js文件 qrcode.js 代碼

/*from tccdn minify at 2014-6-4 14:59:43,file：/cn/c/c/qrcode.js*/ /*** @fileoverview* - Using the 'QRCode for Javascript library'* - Fixed dataset of 'QRCode for Javascript library' for support full-spec.* - this library has no dependencies.* * @author davidshimjs* @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>* @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>*/ var QRCode;(function () {//---------------------------------------------------------------------// QRCode for JavaScript//// Copyright (c) 2009 Kazuhiko Arase//// URL: http://www.d-project.com///// Licensed under the MIT license:// http://www.opensource.org/licenses/mit-license.php//// The word "QR Code" is registered trademark of // DENSO WAVE INCORPORATED// http://www.denso-wave.com/qrcode/faqpatent-e.html////---------------------------------------------------------------------function QR8bitByte(data) {this.mode = QRMode.MODE_8BIT_BYTE;this.data = data;this.parsedData = [];// Added to support UTF-8 Charactersfor (var i = 0, l = this.data.length; i < l; i++) {var byteArray = [];var code = this.data.charCodeAt(i);if (code > 0x10000) {byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);byteArray[3] = 0x80 | (code & 0x3F);} else if (code > 0x800) {byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);byteArray[2] = 0x80 | (code & 0x3F);} else if (code > 0x80) {byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);byteArray[1] = 0x80 | (code & 0x3F);} else {byteArray[0] = code;}this.parsedData.push(byteArray);}this.parsedData = Array.prototype.concat.apply([], this.parsedData);if (this.parsedData.length != this.data.length) {this.parsedData.unshift(191);this.parsedData.unshift(187);this.parsedData.unshift(239);}}QR8bitByte.prototype = {getLength: function (buffer) {return this.parsedData.length;},write: function (buffer) {for (var i = 0, l = this.parsedData.length; i < l; i++) {buffer.put(this.parsedData[i], 8);}}};function QRCodeModel(typeNumber, errorCorrectLevel) {this.typeNumber = typeNumber;this.errorCorrectLevel = errorCorrectLevel;this.modules = null;this.moduleCount = 0;this.dataCache = null;this.dataList = [];}function QRPolynomial(num, shift) {if (num.length == undefined) throw new Error(num.length + "/" + shift);var offset = 0;while (offset < num.length && num[offset] == 0) offset++;this.num = new Array(num.length - offset + shift);for (var i = 0; i < num.length - offset; i++) this.num[i] = num[i + offset]; }function QRRSBlock(totalCount, dataCount) {this.totalCount = totalCount, this.dataCount = dataCount; }function QRBitBuffer() {this.buffer = [], this.length = 0; }QRCodeModel.prototype = {"addData": function(data) {var newData = new QR8bitByte(data);this.dataList.push(newData), this.dataCache = null;},"isDark": function(row, col) {if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) throw new Error(row + "," + col);return this.modules[row][col];},"getModuleCount": function() {return this.moduleCount;},"make": function() {this.makeImpl(!1, this.getBestMaskPattern());},"makeImpl": function(test, maskPattern) {this.moduleCount = this.typeNumber * 4 + 17, this.modules = new Array(this.moduleCount);for (var row = 0; row < this.moduleCount; row++) {this.modules[row] = new Array(this.moduleCount);for (var col = 0; col < this.moduleCount; col++) this.modules[row][col] = null;}this.setupPositionProbePattern(0, 0),this.setupPositionProbePattern(this.moduleCount - 7, 0),this.setupPositionProbePattern(0, this.moduleCount - 7),this.setupPositionAdjustPattern(), this.setupTimingPattern(),this.setupTypeInfo(test, maskPattern),this.typeNumber >= 7 && this.setupTypeNumber(test),this.dataCache == null && (this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)), this.mapData(this.dataCache, maskPattern);},"setupPositionProbePattern": function(row, col) {for (var r = -1; r <= 7; r++) {if (row + r <= -1 || this.moduleCount <= row + r) continue;for (var c = -1; c <= 7; c++) {if (col + c <= -1 || this.moduleCount <= col + c) continue;0 <= r && r <= 6 && (c == 0 || c == 6) || 0 <= c && c <= 6 && (r == 0 || r == 6) || 2 <= r && r <= 4 && 2 <= c && c <= 4 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1;}}},"getBestMaskPattern": function() {var minLostPoint = 0, pattern = 0;for (var i = 0; i < 8; i++) {this.makeImpl(!0, i);var lostPoint = QRUtil.getLostPoint(this);if (i == 0 || minLostPoint > lostPoint) minLostPoint = lostPoint, pattern = i;}return pattern;},"createMovieClip": function(target_mc, instance_name, depth) {var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth), cs = 1;this.make();for (var row = 0; row < this.modules.length; row++) {var y = row * cs;for (var col = 0; col < this.modules[row].length; col++) {var x = col * cs, dark = this.modules[row][col];dark && (qr_mc.beginFill(0, 100), qr_mc.moveTo(x, y), qr_mc.lineTo(x + cs, y), qr_mc.lineTo(x + cs, y + cs), qr_mc.lineTo(x, y + cs), qr_mc.endFill());}}return qr_mc;},"setupTimingPattern": function() {for (var r = 8; r < this.moduleCount - 8; r++) {if (this.modules[r][6] != null) continue;this.modules[r][6] = r % 2 == 0;}for (var c = 8; c < this.moduleCount - 8; c++) {if (this.modules[6][c] != null) continue;this.modules[6][c] = c % 2 == 0;}},"setupPositionAdjustPattern": function() {var pos = QRUtil.getPatternPosition(this.typeNumber);for (var i = 0; i < pos.length; i++) for (var j = 0; j < pos.length; j++) {var row = pos[i], col = pos[j];if (this.modules[row][col] != null) continue;for (var r = -2; r <= 2; r++) for (var c = -2; c <= 2; c++) r == -2 || r == 2 || c == -2 || c == 2 || r == 0 && c == 0 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1;}},"setupTypeNumber": function(test) {var bits = QRUtil.getBCHTypeNumber(this.typeNumber);for (var i = 0; i < 18; i++) {var mod = !test && (bits >> i & 1) == 1;this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;}for (var i = 0; i < 18; i++) {var mod = !test && (bits >> i & 1) == 1;this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;}},"setupTypeInfo": function(test, maskPattern) {var data = this.errorCorrectLevel << 3 | maskPattern, bits = QRUtil.getBCHTypeInfo(data);for (var i = 0; i < 15; i++) {var mod = !test && (bits >> i & 1) == 1;i < 6 ? this.modules[i][8] = mod : i < 8 ? this.modules[i + 1][8] = mod : this.modules[this.moduleCount - 15 + i][8] = mod;}for (var i = 0; i < 15; i++) {var mod = !test && (bits >> i & 1) == 1;i < 8 ? this.modules[8][this.moduleCount - i - 1] = mod : i < 9 ? this.modules[8][15 - i - 1 + 1] = mod : this.modules[8][15 - i - 1] = mod;}this.modules[this.moduleCount - 8][8] = !test;},"mapData": function(data, maskPattern) {var inc = -1, row = this.moduleCount - 1, bitIndex = 7, byteIndex = 0;for (var col = this.moduleCount - 1; col > 0; col -= 2) {col == 6 && col--;for (;;) {for (var c = 0; c < 2; c++) if (this.modules[row][col - c] == null) {var dark = !1;byteIndex < data.length && (dark = (data[byteIndex] >>> bitIndex & 1) == 1);var mask = QRUtil.getMask(maskPattern, row, col - c);mask && (dark = !dark), this.modules[row][col - c] = dark, bitIndex--, bitIndex == -1 && (byteIndex++, bitIndex = 7);}row += inc;if (row < 0 || this.moduleCount <= row) {row -= inc, inc = -inc;break;}}}}}, QRCodeModel.PAD0 = 236, QRCodeModel.PAD1 = 17, QRCodeModel.createData = function(typeNumber, errorCorrectLevel, dataList) {var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel), buffer = new QRBitBuffer;for (var i = 0; i < dataList.length; i++) {var data = dataList[i];buffer.put(data.mode, 4), buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)), data.write(buffer);}var totalDataCount = 0;for (var i = 0; i < rsBlocks.length; i++) totalDataCount += rsBlocks[i].dataCount;if (buffer.getLengthInBits() > totalDataCount * 8) throw new Error("code length overflow. (" + buffer.getLengthInBits() + ">" + totalDataCount * 8 + ")");buffer.getLengthInBits() + 4 <= totalDataCount * 8 && buffer.put(0, 4);while (buffer.getLengthInBits() % 8 != 0) buffer.putBit(!1);for (;;) {if (buffer.getLengthInBits() >= totalDataCount * 8) break;buffer.put(QRCodeModel.PAD0, 8);if (buffer.getLengthInBits() >= totalDataCount * 8) break;buffer.put(QRCodeModel.PAD1, 8);}return QRCodeModel.createBytes(buffer, rsBlocks);}, QRCodeModel.createBytes = function(buffer, rsBlocks) {var offset = 0, maxDcCount = 0, maxEcCount = 0, dcdata = new Array(rsBlocks.length), ecdata = new Array(rsBlocks.length);for (var r = 0; r < rsBlocks.length; r++) {var dcCount = rsBlocks[r].dataCount, ecCount = rsBlocks[r].totalCount - dcCount;maxDcCount = Math.max(maxDcCount, dcCount), maxEcCount = Math.max(maxEcCount, ecCount), dcdata[r] = new Array(dcCount);for (var i = 0; i < dcdata[r].length; i++) dcdata[r][i] = 255 & buffer.buffer[i + offset];offset += dcCount;var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount), rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1), modPoly = rawPoly.mod(rsPoly);ecdata[r] = new Array(rsPoly.getLength() - 1);for (var i = 0; i < ecdata[r].length; i++) {var modIndex = i + modPoly.getLength() - ecdata[r].length;ecdata[r][i] = modIndex >= 0 ? modPoly.get(modIndex) : 0;}}var totalCodeCount = 0;for (var i = 0; i < rsBlocks.length; i++) totalCodeCount += rsBlocks[i].totalCount;var data = new Array(totalCodeCount), index = 0;for (var i = 0; i < maxDcCount; i++) for (var r = 0; r < rsBlocks.length; r++) i < dcdata[r].length && (data[index++] = dcdata[r][i]);for (var i = 0; i < maxEcCount; i++) for (var r = 0; r < rsBlocks.length; r++) i < ecdata[r].length && (data[index++] = ecdata[r][i]);return data;};var QRMode = {"MODE_NUMBER": 1,"MODE_ALPHA_NUM": 2,"MODE_8BIT_BYTE": 4,"MODE_KANJI": 8}, QRErrorCorrectLevel = {"L": 1,"M": 0,"Q": 3,"H": 2}, QRMaskPattern = {"PATTERN000": 0,"PATTERN001": 1,"PATTERN010": 2,"PATTERN011": 3,"PATTERN100": 4,"PATTERN101": 5,"PATTERN110": 6,"PATTERN111": 7}, QRUtil = {"PATTERN_POSITION_TABLE": [ [], [ 6, 18 ], [ 6, 22 ], [ 6, 26 ], [ 6, 30 ], [ 6, 34 ], [ 6, 22, 38 ], [ 6, 24, 42 ], [ 6, 26, 46 ], [ 6, 28, 50 ], [ 6, 30, 54 ], [ 6, 32, 58 ], [ 6, 34, 62 ], [ 6, 26, 46, 66 ], [ 6, 26, 48, 70 ], [ 6, 26, 50, 74 ], [ 6, 30, 54, 78 ], [ 6, 30, 56, 82 ], [ 6, 30, 58, 86 ], [ 6, 34, 62, 90 ], [ 6, 28, 50, 72, 94 ], [ 6, 26, 50, 74, 98 ], [ 6, 30, 54, 78, 102 ], [ 6, 28, 54, 80, 106 ], [ 6, 32, 58, 84, 110 ], [ 6, 30, 58, 86, 114 ], [ 6, 34, 62, 90, 118 ], [ 6, 26, 50, 74, 98, 122 ], [ 6, 30, 54, 78, 102, 126 ], [ 6, 26, 52, 78, 104, 130 ], [ 6, 30, 56, 82, 108, 134 ], [ 6, 34, 60, 86, 112, 138 ], [ 6, 30, 58, 86, 114, 142 ], [ 6, 34, 62, 90, 118, 146 ], [ 6, 30, 54, 78, 102, 126, 150 ], [ 6, 24, 50, 76, 102, 128, 154 ], [ 6, 28, 54, 80, 106, 132, 158 ], [ 6, 32, 58, 84, 110, 136, 162 ], [ 6, 26, 54, 82, 110, 138, 166 ], [ 6, 30, 58, 86, 114, 142, 170 ] ],"G15": 1335,"G18": 7973,"G15_MASK": 21522,"getBCHTypeInfo": function(data) {var d = data << 10;while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) d ^= QRUtil.G15 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15);return (data << 10 | d) ^ QRUtil.G15_MASK;},"getBCHTypeNumber": function(data) {var d = data << 12;while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) d ^= QRUtil.G18 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18);return data << 12 | d;},"getBCHDigit": function(data) {var digit = 0;while (data != 0) digit++, data >>>= 1;return digit;},"getPatternPosition": function(typeNumber) {return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];},"getMask": function(maskPattern, i, j) {switch (maskPattern) {case QRMaskPattern.PATTERN000:return (i + j) % 2 == 0;case QRMaskPattern.PATTERN001:return i % 2 == 0;case QRMaskPattern.PATTERN010:return j % 3 == 0;case QRMaskPattern.PATTERN011:return (i + j) % 3 == 0;case QRMaskPattern.PATTERN100:return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0;case QRMaskPattern.PATTERN101:return i * j % 2 + i * j % 3 == 0;case QRMaskPattern.PATTERN110:return (i * j % 2 + i * j % 3) % 2 == 0;case QRMaskPattern.PATTERN111:return (i * j % 3 + (i + j) % 2) % 2 == 0;default:throw new Error("bad