 2px 10px rgba(0,0,0,0.1);}h1 {text-align: center;color: #333;margin-bottom: 20px;}.instructions {background-color: #f0f8ff;padding: 15px;border-radius: 5px;margin-bottom: 20px;font-size: 14px;line-height: 1.5;}table {width: 100%;border-collapse: collapse;margin-bottom: 20px;}th, td {border: 1px solid #ddd;padding: 10px;text-align: center;}th {background-color: #4CAF50;color: white;font-weight: bold;}input {width: 90%;padding: 5px;border: 1px solid #ccc;border-radius: 3px;text-align: center;}.best-value {background-color: #e8f5e9 !important;}.footer {text-align: center;margin-top: 20px;font-size: 12px;color: #666;}</style>
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<body><div class="container"><h1>油烟机性价比计算器</h1><div class="instructions"><p><strong>使用说明：</strong></p><p>1. 在表格中输入各油烟机型号的参数和价格</p><p>2. 系统会自动计算每行的性价比得分（已放大10000倍）</p><p>3. 当输入超过2行数据时，性价比最高的行将自动高亮显示为浅绿色</p><p><strong>计算公式：</strong></p><p>风量指标 = 实际风量 / 20</p><p>静压指标 = 实际静压 / 450</p><p>油脂分离度指标 = 实际油脂分离度 / 80</p><p>噪音指标 = max(0, 1 - (实际噪音 - 45) / 20)</p><p>总指标 = 风量指标×0.4 + 静压指标×0.2 + 油脂分离度指标×0.2 + 噪音指标×0.2</p><p>性价比 = 总指标 / 价格 × 10000</p></div><table id="comparisonTable"><thead><tr><th>机型名</th><th>风量 (m³/min)</th><th>静压 (Pa)</th><th>油脂分离度 (%)</th><th>噪音 (dB)</th><th>价格 (元)</th><th>性价比(万分之一)</th></tr></thead><tbody><!-- 15行数据输入行 --><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr><tr><td><input type="text" class="model-name"></td><td><input type="number" class="airflow" min="0" step="0.1"></td><td><input type="number" class="pressure" min="0"></td><td><input type="number" class="separation" min="0" max="100" step="0.1"></td><td><input type="number" class="noise" min="0" step="0.1"></td><td><input type="number" class="price" min="0" step="1"></td><td class="value-score">-</td></tr></tbody></table><div class="footer"><p>注：性价比得分越高，表示该机型在同等价格下性能越好（得分已放大10000倍）</p></div></div><script>// 添加输入事件监听器document.addEventListener('DOMContentLoaded', function() {const tableBody = document.querySelector('#comparisonTable tbody');tableBody.addEventListener('input', function(e) {if (e.target.matches('input')) {const row = e.target.closest('tr');calculateValueScore(row);highlightBestValue();}});});// 计算性价比function calculateValueScore(row) {const airflowInput = row.querySelector('.airflow');const pressureInput = row.querySelector('.pressure');const separationInput = row.querySelector('.separation');const noiseInput = row.querySelector('.noise');const priceInput = row.querySelector('.price');const valueScoreCell = row.querySelector('.value-score');// 检查所有必需字段是否已填写if (airflowInput.value && pressureInput.value && separationInput.value && noiseInput.value && priceInput.value) {// 解析输入值const airflow = parseFloat(airflowInput.value);const pressure = parseFloat(pressureInput.value);const separation = parseFloat(separationInput.value);const noise = parseFloat(noiseInput.value);const price = parseFloat(priceInput.value);// 计算各项指标const airflowScore = airflow / 20; // 目标风量20const pressureScore = pressure / 450; // 目标静压450const separationScore = separation / 80; // 目标油脂分离度80const noiseScore = Math.max(0, 1 - (noise - 45) / 20); // 理想噪音45，20就是上限值 - 理想值得到的常数// 计算总指标（加权平均）const totalScore = airflowScore * 0.4 + pressureScore * 0.2 + separationScore * 0.2 + noiseScore * 0.2;// 计算性价比并乘以10000const valueScore = (totalScore / price) * 10000;// 显示结果（保留2位小数）valueScoreCell.textContent = valueScore.toFixed(2);} else {valueScoreCell.textContent = '-';}}// 高亮性价比最高的行function highlightBestValue() {const rows = document.querySelectorAll('#comparisonTable tbody tr');let bestRow = null;let bestScore = -1;let validRows = 0;// 查找最高性价比的行rows.forEach(row => {const valueScoreCell = row.querySelector('.value-score');const scoreText = valueScoreCell.textContent;if (scoreText !== '-') {validRows++;const score = parseFloat(scoreText);if (score > bestScore) {bestScore = score;bestRow = row;}}});// 清除所有高亮rows.forEach(row => row.classList.remove('best-value'));// 如果有超过2行有效数据，高亮最佳行if (validRows > 2 && bestRow) {bestRow.classList.add('best-value');}}</script>
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