jQuery.qrCode.js实现二维码生成

来源：互联网发布：计数排序java实现编辑：程序博客网时间：2024/06/02 17:05
代码如下:
<!DOCTYPE html><html><head><title>basic example</title></head><style type="text/css">*{margin:0;padding:0;font-family:微软雅黑;}#qrcode{border:1px solid #AFAFAF;width:200px;height:200px}</style><body><script src="../jQuery/jquery-1.9.1.min.js" type="text/javascript"></script><script type="text/javascript" src="../jQuery/jquery.qrcode.js"></script><script type="text/javascript" src="../jQuery/qrcode.js"></script><p>Render in canvas</p><div id="qrcode"></div><script>//中文乱码,将UTF-16转换为UTF-8,UTF-16长度为2位,UTF-8为3位String.prototype.toUTF8=function(){var result = ""; //转码后的结果for(var i=0,maxLen=this.length;i<maxLen;i++) {var t = this.charCodeAt(i);if( (t >= 0x0001) && (t <= 0x007F)) {result +=  this.charAt(i);} else if (t > 0x07FF) {  result += String.fromCharCode(0xE0 | ((t >> 12) & 0x0F));  result += String.fromCharCode(0x80 | ((t >>  6) & 0x3F));  result += String.fromCharCode(0x80 | ((t >>  0) & 0x3F));  } else {  result += String.fromCharCode(0xC0 | ((t >>  6) & 0x1F));  result += String.fromCharCode(0x80 | ((t >>  0) & 0x3F));  }  }return result;}jQuery('#qrcode').qrcode({render : "canvas" , //渲染方式:还可以为table方式width : 200,  //生成二维码的宽度height : 200, //生成二维码的高度typeNumber : -1, //计算方式correctLevel : QRErrorCorrectLevel.H,//纠错等级background : "#FFFFFF", //背景色foreground : "#3399CC", //前景色text: "许增强".toUTF8() //会乱码});</script></body></html>
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