就是这个样的粗爆，手搓一个计算器：子集计算器

线上运行，可以直接打开：子集计算器（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="set-input">输入集合元素 (用逗号分隔):</label> <input id="set-input" type="text" placeholder="例如: a, b, c"></div><div class="operations"><button onclick="calculateSubsets()">计算子集</button></div><div class="result"><p>计算结果:</p><p id="result-output">结果: -</p></div></div>

JS:

function getSubsets(set) {
    const subsets = [];
    const totalSubsets = 1 << set.length; // 2^n

    for (let i = 0; i < totalSubsets; i++) {
        const subset = [];
        for (let j = 0; j < set.length; j++) {
            if (i & (1 << j)) {
                subset.push(set[j]);
            }
        }
        subsets.push(subset);
    }

    return subsets;
}

function calculateSubsets() {
    const setInput = document.getElementById('set-input').value;
    const set = setInput.split(',').map(x => x.trim()).filter(x => x);

    if (set.length === 0) {
        document.getElementById('result-output').textContent = '请输入有效的集合元素。';
        return;
    }

    const subsets = getSubsets(set);
    const result = subsets.map(subset => `{${subset.join(', ')}}`).join(', ');

    document.getElementById('result-output').textContent = `所有子集: ${result}`;
}

 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;
        display: block;
        margin: 0px;
     margin-bottom: 20px;
    margin-left: 0px!important;
}

button:hover {
    background-color: orange;
}

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

option {
        background-color: #ffffff;
}


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