Calibre Viewer，SumatraPDF，还有国产的几个阅读器，
github 上 star 上千的也看了一遍，基本都是 electron，qt，
还有基于 epub.js 搞的纯网页阅读器，试了一圈都不太满意
最后想起来微信读书似乎可以自己传书了，就试了一下，发现真不错
不过欲扬先抑，先来说说缺点吧：
- 有网才能用
- 登录需要扫码
- 隐私没有保障
- 排版样式丢失，会变成微信阅读的样式
再来说说优点：
- 常见的电子书格式都支持，txt，epub，pdf，mobi。。。
- 可以加书签，高亮，做笔记，搜索全书
- 云同步，电脑、平板、手机无缝衔接（这个是真的爽
- 纯网页，无需安装，还能用css，油猴脚本增强阅读体验
- 自带丰富的电子书资源
- 免费（当然如果看里面的付费书还是得充钱的
最后分享一下我自己用的油猴脚本：
// ==UserScript==
// @name 微信读书优化整合
// @version 0.3
// @namespace whatever
// @description 修改字体，更改背景颜色，增减页面宽度，上划隐藏头部侧栏，代码复制与图片下载
// @contributor SimonDW;Li_MIxdown;hubzy;xvusrmqj;LossJ;JackieZheng;das2m;harmonyLife
// @author greasy-su
// @match https://weread.qq.com/web/reader/*
// @icon https://weread.qq.com/favicon.ico
// @grant GM_addStyle
// @grant unsafeWindow
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_setClipboard
// ==/UserScript==
// 参考：https://greasyfork.org/zh-CN/scripts/421994-%E5%BE%AE%E4%BF%A1%E8%AF%BB%E4%B9%A6%E7%BD%91%E9%A1%B5%E7%89%88%E5%8A%9F%E8%83%BD%E7%BB%BC%E5%90%88
// 移除 jquery 依赖与一些个人不需要的功能
'use strict';
// 自动隐藏标题栏
const autoHideTopbar = false;
// 字体
const font = "微软雅黑";
// 字体大小
const fontSize = "15px";
// 字体粗细
const fontWeight = "400"
// 字体颜色
const fontColor = "#233";
// 代码字体
const codeFont = "consolas";
// 代码字体大小
const codeFontSize = "14px";
// 代码字体颜色
const codeFontColor = "#233";
// 网页背景
const bodyBg = "#e0d9c6";
// 标题栏背景
const topBarBg = "#d0c9b6";
// 正文背景
const contentBg = "#faf0e4";
const maxWaitTime = 3000;
const $ = s=>document.querySelector(s);
const $$ = s=>document.querySelectorAll(s);
const style = `
*{
font-family: "${font}" !important;
font-size: ${fontSize} !important;
font-weight: ${fontWeight} !important;
}
pre,
code{
font-family: "${codeFont}", "${font}" !important;
font-size: ${codeFontSize}!important;
color: ${codeFontColor}!important;
}
.readerCatalog,
.readerNotePanel{
right: 0 !important;
left: unset !important;
}
.readerTopBar{
height: unset !important;
}
.readerTopBar,
.bookInfo_title,
.readerTopBar_title_link,
.readerTopBar_title_chapter{
font-family: SourceHanSerifCN-Bold !important;
}
.readerTopBar_title_link{
font-weight:bold !important;
}
body.wr_whiteTheme{
background-color: ${bodyBg} !important;
}
.wr_whiteTheme .readerTopBar{
background-color: ${topBarBg} !important;
}
.wr_whiteTheme .renderTargetContainer .renderTargetContent .wr_readerImage_opacity,
.wr_whiteTheme .renderTargetContainer .renderTargetContent .wr_readerBackground_opacity,
.wr_whiteTheme .readerContent .app_content {
background-color: ${contentBg}!important;
}
.wr_whiteTheme .app_content{
box-shadow: 0 0 3px 1px #8888;
}
.readerChapterContent{
color: ${fontColor}!important;
}
.readerControls{
margin-left: 25% !important;
padding-left: 20%;
margin-bottom: -28px !important;
}
.readerControls{
opacity: 0;
transition-delay: 1s;
}
.readerControls:hover{
opacity: 1;
transition-delay: 0s;
}
button.readerControls_item,
div.readerControls_fontSize{
cursor: pointer!important;
box-shadow: 0 0 5px 1px #8888!important;
}
.readerControls_item.download{
display: none;
}
`;
GM_addStyle(style);
window.onload = function(){
function getElmAync(selector){
return new Promise(resolve=>{
let t = maxWaitTime;
const gap = 100;
const itv = setInterval(()=>{
t -= gap;
let elm = $$(selector);
if(elm.length > 0){
clearInterval(itv);
resolve(elm);
}
if(t <= 0){
clearInterval(itv);
resolve(null);
}
}, gap);
});
}
// add btn to pre
async function addCopyBtn(){
let preCollection = await getElmAync('pre');
let hasBtn = $('.copy-btn') ? true : false;
let btnHtml = `<button class="copy-code" style="position: absolute;right: 0;top: 0;color:white;cursor:pointer;z-index:99999;">📋</button>`;
if(preCollection !== null && !hasBtn){
for(let pre of preCollection){
pre.innerHTML += btnHtml;
}
}
}
addCopyBtn();
const observer = new MutationObserver(addCopyBtn);
const appContent = $('.app_content');
observer.observe(appContent, {childList: true});
document.body.addEventListener('click', ev=>{
console.log(ev.target);
if(ev.target.classList.contains('copy-code')){
let code = ev.target.parentElement.textContent.replace('📋', '');
GM_setClipboard(code);
alert('code copied.');
}
});
// change page width
function getCurrentMaxWidth(element) {
let currentValue = window.getComputedStyle(element).maxWidth;
currentValue = currentValue.substring(0, currentValue.indexOf('px'));
currentValue = parseInt(currentValue);
return currentValue;
}
function setWidth(width) {
const item1 = $(".readerContent .app_content");
const item2 = $('.readerTopBar');
item1.style['max-width'] = width + 'px';
item2.style['max-width'] = width + 'px';
const myEvent = new Event('resize');
window.dispatchEvent(myEvent);
// fix: btn disappear after resizing
setTimeout(addCopyBtn, 3000);
}
function addWidth(increment){
const width = getCurrentMaxWidth($('.readerContent .app_content')) + increment;
setWidth(width);
GM_setValue('width', width);
}
let btnHTML = `
<button class="readerControls_item widthIncrease" style="color:#6a6c6c;cursor:pointer;">宽</button>
<button class="readerControls_item widthDecrease" style="color:#6a6c6c;cursor:pointer;">窄</button>
`;
let btnContainer = document.createElement('div');
btnContainer.innerHTML = btnHTML;
$('.readerControls').append(btnContainer.children[0], btnContainer.children[1]);
$('.widthIncrease').addEventListener('click', () => addWidth(100));
$('.widthDecrease').addEventListener('click', () => addWidth(-100));
let width = GM_getValue('width', -1);
if(width !== -1){
setWidth(width);
}
// auto hide topbar
if(autoHideTopbar){
let prevPos = 0;
let topBar = $('.readerTopBar');
let timer = -1;
window.addEventListener('scroll', ev=>{
if(timer !== -1) return;
timer = setTimeout(()=>{
let pos = document.documentElement.scrollTop || document.body.scrollTop;
topBar.style.opacity = pos > prevPos ? '0' : '1';
prevPos = pos;
timer = -1;
}, 300);
});
}
}