maskPattern:" + maskPattern);}},"getErrorCorrectPolynomial": function(errorCorrectLength) {var a = new QRPolynomial([ 1 ], 0);for (var i = 0; i < errorCorrectLength; i++) a = a.multiply(new QRPolynomial([ 1, QRMath.gexp(i) ], 0));return a;},"getLengthInBits": function(mode, type) {if (1 <= type && type < 10) switch (mode) {case QRMode.MODE_NUMBER:return 10;case QRMode.MODE_ALPHA_NUM:return 9;case QRMode.MODE_8BIT_BYTE:return 8;case QRMode.MODE_KANJI:return 8;default:throw new Error("mode:" + mode);} else if (type < 27) switch (mode) {case QRMode.MODE_NUMBER:return 12;case QRMode.MODE_ALPHA_NUM:return 11;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 10;default:throw new Error("mode:" + mode);} else {if (!(type < 41)) throw new Error("type:" + type);switch (mode) {case QRMode.MODE_NUMBER:return 14;case QRMode.MODE_ALPHA_NUM:return 13;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 12;default:throw new Error("mode:" + mode);}}},"getLostPoint": function(qrCode) {var moduleCount = qrCode.getModuleCount(), lostPoint = 0;for (var row = 0; row < moduleCount; row++) for (var col = 0; col < moduleCount; col++) {var sameCount = 0, dark = qrCode.isDark(row, col);for (var r = -1; r <= 1; r++) {if (row + r < 0 || moduleCount <= row + r) continue;for (var c = -1; c <= 1; c++) {if (col + c < 0 || moduleCount <= col + c) continue;if (r == 0 && c == 0) continue;dark == qrCode.isDark(row + r, col + c) && sameCount++;}}sameCount > 5 && (lostPoint += 3 + sameCount - 5);}for (var row = 0; row < moduleCount - 1; row++) for (var col = 0; col < moduleCount - 1; col++) {var count = 0;qrCode.isDark(row, col) && count++, qrCode.isDark(row + 1, col) && count++, qrCode.isDark(row, col + 1) && count++, qrCode.isDark(row + 1, col + 1) && count++;if (count == 0 || count == 4) lostPoint += 3;}for (var row = 0; row < moduleCount; row++) for (var col = 0; col < moduleCount - 6; col++) qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6) && (lostPoint += 40);for (var col = 0; col < moduleCount; col++) for (var row = 0; row < moduleCount - 6; row++) qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col) && (lostPoint += 40);var darkCount = 0;for (var col = 0; col < moduleCount; col++) for (var row = 0; row < moduleCount; row++) qrCode.isDark(row, col) && darkCount++;var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;return lostPoint += ratio * 10, lostPoint;}}, QRMath = {"glog": function(n) {if (n < 1) throw new Error("glog(" + n + ")");return QRMath.LOG_TABLE[n];},"gexp": function(n) {while (n < 0) n += 255;while (n >= 256) n -= 255;return QRMath.EXP_TABLE[n];},"EXP_TABLE": new Array(256),"LOG_TABLE": new Array(256)};for (var i = 0; i < 8; i++) QRMath.EXP_TABLE[i] = 1 << i;for (var i = 8; i < 256; i++) QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8];for (var i = 0; i < 255; i++) QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i;QRPolynomial.prototype = {"get": function(index) {return this.num[index];},"getLength": function() {return this.num.length;},"multiply": function(e) {var num = new Array(this.getLength() + e.getLength() - 1);for (var i = 0; i < this.getLength(); i++) for (var j = 0; j < e.getLength(); j++) num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)));return new QRPolynomial(num, 0);},"mod": function(e) {if (this.getLength() - e.getLength() < 0) return this;var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0)), num = new Array(this.getLength());for (var i = 0; i < this.getLength(); i++) num[i] = this.get(i);for (var i = 0; i < e.getLength(); i++) num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio);return (new QRPolynomial(num, 0)).mod(e);}}, QRRSBlock.RS_BLOCK_TABLE = [ [ 1, 26, 19 ], [ 1, 26, 16 ], [ 1, 26, 13 ], [ 1, 26, 9 ], [ 1, 44, 34 ], [ 1, 44, 28 ], [ 1, 44, 22 ], [ 1, 44, 16 ], [ 1, 70, 55 ], [ 1, 70, 44 ], [ 2, 35, 17 ], [ 2, 35, 13 ], [ 1, 100, 80 ], [ 2, 50, 32 ], [ 2, 50, 24 ], [ 4, 25, 9 ], [ 1, 134, 108 ], [ 2, 67, 43 ], [ 2, 33, 15, 2, 34, 16 ], [ 2, 33, 11, 2, 34, 12 ], [ 2, 86, 68 ], [ 4, 43, 27 ], [ 4, 43, 19 ], [ 4, 43, 15 ], [ 2, 98, 78 ], [ 4, 49, 31 ], [ 2, 32, 14, 4, 33, 15 ], [ 4, 39, 13, 1, 40, 14 ], [ 2, 121, 97 ], [ 2, 60, 38, 2, 61, 39 ], [ 4, 40, 18, 2, 41, 19 ], [ 4, 40, 14, 2, 41, 15 ], [ 2, 146, 116 ], [ 3, 58, 36, 2, 59, 37 ], [ 4, 36, 16, 4, 37, 17 ], [ 4, 36, 12, 4, 37, 13 ], [ 2, 86, 68, 2, 87, 69 ], [ 4, 69, 43, 1, 70, 44 ], [ 6, 43, 19, 2, 44, 20 ], [ 6, 43, 15, 2, 44, 16 ], [ 4, 101, 81 ], [ 1, 80, 50, 4, 81, 51 ], [ 4, 50, 22, 4, 51, 23 ], [ 3, 36, 12, 8, 37, 13 ], [ 2, 116, 92, 2, 117, 93 ], [ 6, 58, 36, 2, 59, 37 ], [ 4, 46, 20, 6, 47, 21 ], [ 7, 42, 14, 4, 43, 15 ], [ 4, 133, 107 ], [ 8, 59, 37, 1, 60, 38 ], [ 8, 44, 20, 4, 45, 21 ], [ 12, 33, 11, 4, 34, 12 ], [ 3, 145, 115, 1, 146, 116 ], [ 4, 64, 40, 5, 65, 41 ], [ 11, 36, 16, 5, 37, 17 ], [ 11, 36, 12, 5, 37, 13 ], [ 5, 109, 87, 1, 110, 88 ], [ 5, 65, 41, 5, 66, 42 ], [ 5, 54, 24, 7, 55, 25 ], [ 11, 36, 12 ], [ 5, 122, 98, 1, 123, 99 ], [ 7, 73, 45, 3, 74, 46 ], [ 15, 43, 19, 2, 44, 20 ], [ 3, 45, 15, 13, 46, 16 ], [ 1, 135, 107, 5, 136, 108 ], [ 10, 74, 46, 1, 75, 47 ], [ 1, 50, 22, 15, 51, 23 ], [ 2, 42, 14, 17, 43, 15 ], [ 5, 150, 120, 1, 151, 121 ], [ 9, 69, 43, 4, 70, 44 ], [ 17, 50, 22, 1, 51, 23 ], [ 2, 42, 14, 19, 43, 15 ], [ 3, 141, 113, 4, 142, 114 ], [ 3, 70, 44, 11, 71, 45 ], [ 17, 47, 21, 4, 48, 22 ], [ 9, 39, 13, 16, 40, 14 ], [ 3, 135, 107, 5, 136, 108 ], [ 3, 67, 41, 13, 68, 42 ], [ 15, 54, 24, 5, 55, 25 ], [ 15, 43, 15, 10, 44, 16 ], [ 4, 144, 116, 4, 145, 117 ], [ 17, 68, 42 ], [ 17, 50, 22, 6, 51, 23 ], [ 19, 46, 16, 6, 47, 17 ], [ 2, 139, 111, 7, 140, 112 ], [ 17, 74, 46 ], [ 7, 54, 24, 16, 55, 25 ], [ 34, 37, 13 ], [ 4, 151, 121, 5, 152, 122 ], [ 4, 75, 47, 14, 76, 48 ], [ 11, 54, 24, 14, 55, 25 ], [ 16, 45, 15, 14, 46, 16 ], [ 6, 147, 117, 4, 148, 118 ], [ 6, 73, 45, 14, 74, 46 ], [ 11, 54, 24, 16, 55, 25 ], [ 30, 46, 16, 2, 47, 17 ], [ 8, 132, 106, 4, 133, 107 ], [ 8, 75, 47, 13, 76, 48 ], [ 7, 54, 24, 22, 55, 25 ], [ 22, 45, 15, 13, 46, 16 ], [ 10, 142, 114, 2, 143, 115 ], [ 19, 74, 46, 4, 75, 47 ], [ 28, 50, 22, 6, 51, 23 ], [ 33, 46, 16, 4, 47, 17 ], [ 8, 152, 122, 4, 153, 123 ], [ 22, 73, 45, 3, 74, 46 ], [ 8, 53, 23, 26, 54, 24 ], [ 12, 45, 15, 28, 46, 16 ], [ 3, 147, 117, 10, 148, 118 ], [ 3, 73, 45, 23, 74, 46 ], [ 4, 54, 24, 31, 55, 25 ], [ 11, 45, 15, 31, 46, 16 ], [ 7, 146, 116, 7, 147, 117 ], [ 21, 73, 45, 7, 74, 46 ], [ 1, 53, 23, 37, 54, 24 ], [ 19, 45, 15, 26, 46, 16 ], [ 5, 145, 115, 10, 146, 116 ], [ 19, 75, 47, 10, 76, 48 ], [ 15, 54, 24, 25, 55, 25 ], [ 23, 45, 15, 25, 46, 16 ], [ 13, 145, 115, 3, 146, 116 ], [ 2, 74, 46, 29, 75, 47 ], [ 42, 54, 24, 1, 55, 25 ], [ 23, 45, 15, 28, 46, 16 ], [ 17, 145, 115 ], [ 10, 74, 46, 23, 75, 47 ], [ 10, 54, 24, 35, 55, 25 ], [ 19, 45, 15, 35, 46, 16 ], [ 17, 145, 115, 1, 146, 116 ], [ 14, 74, 46, 21, 75, 47 ], [ 29, 54, 24, 19, 55, 25 ], [ 11, 45, 15, 46, 46, 16 ], [ 13, 145, 115, 6, 146, 116 ], [ 14, 74, 46, 23, 75, 47 ], [ 44, 54, 24, 7, 55, 25 ], [ 59, 46, 16, 1, 47, 17 ], [ 12, 151, 121, 7, 152, 122 ], [ 12, 75, 47, 26, 76, 48 ], [ 39, 54, 24, 14, 55, 25 ], [ 22, 45, 15, 41, 46, 16 ], [ 6, 151, 121, 14, 152, 122 ], [ 6, 75, 47, 34, 76, 48 ], [ 46, 54, 24, 10, 55, 25 ], [ 2, 45, 15, 64, 46, 16 ], [ 17, 152, 122, 4, 153, 123 ], [ 29, 74, 46, 14, 75, 47 ], [ 49, 54, 24, 10, 55, 25 ], [ 24, 45, 15, 46, 46, 16 ], [ 4, 152, 122, 18, 153, 123 ], [ 13, 74, 46, 32, 75, 47 ], [ 48, 54, 24, 14, 55, 25 ], [ 42, 45, 15, 32, 46, 16 ], [ 20, 147, 117, 4, 148, 118 ], [ 40, 75, 47, 7, 76, 48 ], [ 43, 54, 24, 22, 55, 25 ], [ 10, 45, 15, 67, 46, 16 ], [ 19, 148, 118, 6, 149, 119 ], [ 18, 75, 47, 31, 76, 48 ], [ 34, 54, 24, 34, 55, 25 ], [ 20, 45, 15, 61, 46, 16 ] ], QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) {var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);if (rsBlock == undefined) throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel);var length = rsBlock.length / 3, list = [];for (var i = 0; i < length; i++) {var