就是这个样的粗爆，手搓一个计算器：跑步卡路里计算器

  线上运行，可以直接打开：跑步卡路里计算器(在线计算器)

       作为程序员，没有合适的工具，就得手搓一个，PC端，移动端均可适用。废话不多说，直接上代码。

HTML:

<div class="calculator"><div class="input-group"><label for="weight">体重 (kg)：</label> <input id="weight" type="number" placeholder="请输入您的体重 (kg)"></div><div class="input-group"><label for="speed">跑步速度：</label><select id="speed"><option value="7.0">慢跑（8 km/h，7.0 MET）</option><option value="9.8">中速跑（10 km/h，9.8 MET）</option><option value="11.5">快跑（12 km/h，11.5 MET）</option></select></div><div class="input-group"><label for="duration">跑步时长 (分钟)：</label> <input id="duration" type="number" placeholder="请输入跑步时间 (分钟)"></div><button onclick="calculateRunningCalories()">计算卡路里消耗</button><div id="result" class="result"></div></div>

JS:

function calculateRunningCalories() {
            const weight = parseFloat(document.getElementById("weight").value);
            const speedMET = parseFloat(document.getElementById("speed").value);
            const duration = parseFloat(document.getElementById("duration").value);
            const resultDiv = document.getElementById("result");

            if (isNaN(weight) || isNaN(speedMET) || isNaN(duration) || weight <= 0 || duration <= 0) {
                resultDiv.textContent = "请输入有效的所有数值！";
                return;
            }

            // 计算卡路里消耗
            const caloriesBurned = weight * speedMET * (duration / 60);

            // 显示结果
            resultDiv.textContent = `卡路里消耗：约 ${caloriesBurned.toFixed(2)} 大卡`;
        }

CSS:

.calculator {
    width: 100%;
    background-color: #333;
    color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}


label {
    display: block;
    margin-bottom: 10px;
    font-size: 16px;
}

input, select {
    width: 100%!important;
    padding: 10px!important;
    margin-bottom: 20px;
       color: #000000; 
    border-radius: 5px;
    border: 1px solid #555;
    font-size: 16px!important;
    background-color: #ffffff!important;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: orange;
}

.result {
  font-size: 18px;
    margin-top: 20px;
    text-align: center;
}

option {
        background-color: #ffffff;
}


p {
    font-size: 18px;
        margin-top: 5px!important;
}