js控制滚轮

document.addEventListener('wheel', function(event) {
    event.preventDefault(); // 阻止默认滚动行为

    const delta = Math.sign(event.deltaY); // 获取滚轮方向
    const scrollAmount = 50; // 每次滚动的像素数

    window.scrollBy({
        top: delta * scrollAmount,
        behavior: 'smooth' // 平滑滚动效果
    });
}, { passive: false }); // 设置 passive 为 false 以允许 preventDefault

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);
        }
    };
}

document.addEventListener('wheel', throttle(function(event) {
    // 处理滚动事件
}, 100)); // 每100毫秒最多执行一次

// 使用 smoothscroll-polyfill 库
import smoothscroll from 'smoothscroll-polyfill';
smoothscroll.polyfill();

document.addEventListener('wheel', function(event) {
    event.preventDefault();
    const delta = Math.sign(event.deltaY);
    window.scrollBy({ top: delta * 50, behavior: 'smooth' });
}, { passive: false });