count = rsBlock[i * 3 + 0], totalCount = rsBlock[i * 3 + 1], dataCount = rsBlock[i * 3 + 2];for (var j = 0; j < count; j++) list.push(new QRRSBlock(totalCount, dataCount));}return list;}, QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) {switch (errorCorrectLevel) {case QRErrorCorrectLevel.L:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];case QRErrorCorrectLevel.M:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];case QRErrorCorrectLevel.Q:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];case QRErrorCorrectLevel.H:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];default:return undefined;}}, QRBitBuffer.prototype = {"get": function(index) {var bufIndex = Math.floor(index / 8);return (this.buffer[bufIndex] >>> 7 - index % 8 & 1) == 1;},"put": function(num, length) {for (var i = 0; i < length; i++) this.putBit((num >>> length - i - 1 & 1) == 1);},"getLengthInBits": function() {return this.length;},"putBit": function(bit) {var bufIndex = Math.floor(this.length / 8);this.buffer.length <= bufIndex && this.buffer.push(0), bit && (this.buffer[bufIndex] |= 128 >>> this.length % 8), this.length++;}};var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]];function _isSupportCanvas() {return typeof CanvasRenderingContext2D != "undefined";}// android 2.x doesn't support Data-URI specfunction _getAndroid() {var android = false;var sAgent = navigator.userAgent;if (/android/i.test(sAgent)) { // androidandroid = true;aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);if (aMat && aMat[1]) {android = parseFloat(aMat[1]);}}return android;}var svgDrawer = (function() {var Drawing = function (el, htOption) {this._el = el;this._htOption = htOption;};Drawing.prototype.draw = function (oQRCode) {var _htOption = this._htOption;var _el = this._el;var nCount = oQRCode.getModuleCount();var nWidth = Math.floor(_htOption.width / nCount);var nHeight = Math.floor(_htOption.height / nCount);this.clear();function makeSVG(tag, attrs) {var el = document.createElementNS('http://www.w3.org/2000/svg', tag);for (var k in attrs)if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]);return el;}var svg = makeSVG("svg" , {'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight});svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink");_el.appendChild(svg);svg.appendChild(makeSVG("rect", {"fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template"}));for (var row = 0; row < nCount; row++) {for (var col = 0; col < nCount; col++) {if (oQRCode.isDark(row, col)) {var child = makeSVG("use", {"x": String(row), "y": String(col)});child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template")svg.appendChild(child);}}}};Drawing.prototype.clear = function () {while (this._el.hasChildNodes())this._el.removeChild(this._el.lastChild);};return Drawing;})();var useSVG = document.documentElement.tagName.toLowerCase() === "svg";// Drawing in DOM by using Table tagvar Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () {var Drawing = function (el, htOption) {this._el = el;this._htOption = htOption;};/*** Draw the QRCode* * @param {QRCode} oQRCode*/Drawing.prototype.draw = function (oQRCode) {var _htOption = this._htOption;var _el = this._el;var nCount = oQRCode.getModuleCount();var nWidth = Math.floor(_htOption.width / nCount);var nHeight = Math.floor(_htOption.height / nCount);var aHTML = ['<table style="border:0;border-collapse:collapse;">'];for (var row = 0; row < nCount; row++) {aHTML.push('<tr>');for (var col = 0; col < nCount; col++) {aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + 'px;height:' + nHeight + 'px;background-color:' + (oQRCode.isDark(row, col) ? _htOption.colorDark : _htOption.colorLight) + ';"></td>');}aHTML.push('</tr>');}aHTML.push('</table>');_el.innerHTML = aHTML.join('');// Fix the margin values as real size.var elTable = _el.childNodes[0];var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;if (nLeftMarginTable > 0 && nTopMarginTable > 0) {elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px"; }};/*** Clear