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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>二维码生成与解析工具</title>
<!-- 依赖 -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://unpkg.com/qr-code-styling@1.5.0/lib/qr-code-styling.js"></script>
<script src="https://unpkg.com/jsqr/dist/jsQR.js"></script>
<!-- 把 SVG 渲染到 canvas 用 -->
<script src="https://cdn.jsdelivr.net/npm/canvg@3.0.7/lib/umd.min.js"></script>
<style>
/* ================= 主题变量（日间默认） ================= */
:root{
--accent:#0066ff;
--accent-hover:#0050e0;
--accent-active:#003fbd;
--secondary:#7d8597;
--danger:#e15f5f;
--success:#11a066;
--border:#d3d7de;
--bg:#ffffff;
--bg-alt:#f3f6fa;
--text:#1f2329;
--control-h:42px;
}
/* ================= 夜间主题 ================= */
.dark{
--accent:#4f8dff;
--accent-hover:#3d7cff;
--accent-active:#2c6fff;
--secondary:#858fa5;
--danger:#ff6c6c;
--success:#26c58d;
--border:#3d3f45;
--bg:#1e1e20;
--bg-alt:#2b2d31;
--text:#e7e9ed;
}
/* ================= 通用样式 ================= */
*{box-sizing:border-box}
html,body{
margin:0;padding:0;
font-family:Poppins,Arial,Helvetica,sans-serif;
background:var(--bg);color:var(--text);
transition:background .25s,color .25s;
}
h1{font-weight:600;margin:1.4rem 0;text-align:center}
button,
input[type="text"],
input[type="number"],
select{
height:var(--control-h);
line-height:calc(var(--control-h) - 2px);
font-size:1rem;
border-radius:6px;
transition:background .2s,border .2s,color .2s;
}
/* -------- 顶栏与切换按钮 -------- */
.topbar{
max-width:1200px;margin:0 auto;padding:0 .8rem;
display:flex;justify-content:flex-end;align-items:center;
}
#themeToggle{
cursor:pointer;font-size:1.35rem;user-select:none;
width:46px;height:46px;display:flex;align-items:center;justify-content:center;
border:1px solid var(--border);border-radius:50%;background:var(--bg-alt);
transition:.2s;
}
#themeToggle:hover{background:var(--accent);color:#fff}
/* -------- Tabs -------- */
.tabs{
display:flex;justify-content:center;gap:1rem;margin:1.2rem 0 1.5rem;
}
.tab{
padding:.6rem 1.8rem;border:1px solid var(--border);background:var(--bg-alt);
cursor:pointer;border-radius:8px 8px 0 0;user-select:none;transition:.15s;
}
.tab.active{background:var(--bg);border-bottom-color:var(--bg);font-weight:600}
/* -------- 卡片、布局 -------- */
.card{
max-width:1200px;margin:0 auto;background:var(--bg);
border:1px solid var(--border);border-radius:12px;padding:2rem;display:none;
transition:background .25s,border .25s;
}
.card.show{display:block}
.flex{display:flex;flex-wrap:wrap;gap:2rem}
.left-panel{flex:1 1 360px;min-width:280px}
.right-panel{flex:1 1 320px;display:flex;flex-direction:column;align-items:center;gap:1rem}
/* -------- 表单行 -------- */
.form-item{
display:flex;align-items:center;gap:.8rem;margin-bottom:1rem;flex-wrap:wrap;
}
.form-item label{
width:120px;min-width:120px;font-size:.9rem;font-weight:500;
}
.form-item>*:not(label){flex:1}
input[type="text"],input[type="number"],select{
width:100%;padding:0 .8rem;border:1px solid var(--border);
background:var(--bg-alt);color:var(--text);
}
input[type="text"]:focus,input[type="number"]:focus,select:focus{
border-color:var(--accent);outline:none;
}
input[type="color"]{
padding:0;width:48px;height:var(--control-h);
border:1px solid var(--border);border-radius:6px;cursor:pointer;
}
/* -------- 按钮 -------- */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:0 1.6rem;border:none;cursor:pointer;font-weight:500}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-primary:active{background:var(--accent-active)}
.btn-secondary{background:var(--secondary);color:#fff}
.btn-secondary:hover{filter:brightness(1.1)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{filter:brightness(1.1)}
.btn-disabled{opacity:.5;cursor:not-allowed}
#downloadBtn{width:200px; display:none;}
#downloadBtn.show{display:block}
/* -------- 自定义文件上传 -------- */
