就是这个样的粗爆，手搓一个计算器：BEE计算器

线上运行，可以直接打开：BEE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"><label for="gender">性别:</label><select id="gender"><option value="male">男性</option><option value="female">女性</option></select><label for="age">年龄 (岁):</label> <input id="age" required="" type="number" placeholder="请输入年龄"> <label for="weight">体重 (kg):</label> <input id="weight" required="" type="number" placeholder="请输入体重"> <label for="height">身高 (cm):</label> <input id="height" required="" type="number" placeholder="请输入身高"><button onclick="calculateBEE()">计算BEE</button><div id="result" class="result"></div></div>

JS:

function calculateBEE() {
        var gender = document.getElementById("gender").value;
        var age = parseFloat(document.getElementById("age").value);
        var weight = parseFloat(document.getElementById("weight").value);
        var height = parseFloat(document.getElementById("height").value);

        if (isNaN(age) || isNaN(weight) || isNaN(height) || age <= 0 || weight <= 0 || height <= 0) {
            document.getElementById("result").innerHTML = "请输入有效的数值！";
            return;
        }

        var bee = 0;

        // 使用 Harris-Benedict 方程计算基础代谢率
        if (gender === "male") {
            bee = 88.362 + (13.397 * weight) + (4.799 * height) - (5.677 * age);
        } else if (gender === "female") {
            bee = 447.593 + (9.247 * weight) + (3.098 * height) - (4.330 * age);
        }

        document.getElementById("result").innerHTML = "您的基础代谢率 (BEE) 为: " + bee.toFixed(2) + " 千卡/天";
    }

 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;
}