qrcode.js 是實現二維碼數據計算的核心類,javascript
jquery.qrcode.js 是把它用jquery方式封裝起來的,用它來實現圖形渲染,其實就是畫圖(支持canvas和table兩種方式)java
方法的參數說明jquery
使用起來比較方便,簡單。git
關於中文的問題解決以下:github
對於須要生成的文本信息進行編碼。canvas
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; }