.file-wrap{position:relative;display:inline-block;width:100%}
.file-wrap input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}
/* ================= 解析区增强 ================= */
.parse-flex{display:flex;flex-wrap:wrap;gap:2rem}
.parse-left{flex:1 1 260px;min-width:240px}
.parse-right{flex:2 1 380px;min-width:260px;display:flex;flex-direction:column;gap:1rem}
#dropZone{
border:2px dashed var(--border);padding:2.5rem 1rem;text-align:center;
border-radius:12px;background:var(--bg-alt);cursor:pointer;transition:.15s;
}
#dropZone.dragover{background:rgba(0,102,255,.08)}
#dropZone img{max-width:100%;max-height:160px;border-radius:8px;margin-top:.8rem}
#parsedResultBox{
display:flex;flex-direction:column;gap:.6rem
}
#parsedResult{
width:100%;height:150px;resize:vertical;border:1px solid var(--border);
border-radius:8px;padding:.6rem;font-size:.9rem;background:var(--bg-alt);
color:var(--text);
}
#parsedResult.success{border-color:var(--success)}
#parsedResult.fail{border-color:var(--danger)}
.result-actions{display:flex;gap:.8rem}
footer{margin:2rem 0;text-align:center;font-size:.85rem;color:#8b8f97}
/* 让生成的二维码四周有外边框（不是二维码本身的 margin） */
#qrcode canvas,
#qrcode img,
#qrcode svg{
border:4px solid var(--border);
border-radius:8px;
}
/* -------- 预览蒙层 -------- */
.preview-wrap{position:relative;display:inline-block}
#qrMask{
position:absolute;inset:0;
background:rgba(0,0,0,.55);
display:flex;align-items:center;justify-content:center;
color:#fff;font-size:1rem;text-align:center;
padding:0 1rem;border-radius:8px;
pointer-events:none;
opacity:0;transition:opacity .2s;
}
#qrMask.show{opacity:1;}
</style>
</head>
<body>
<!-- 顶部切换按钮 -->
<div class="topbar">
<div id="themeToggle" title="切换主题">🌙</div>
</div>
<h1>二维码生成与解析工具</h1>
<!-- Tabs -->
<div class="tabs">
<div class="tab active" data-panel="generate">生成二维码</div>
<div class="tab" data-panel="parse">解析二维码</div>
</div>
<!-- 生成卡片 -->
<div class="card show" id="generateCard">
<div class="flex">
<!-- 左侧配置 -->
<div class="left-panel">
<div class="form-item">
<label>二维码内容</label>
<input type="text" id="qrText" placeholder="请输入要编码的文本/链接">
</div>
<div class="form-item">
<label>尺寸 (px)</label>
<input type="number" id="qrSize" value="300" min="150" max="500">
</div>
<div class="form-item">
<label>容错等级</label>
<select id="qrEcc">
<option>L (7%)</option>
<option selected>M (15%)</option>
<option>Q (25%)</option>
<option>H (30%)</option>
</select>
</div>
<div class="form-item">
<label>点阵形状</label>
<select id="qrDotType">
<option value="square">square</option>
<option value="dots">dots</option>
<option value="rounded">rounded</option>
<option value="extra-rounded">extra-rounded</option>
</select>
<input type="color" id="qrDotColor" value="#000000">
</div>
<div class="form-item">
<label>背景颜色</label>
<input type="color" id="qrBgColor" value="#ffffff">
</div>
<div class="form-item">
<label>定位角(外)</label>
<select id="qrCornerSquareType">
<option value="square">square</option>
<option value="extra-rounded">extra-rounded</option>
</select>
<input type="color" id="qrCornerSquareColor" value="#000000">
</div>
<div class="form-item">
<label>定位角(内)</label>
<select id="qrCornerDotType">
<option value="square">square</option>
<option value="dots">dots</option>
<option value="rounded">rounded</option>
</select>
<input type="color" id="qrCornerDotColor" value="#000000">
</div>
<div class="form-item">
<label>Logo</label>
<span class="file-wrap">
<button class="btn btn-secondary" style="width:100%">选择 Logo 图片</button>
<input type="file" id="logoInput" accept="image/*">
</span>
<button id="removeLogo" class="btn btn-danger" style="flex:0 0 110px">移除</button>
</div>
<div style="text-align:right;margin-top:1.2rem">
<button id="generateBtn" class="btn btn-primary" style="width:160px">生成 / 更新</button>
</div>
</div>
<!-- 右侧预览 -->
<div class="right-panel">
