document.getElementById('convert').addEventListener('click', function () {
    const input = document.getElementById('input').value;
    const fromBase = parseInt(document.getElementById('from-base').value);
    const toBase = parseInt(document.getElementById('to-base').value);

    // 将输入转换为十进制
    let decimal;
    try {
        decimal = parseInt(input, fromBase);
        if (isNaN(decimal)) throw new Error("无效输入");
    } catch (error) {
        document.getElementById('result').innerText = "输入无效，请检查!";
        return;
    }

    // 将十进制转换为目标进制
    let result;
    switch (toBase) {
        case 2:
            result = decimal.toString(2);
            break;
        case 8:
            result = decimal.toString(8);
            break;
        case 10:
            result = decimal.toString(10);
            break;
        case 16:
            result = decimal.toString(16).toUpperCase();
            break;
    }

    document.getElementById('result').innerText = result;
});