js怎么修改div的高度

// 获取div元素
var div = document.getElementById('myDiv');

// 设置高度为200px
div.style.height = '200px';

// 设置高度为父元素的50%
div.style.height = '50%';

function adjustHeight() {
    var newHeight = window.innerHeight / 2; // 例如，设置为窗口高度的一半
    div.style.height = newHeight + 'px';
}

// 初始调用
adjustHeight();

// 窗口大小变化时重新调整
window.addEventListener('resize', adjustHeight);

function debounce(func, wait) {
    let timeout;
    return function(...args) {
        clearTimeout(timeout);
        timeout = setTimeout(() => func.apply(this, args), wait);
    };
}

const debouncedAdjustHeight = debounce(adjustHeight, 100);

window.addEventListener('resize', debouncedAdjustHeight);