<div class="preview-wrap">
<div id="qrcode"></div>
<div id="qrMask">请输入生成二维码内容</div>
</div>
<button id="downloadBtn" class="btn btn-primary">下载 PNG</button>
</div>
</div>
</div>
<!-- 解析卡片 -->
<div class="card" id="parseCard">
<div class="parse-flex">
<!-- 上传区 -->
<div class="parse-left">
<div id="dropZone">
<svg width="70" height="70" fill="none" stroke="currentColor" stroke-width="2"
stroke-linecap="round" stroke-linejoin="round" style="opacity:.6">
<path d="M21 16l4-4 4 4M25 12v9"/>
<rect x="3" y="3" width="18" height="18" rx="2" ry="2"/>
<path d="M16 5h6a2 2 0 0 1 2 2v6M3 10h18M10 3v18"/>
</svg>
<p style="margin:.8rem 0 0">点击或拖拽二维码图片到此 (支持 SVG)</p>
<input type="file" id="fileInput" accept="image/*,.svg" style="display:none">
</div>
</div>
<!-- 结果区 -->
<div class="parse-right">
<div id="parsedResultBox">
<textarea id="parsedResult" placeholder="解析结果将显示在此处" readonly></textarea>
<div class="result-actions">
<button id="copyBtn" class="btn btn-secondary btn-disabled" disabled>复制</button>
<button id="downloadTxtBtn" class="btn btn-primary btn-disabled" disabled>下载 TXT</button>
</div>
</div>
</div>
</div>
<canvas id="canvas" style="display:none"></canvas>
</div>
<footer>Made with ❤️ by me</footer>
<script>
$(function(){
/* ============ 主题切换 ============ */
const toggleBtn = $('#themeToggle');
const rootEl = $('html');
const THEME_KEY = 'qr_theme';
if(localStorage.getItem(THEME_KEY)==='dark'){
rootEl.addClass('dark'); toggleBtn.text('☀️');
}
toggleBtn.on('click',function(){
rootEl.toggleClass('dark');
const isDark=rootEl.hasClass('dark');
toggleBtn.text(isDark?'☀️':'🌙');
localStorage.setItem(THEME_KEY,isDark?'dark':'light');
});
/* ============ TAB 切换 ============ */
$('.tab').on('click',function(){
$('.tab').removeClass('active'); $(this).addClass('active');
const panel=$(this).data('panel');
$('#generateCard').toggleClass('show',panel==='generate');
$('#parseCard').toggleClass('show',panel==='parse');
});
/* ============ 初始化二维码对象 ============ */
const BORDER_MARGIN = 20; // 四周空白
let qrCode = new QRCodeStyling({
width:300,height:300,
margin:BORDER_MARGIN,
data:" ",
qrOptions:{errorCorrectionLevel:"M"},
dotsOptions:{type:"square",color:"#000"},
backgroundOptions:{color:"#ffffff"},
cornersSquareOptions:{type:"square",color:"#000"},
cornersDotOptions:{type:"square",color:"#000"}
});
qrCode.append(document.getElementById('qrcode'));
/* ============ 更新二维码 ============ */
function updateQRCode(){
const text = $('#qrText').val().trim();
const empty = text === "";
const size = +$('#qrSize').val()||300;
qrCode.update({
width:size,
height:size,
margin:BORDER_MARGIN,
data: empty ? " " : text,
qrOptions:{errorCorrectionLevel:$('#qrEcc').val().charAt(0)},
dotsOptions:{type:$('#qrDotType').val(),color:$('#qrDotColor').val()},
backgroundOptions:{color:$('#qrBgColor').val()},
cornersSquareOptions:{type:$('#qrCornerSquareType').val(),color:$('#qrCornerSquareColor').val()},
cornersDotOptions:{type:$('#qrCornerDotType').val(),color:$('#qrCornerDotColor').val()}
});
// 显/隐蒙层
$('#qrMask').toggleClass('show', empty);
$('#downloadBtn').toggleClass('show', !empty);
}
$('#generateBtn').on('click',updateQRCode);
$('.left-panel').on('change keyup','input:not(#logoInput):not([type=file]),select',updateQRCode);
/* ============ Logo 处理 ============ */
$('#logoInput').on('change',function(e){
const file=e.target.files[0]; if(!file) return;
const reader=new FileReader();
reader.onload=ev=>qrCode.update({image:ev.target.result,imageOptions:{margin:6}});
reader.readAsDataURL(file);
});
$('#removeLogo').click(()=>{qrCode.update({image:""});$('#logoInput').val('');});
/* ============ 下载二维码 ============ */
$('#downloadBtn').click(()=>qrCode.download({name:"qrcode",extension:"png"}));
/* ============ 解析端 ============ */
const dropZone = document.getElementById('dropZone');
