济南做网站的好公司有哪些分类信息网站平台有哪些

在浏览网页的时候，发现有的网页没有直达最前这样的功能，所有心血来潮利用ChatGPT写了一个油猴脚本以实现此功能，在网站上出现一个可以自由拖动的滑块。
声明：引用或二创需注明出处。

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如图：
点击即可直达当前网页最前、中间、最后。
可以任意在网页上推动，点击小齿轮有简单的设置。
感觉可以在优化一下，直接发布脚本了。

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脚本在此，可以复制自己用哟：

// ==UserScript==
// @name         滚动助手（优化版）
// @namespace    https://github.com/yourname/scroll-helper
// @version      1.0
// @description  支持快捷滚动、自定义热键、图标拖动、暗色模式、图形化设置中心，适配所有网页
// @author       GPT、依旧天真无邪
// @match        *://*/*
// @require      https://unpkg.com/sweetalert2@10.16.6/dist/sweetalert2.all.min.js
// @grant        none
// ==/UserScript==(function () {'use strict';const defaultConfig = {scrollKeys: { top: 'ArrowUp', bottom: 'ArrowDown' },autoShow: true,iconSize: 18,iconGap: 8,borderRadius: 12,panelOpacity: 60,iconPos: { right: 30, bottom: 100 },darkMode: false,keyEnabled: true};const storageKey = 'ScrollHelperConfig';const config = Object.assign({}, defaultConfig, JSON.parse(localStorage.getItem(storageKey) || '{}'));const isDark = config.darkMode || window.matchMedia('(prefers-color-scheme: dark)').matches;const Util = {saveConfig() {localStorage.setItem(storageKey, JSON.stringify(config));},createBtn(id, label, title, onClick) {const btn = document.createElement('button');btn.id = id;btn.textContent = label;btn.title = title;Object.assign(btn.style, {all: 'unset',fontSize: `${config.iconSize}px`,padding: '6px',borderRadius: `${config.borderRadius}px`,background: isDark ? '#444' : '#007BFF',color: '#fff',cursor: 'pointer',boxShadow: '0 1px 4px rgba(0,0,0,0.2)',textAlign: 'center',transition: 'transform 0.2s'});btn.onmouseover = () => btn.style.transform = 'scale(1.1)';btn.onmouseout = () => btn.style.transform = 'scale(1.0)';btn.onmousedown = () => btn.style.transform = 'scale(0.9)';btn.onmouseup = () => btn.style.transform = 'scale(1.1)';btn.onclick = onClick;return btn;},limitToViewport(pos) {const w = window.innerWidth;const h = window.innerHeight;pos.right = Math.min(Math.max(0, pos.right), w - 50);pos.bottom = Math.min(Math.max(0, pos.bottom), h - 50);return pos;}};const UI = {panel: null,createPanel() {const panel = document.createElement('div');panel.id = 'scroll-helper-panel';Object.assign(panel.style, {position: 'fixed',right: `${config.iconPos.right}px`,bottom: `${config.iconPos.bottom}px`,display: 'flex',flexDirection: 'column',gap: `${config.iconGap}px`,zIndex: 99999,opacity: config.panelOpacity / 100,cursor: 'move'});this.panel = panel;const buttons = [Util.createBtn('scroll-top', '⬆️', '返回顶部', () => window.scrollTo({ top: 0, behavior: 'smooth' })),Util.createBtn('scroll-mid', '↕️', '滚动中部', () => window.scrollTo({ top: (document.body.scrollHeight - window.innerHeight) / 2, behavior: 'smooth' })),Util.createBtn('scroll-bottom', '⬇️', '滚动到底', () => window.scrollTo({ top: document.body.scrollHeight, behavior: 'smooth' })),Util.createBtn('scroll-settings', '⚙️', '设置中心', UI.openSettings)];buttons.forEach(btn => panel.appendChild(btn));document.body.appendChild(panel);this.enableDrag();},enableDrag() {let isDragging = false, startX, startY;this.panel.addEventListener('mousedown', (e) => {isDragging = true;startX = e.clientX;startY = e.clientY;e.preventDefault();});window.addEventListener('mousemove', (e) => {if (!isDragging) return;const dx = e.clientX - startX;const dy = e.clientY - startY;config.iconPos.right -= dx;config.iconPos.bottom -= dy;Util.limitToViewport(config.iconPos);this.panel.style.right = `${config.iconPos.right}px`;this.panel.style.bottom = `${config.iconPos.bottom}px`;startX = e.clientX;startY = e.clientY;});window.addEventListener('mouseup', () => {if (isDragging) {isDragging = false;Util.saveConfig();}});},openSettings() {const html = `<div style="text-align:left"><label>图标大小：<input type="number" id="set-iconSize" value="${config.iconSize}" style="width:60px"></label><br><br><label>圆角半径：<input type="number" id="set-radius" value="${config.borderRadius}" style="width:60px"></label><br><br><label>透明度(%)：<input type="number" id="set-opacity" value="${config.panelOpacity}" style="width:60px"></label><br><br><label><input type="checkbox" id="set-autoShow" ${config.autoShow ? 'checked' : ''}> 自动显示滚动按钮</label><br><br><label><input type="checkbox" id="set-keyEnabled" ${config.keyEnabled ? 'checked' : ''}> 启用快捷键 Ctrl+↑↓</label><br><br><label><input type="checkbox" id="set-darkMode" ${config.darkMode ? 'checked' : ''}> 暗色模式</label></div>`;Swal.fire({title: '滚动助手设置',html,confirmButtonText: '保存设置',showCancelButton: true,preConfirm: () => {config.iconSize = parseInt(document.getElementById('set-iconSize').value);config.borderRadius = parseInt(document.getElementById('set-radius').value);config.panelOpacity = parseInt(document.getElementById('set-opacity').value);config.autoShow = document.getElementById('set-autoShow').checked;config.keyEnabled = document.getElementById('set-keyEnabled').checked;config.darkMode = document.getElementById('set-darkMode').checked;Util.saveConfig();}}).then(res => {if (res.isConfirmed) {location.reload(); // 刷新页面以应用新设置}});},handleScrollDisplay() {if (!config.autoShow) {this.panel.style.display = 'flex';return;}window.addEventListener('scroll', () => {if (window.scrollY > 200) {this.panel.style.display = 'flex';} else {this.panel.style.display = 'none';}});}};const Shortcut = {init() {if (!config.keyEnabled) return;document.addEventListener('keydown', (e) => {if (e.ctrlKey && e.key === config.scrollKeys.top) {window.scrollTo({ top: 0, behavior: 'smooth' });}if (e.ctrlKey && e.key === config.scrollKeys.bottom) {window.scrollTo({ top: document.body.scrollHeight, behavior: 'smooth' });}});}};function init() {UI.createPanel();UI.handleScrollDisplay();Shortcut.init();}if (document.readyState === 'complete' || document.body) {init();} else {window.addEventListener('DOMContentLoaded', init);}})();