the QRCode*/Drawing.prototype.clear = function () {this._el.innerHTML = '';};return Drawing;})() : (function () { // Drawing in Canvasfunction _onMakeImage() {this._elImage.src = this._elCanvas.toDataURL("image/png");this._elImage.style.display = "block";this._elCanvas.style.display = "none"; }// Android 2.1 bug workaround// http://code.google.com/p/android/issues/detail?id=5141if (this._android && this._android <= 2.1) {var factor = 1 / window.devicePixelRatio;var drawImage = CanvasRenderingContext2D.prototype.drawImage; CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {if (("nodeName" in image) && /img/i.test(image.nodeName)) {for (var i = arguments.length - 1; i >= 1; i--) {arguments[i] = arguments[i] * factor;}} else if (typeof dw == "undefined") {arguments[1] *= factor;arguments[2] *= factor;arguments[3] *= factor;arguments[4] *= factor;}drawImage.apply(this, arguments); };}/*** Check whether the user's browser supports Data URI or not* * @private* @param {Function} fSuccess Occurs if it supports Data URI* @param {Function} fFail Occurs if it doesn't support Data URI*/function _safeSetDataURI(fSuccess, fFail) {var self = this;self._fFail = fFail;self._fSuccess = fSuccess;// Check it just onceif (self._bSupportDataURI === null) {var el = document.createElement("img");var fOnError = function() {self._bSupportDataURI = false;if (self._fFail) {_fFail.call(self);}};var fOnSuccess = function() {self._bSupportDataURI = true;if (self._fSuccess) {self._fSuccess.call(self);}};el.onabort = fOnError;el.onerror = fOnError;el.onload = fOnSuccess;el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.return;} else if (self._bSupportDataURI === true && self._fSuccess) {self._fSuccess.call(self);} else if (self._bSupportDataURI === false && self._fFail) {self._fFail.call(self);}};/*** Drawing QRCode by using canvas* * @constructor* @param {HTMLElement} el* @param {Object} htOption QRCode Options */var Drawing = function (el, htOption) {this._bIsPainted = false;this._android = _getAndroid();this._htOption = htOption;this._elCanvas = document.createElement("canvas");this._elCanvas.width = htOption.width;this._elCanvas.height = htOption.height;el.appendChild(this._elCanvas);this._el = el;this._oContext = this._elCanvas.getContext("2d");this._bIsPainted = false;this._elImage = document.createElement("img");this._elImage.alt = "Scan me!";this._elImage.style.display = "none";this._el.appendChild(this._elImage);this._bSupportDataURI = null;};/*** Draw the QRCode* * @param {QRCode} oQRCode */Drawing.prototype.draw = function (oQRCode) {var _elImage = this._elImage;var _oContext = this._oContext;var _htOption = this._htOption;var nCount = oQRCode.getModuleCount();var nWidth = _htOption.width / nCount;var nHeight = _htOption.height / nCount;var nRoundedWidth = Math.round(nWidth);var nRoundedHeight = Math.round(nHeight);_elImage.style.display = "none";this.clear();for (var row = 0; row < nCount; row++) {for (var col = 0; col < nCount; col++) {var bIsDark = oQRCode.isDark(row, col);var nLeft = col * nWidth;var nTop = row * nHeight;_oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;_oContext.lineWidth = 1;_oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight; _oContext.fillRect(nLeft, nTop, nWidth, nHeight);// ?? ???? ?? ??_oContext.strokeRect(Math.floor(nLeft) + 0.5,Math.floor(nTop) + 0.5,nRoundedWidth,nRoundedHeight);_oContext.strokeRect(Math.ceil(nLeft) - 0.5,Math.ceil(nTop) - 0.5,nRoundedWidth,nRoundedHeight);}}this._bIsPainted = true;};/*** Make the image from Canvas if the browser supports Data URI.