const fileInput = document.getElementById('fileInput');
const resultArea = $('#parsedResult');
const copyBtn = $('#copyBtn');
const downloadTxtBtn= $('#downloadTxtBtn');
dropZone.addEventListener('click',()=>fileInput.click());
['dragenter','dragover'].forEach(evt=>
dropZone.addEventListener(evt,e=>{e.preventDefault();dropZone.classList.add('dragover');})
);
['dragleave','drop'].forEach(evt=>
dropZone.addEventListener(evt,e=>{e.preventDefault();dropZone.classList.remove('dragover');})
);
dropZone.addEventListener('drop',e=>{
const f=e.dataTransfer.files[0];
if(f) handleFile(f);
});
fileInput.addEventListener('change',e=>{
const f=e.target.files[0];
if(f) handleFile(f);
});
/* 统一处理 SVG / 位图 */
function handleFile(file){
const reader=new FileReader();
/* SVG */
if(file.type==='image/svg+xml' || file.name.toLowerCase().endsWith('.svg')){
reader.readAsText(file);
reader.onload=e=>{
const svgText=e.target.result;
showThumbnail('data:image/svg+xml;base64,'+btoa(unescape(encodeURIComponent(svgText))));
const cvs=document.getElementById('canvas');
const ctx=cvs.getContext('2d');
const wMatch=svgText.match(/width="([\d.]+)"/);
const hMatch=svgText.match(/height="([\d.]+)"/);
const width =wMatch?parseFloat(wMatch[1]):1024;
const height=hMatch?parseFloat(hMatch[1]):1024;
cvs.width=width;cvs.height=height;
canvg.Canvg.fromString(ctx,svgText).render().then(()=>parseCanvas());
};
}
/* 位图 */
else{
reader.readAsDataURL(file);
reader.onload=e=>{
showThumbnail(e.target.result);
const img=new Image();
img.onload=()=>{
const cvs=document.getElementById('canvas');
const ctx=cvs.getContext('2d');
cvs.width=img.width;cvs.height=img.height;
ctx.drawImage(img,0,0);
parseCanvas();
};
img.src=e.target.result;
};
}
}
/* 从 canvas 解析二维码 */
function parseCanvas(){
const cvs=document.getElementById('canvas');
const ctx=cvs.getContext('2d');
const id=ctx.getImageData(0,0,cvs.width,cvs.height);
const code=jsQR(id.data,cvs.width,cvs.height);
if(code){
resultArea.val(code.data).removeClass('fail').addClass('success');
enableResultBtns(true);
}else{
resultArea.val('未识别二维码').removeClass('success').addClass('fail');
enableResultBtns(false);
}
}
/* 缩略图展示 */
function showThumbnail(src){
const old=document.querySelector('#dropZone img');
old&&old.remove();
const img=document.createElement('img');
img.src=src;
dropZone.appendChild(img);
}
/* 复制 / 下载按钮状态 */
function enableResultBtns(enable){
copyBtn.prop('disabled',!enable).toggleClass('btn-disabled',!enable);
downloadTxtBtn.prop('disabled',!enable).toggleClass('btn-disabled',!enable);
}
/* 复制到剪贴板 */
copyBtn.on('click',function(){
const text=resultArea.val();
if(!text) return;
navigator.clipboard ? navigator.clipboard.writeText(text)
.then(()=>toast('已复制')) : fallbackCopy(text);
});
function fallbackCopy(text){
const temp=document.createElement('textarea');
temp.value=text;document.body.appendChild(temp);
temp.select();document.execCommand('copy');document.body.removeChild(temp);
toast('已复制');
}
/* 下载 TXT */
downloadTxtBtn.on('click',function(){
const text=resultArea.val();
if(!text) return;
const blob=new Blob([text],{type:'text/plain'});
const a=document.createElement('a');
const ts=new Date().toISOString().replace(/[:T]/g,'-').split('.')[0];
a.href=URL.createObjectURL(blob);
a.download='qr-result-'+ts+'.txt';
document.body.appendChild(a);
a.click();document.body.removeChild(a);
URL.revokeObjectURL(a.href);
});
/* Toast 提示 */
function toast(msg){
const div=$('<div>').text(msg).css({
position:'fixed',top:'20px',right:'20px',padding:'10px 16px',
background:'var(--accent)',color:'#fff',borderRadius:'6px',zIndex:9999,
boxShadow:'0 4px 12px rgba(0,0,0,.15)',opacity:0
});
$('body').append(div);
div.animate({opacity:1},200).delay(1200).animate({opacity:0},300,()=>div.remove());
}
/* 初始化状态 */
enableResultBtns(false);
updateQRCode(); // 首次调用以显示蒙层
});
</script>
</body>
</html>