html中直接使用
/**
* Skipped minification because the original files appears to be already minified.
* Original file: /npm/qrcode@1.5.1/build/qrcode.js
*
* Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files
*/
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Uint8Array(n),C=0;for(A=0;A<w;A++)for(N=0;N<u;N++)A<v[N].length&&(B[C++]=v[N][A]);for(A=0;A<g;A++)for(N=0;N<u;N++)B[C++]=p[N][A];return B}(n,t,r)}function it(t,r,e,n){var a;if(Array.isArray(t))a=nt.fromArray(t);else{if("string"!=typeof t)throw new Error("Invalid data");var i=r;if(!i){var u=nt.rawSplit(t);i=O.getBestVersionForData(u,e)}a=nt.fromString(t,i||40)}var s=O.getBestVersionForData(a,e);if(!s)throw new Error("The amount of data is too big to be stored in a QR Code");if(r){if(r<s)throw new Error("\nThe chosen QR Code version cannot contain this amount of data.\nMinimum version required to store current data is: "+s+".\n")}else r=s;var f=at(r,e,a),h=o(r),c=new v(h);return function(t,r){for(var e=t.size,n=m(r),o=0;o<n.length;o++)for(var a=n[o][0],i=n[o][1],u=-1;u<=7;u++)if(!(a+u<=-1||e<=a+u))for(var s=-1;s<=7;s++)i+s<=-1||e<=i+s||(u>=0&&u<=6&&(0===s||6===s)||s>=0&&s<=6&&(0===u||6===u)||u>=2&&u<=4&&s>=2&&s<=4?t.set(a+u,i+s,!0,!0):t.set(a+u,i+s,!1,!0))}(c,r),function(t){for(var r=t.size,e=8;e<r-8;e++){var n=e%2==0;t.set(e,6,n,!0),t.set(6,e,n,!0)}}(c),function(t,r){for(var e=p.getPositions(r),n=0;n<e.length;n++)for(var o=e[n][0],a=e[n][1],i=-2;i<=2;i++)for(var u=-2;u<=2;u++)-2===i||2===i||-2===u||2===u||0===i&&0===u?t.set(o+i,a+u,!0,!0):t.set(o+i,a+u,!1,!0)}(c,r),ot(c,e,0),r>=7&&function(t,r){for(var e,n,o,a=t.size,i=O.getEncodedBits(r),u=0;u<18;u++)e=Math.floor(u/3),n=u%3+a-8-3,o=1==(i>>u&1),t.set(e,n,o,!0),t.set(n,e,o,!0)}(c,r),function(t,r){for(var e=t.size,n=-1,o=e-1,a=7,i=0,u=e-1;u>0;u-=2)for(6===u&&u--;;){for(var s=0;s<2;s++)if(!t.isReserved(o,u-s)){var f=!1;i<r.length&&(f=1==(r[i]>>>a&1)),t.set(o,u-s,f),-1===--a&&(i++,a=7)}if((o+=n)<0||e<=o){o-=n,n=-n;break}}}(c,f),isNaN(n)&&(n=E.getBestMask(c,ot.bind(null,c,e))),E.applyMask(n,c),ot(c,e,n),{modules:c,version:r,errorCorrectionLevel:e,maskPattern:n,segments:a}}nt.fromArray,nt.fromString,nt.rawSplit;var ut=function(t,r){if(void 0===t||""===t)throw new Error("No input text");var e,n,o=c.M;return void 0!==r&&(o=c.from(r.errorCorrectionLevel,c.M),e=O.from(r.version),n=E.from(r.maskPattern),r.toSJISFunc&&u(r.toSJISFunc)),it(t,e,o,n)},st=h((function(t,r){function e(t){if("number"==typeof t&&(t=t.toString()),"string"!=typeof t)throw new Error("Color should be defined as hex string");var r=t.slice().replace("#","").split("");if(r.length<3||5===r.length||r.length>8)throw new Error("Invalid hex color: "+t);3!==r.length&&4!==r.length||(r=Array.prototype.concat.apply([],r.map((function(t){return[t,t]})))),6===r.length&&r.push("F","F");var e=parseInt(r.join(""),16);return{r:e>>24&255,g:e>>16&255,b:e>>8&255,a:255&e,hex:"#"+r.slice(0,6).join("")}}r.getOptions=function(t){t||(t={}),t.color||(t.color={});var r=void 0===t.margin||null===t.margin||t.margin<0?4:t.margin,n=t.width&&t.width>=21?t.width:void 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n="",o=0,a=!1,i=0,u=0;u<t.length;u++){var s=Math.floor(u%r),f=Math.floor(u/r);s||a||(a=!0),t[u]?(i++,u>0&&s>0&&t[u-1]||(n+=a?ct("M",s+e,.5+f+e):ct("m",o,0),o=0,a=!1),s+1<r&&t[u+1]||(n+=ct("h",i),i=0)):o++}return n}(a,o,n.margin)+'"/>',f='viewBox="0 0 '+i+" "+i+'"',h='<svg xmlns="http://www.w3.org/2000/svg" '+(n.width?'width="'+n.width+'" height="'+n.width+'" ':"")+f+' shape-rendering="crispEdges">'+u+s+"</svg>\n";return"function"==typeof e&&e(null,h),h};function dt(t,r,n,o,a){var i=[].slice.call(arguments,1),u=i.length,s="function"==typeof i[u-1];if(!s&&!e())throw new Error("Callback required as last argument");if(!s){if(u<1)throw new Error("Too few arguments provided");return 1===u?(n=r,r=o=void 0):2!==u||r.getContext||(o=n,n=r,r=void 0),new Promise((function(e,a){try{var i=ut(n,o);e(t(i,r,o))}catch(t){a(t)}}))}if(u<2)throw new Error("Too few arguments provided");2===u?(a=n,n=r,r=o=void 0):3===u&&(r.getContext&&void 0===a?(a=o,o=void 0):(a=o,o=n,n=r,r=void 0));try{var f=ut(n,o);a(null,t(f,r,o))}catch(t){a(t)}}var lt=ut,vt=dt.bind(null,ft.render),pt=dt.bind(null,ft.renderToDataURL),wt=dt.bind(null,(function(t,r,e){return gt(t,e)})),mt={create:lt,toCanvas:vt,toDataURL:pt,toString:wt};return t.create=lt,t.default=mt,t.toCanvas=vt,t.toDataURL=pt,t.toString=wt,Object.defineProperty(t,"__esModule",{value:!0}),t}({});<script>
QRCode.toDataURL(
"https://www.baidu.com/",
{ errorCorrectionLevel: "H" },
function (err, url) {
console.log("QRCode", url);
}
);
</script>工程化项目中使用
安装
npm i qrcode
引入
import QRCode from "qrcode"; //引入
使用
qrcodeUrl= await QRCode.toDataURL(
"https://www.baidu.com"
);