*/Drawing.prototype.makeImage = function () {if (this._bIsPainted) {_safeSetDataURI.call(this, _onMakeImage);}};/*** Return whether the QRCode is painted or not* * @return {Boolean}*/Drawing.prototype.isPainted = function () {return this._bIsPainted;};/*** Clear the QRCode*/Drawing.prototype.clear = function () {this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);this._bIsPainted = false;};/*** @private* @param {Number} nNumber*/Drawing.prototype.round = function (nNumber) {if (!nNumber) {return nNumber;}return Math.floor(nNumber * 1000) / 1000;};return Drawing;})();/*** Get the type by string length* * @private* @param {String} sText* @param {Number} nCorrectLevel* @return {Number} type*/function _getTypeNumber(sText, nCorrectLevel) { var nType = 1;var length = _getUTF8Length(sText);for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {var nLimit = 0;switch (nCorrectLevel) {case QRErrorCorrectLevel.L :nLimit = QRCodeLimitLength[i][0];break;case QRErrorCorrectLevel.M :nLimit = QRCodeLimitLength[i][1];break;case QRErrorCorrectLevel.Q :nLimit = QRCodeLimitLength[i][2];break;case QRErrorCorrectLevel.H :nLimit = QRCodeLimitLength[i][3];break;}if (length <= nLimit) {break;} else {nType++;}}if (nType > QRCodeLimitLength.length) {throw new Error("Too long data");}return nType;}function _getUTF8Length(sText) {var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');return replacedText.length + (replacedText.length != sText ? 3 : 0);}/*** @class QRCode* @constructor* @example * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie");** @example* var oQRCode = new QRCode("test", {* text : "http://naver.com",* width : 128,* height : 128* });* * oQRCode.clear(); // Clear the QRCode.* oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.** @param {HTMLElement|String} el target element or 'id' attribute of element.* @param {Object|String} vOption* @param {String} vOption.text QRCode link data* @param {Number} [vOption.width=256]* @param {Number} [vOption.height=256]* @param {String} [vOption.colorDark="#000000"]* @param {String} [vOption.colorLight="#ffffff"]* @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] */QRCode = function (el, vOption) {this._htOption = {width : 256, height : 256,typeNumber : 4,colorDark : "#000000",colorLight : "#ffffff",correctLevel : QRErrorCorrectLevel.H};if (typeof vOption === 'string') {vOption = {text : vOption};}// Overwrites optionsif (vOption) {for (var i in vOption) {this._htOption[i] = vOption[i];}}if (typeof el == "string") {el = document.getElementById(el);}this._android = _getAndroid();this._el = el;this._oQRCode = null;this._oDrawing = new Drawing(this._el, this._htOption);if (this._htOption.text) {this.makeCode(this._htOption.text); }};/*** Make the QRCode* * @param {String} sText link data*/QRCode.prototype.makeCode = function (sText) {this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel);this._oQRCode.addData(sText);this._oQRCode.make();this._el.title = sText;this._oDrawing.draw(this._oQRCode); this.makeImage();};/*** Make the Image from Canvas element* - It occurs automatically* - Android below 3 doesn't support Data-URI spec.* * @private*/QRCode.prototype.makeImage = function () {if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) {this._oDrawing.makeImage();}};/*** Clear the QRCode*/QRCode.prototype.clear = function () {this._oDrawing.clear();};/*** @name QRCode.CorrectLevel*/QRCode.CorrectLevel = QRErrorCorrectLevel; })();

調(diào)用這個JS文件代碼：

<!DOCTYPE html> <html> <head><title></title><meta charset="utf-8"/><script src="js/qrcode.js"></script><style>#qrcode{/*text-align: center;*//*display: table-cell;*//*width: 96px;*//*height: 96px;*//*vertical-align:middle;*//*position: relative;*/}</style> </head> <body> <div id="qrcode"> </div><input type="text" id="getval"/> <button id="send">點擊更換驗證碼</button> <script>window.onload =function(){var qrcode = new QRCode(document.getElementById("qrcode"), {width : 96,//設置寬高height : 96});qrcode.makeCode("http://www.baidu.com");document.getElementById("send").onclick =function(){qrcode.makeCode(document.getElementById("getval").value);}}</script> </body> </html>

其中 調(diào)用方法：

var qrcode = new QRCode(elem, {width : 96,//設置寬高height : 96});qrcode.makeCode("http://www.baidu.com"); 網(wǎng)頁添加分享功能 http://www.jiathis.com/ 打開以上網(wǎng)頁，將代碼復制到你的頁面中，即可 優(yōu)點：使用方便 缺點：無法做統(tǒng)計

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