1. 引用方式：
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://apps.bdimg.com/libs/jquery-qrcode/1.0.0/jquery.qrcode.min.js"></script>
2. 使用方式：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1,user-scalable=no"> <meta name="format-detection" content="telephone=no"> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://apps.bdimg.com/libs/jquery-qrcode/1.0.0/jquery.qrcode.min.js"></script> <title></title> </head> <body> <div id="qrcode"></div> <script type="text/javascript"> $('#qrcode').qrcode({ render: "canvas", //默认配置，可以为空也可以替换为table "250", //设置宽度 height: "250", //设置高度 foreground: "#C00", //二维码颜色 background: "#FFF", //背景色 text: 'https://www.cnblogs.com/xyyt', //二维码内容 }); </script> </body> </html>
3. 微信中识别二维码——转换为图片格式：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1,user-scalable=no"> <meta name="format-detection" content="telephone=no"> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://apps.bdimg.com/libs/jquery-qrcode/1.0.0/jquery.qrcode.min.js"></script> <title></title> </head> <body> <div id="qrcode"></div> <img id="qrcodeImg"/> <script type="text/javascript"> var qrcode = $('#qrcode').qrcode({ render: "canvas", //默认配置，可以为空也可以替换为table "250", //设置宽度 height: "250", //设置高度 foreground: "#C00", //二维码颜色 background: "#FFF", //背景色 text: 'https://www.cnblogs.com/xyyt', //二维码内容 }).hide(); //将生成的二维码转换成图片格式 var canvas = qrcode.find('canvas').get(0); $('#qrcodeImg').attr('src', canvas.toDataURL('image/jpg')); </script> </body> </html>
4. 生成中文：
<div id="chinese_qrcode"></div> <script> $(function() { function utf16to8(str) { var out, i, len, c; out = ""; len = str.length; for(i = 0; i < len; i++) { c = str.charCodeAt(i); if((c >= 0x0001) && (c <= 0x007F)) { out += str.charAt(i); } else if(c > 0x07FF) { out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F)); out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F)); } else { out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F)); } } return out; } jQuery("#chinese_qrcode").qrcode(utf16to8("中文中文")); //使用encodeURI进行转码 }) </script>