js监控鼠标滚轮

window.addEventListener('wheel', function(event) {
    if (event.deltaY > 0) {
        console.log('向下滚动');
    } else {
        console.log('向上滚动');
    }
    console.log('滚动距离：', event.deltaY);
});

var element = document.getElementById('myElement');
element.addEventListener('wheel', function(event) {
    // 处理滚轮事件
});

function throttle(func, limit) {
    let inThrottle;
    return function() {
        const args = arguments;
        const context = this;
        if (!inThrottle) {
            func.apply(context, args);
            inThrottle = true;
            setTimeout(() => inThrottle = false, limit);
        }
    }
}

window.addEventListener('wheel', throttle(function(event) {
    // 处理滚轮事件
}, 100)); // 限制事件处理函数每100毫秒最多执行一次