(function() { if (!exports) var exports = window; var BARS = [212222,222122,222221,121223,121322,131222,122213,122312,132212,221213,221312,231212,112232,122132,122231,113222,123122,123221,223211,221132,221231,213212,223112,312131,311222,321122,321221,312212,322112,322211,212123,212321,232121,111323,131123,131321,112313,132113,132311,211313,231113,231311,112133,112331,132131,113123,113321,133121,313121,211331,231131,213113,213311,213131,311123,311321,331121,312113,312311,332111,314111,221411,431111,111224,111422,121124,121421,141122,141221,112214,112412,122114,122411,142112,142211,241211,221114,413111,241112,134111,111242,121142,121241,114212,124112,124211,411212,421112,421211,212141,214121,412121,111143,111341,131141,114113,114311,411113,411311,113141,114131,311141,411131,211412,211214,211232,23311120] , START_BASE = 38 , STOP = 106 ; function code128(code, barcodeType) { if (arguments.length<2) barcodeType = code128Detect(code); if (barcodeType=='C' && code.length%2==1) code = '0'+code; var a = parseBarcode(code, barcodeType); return bar2html(a.join('')) + '<label>' + code + '</label>'; } function bar2html(s) { for(var pos=0, sb=[]; pos<s.length; pos+=2) { sb.push('<div></div>'); } return sb.join(''); } function code128Detect(code) { if (/^[0-9]+$/.test(code)) return 'C'; if (/[a-z]/.test(code)) return 'B'; return 'A'; } function parseBarcode(barcode, barcodeType) { var bars = []; bars.add = function(nr) { var nrCode = BARS[nr]; this.check = this.length==0 ? nr : this.check + nr*this.length; this.push( nrCode || ("UNDEFINED: "+nr+"->"+nrCode) ); }; bars.add(START_BASE + barcodeType.charCodeAt(0)); for(var i=0; i<barcode.length; i++) { var code = barcodeType=='C' ? +barcode.substr(i++, 2) : barcode.charCodeAt(i); converted = fromType[barcodeType](code); if (isNaN(converted) || converted<0 || converted>106) throw new Error("Unrecognized character ("+code+") at position "+i+" in code '"+barcode+"'."); bars.add( converted ); } bars.push(BARS[bars.check % 103], BARS[STOP]); return bars; } var fromType = { A: function(charCode) { if (charCode>=0 && charCode<32) return charCode+64; if (charCode>=32 && charCode<96) return charCode-32; return charCode; }, B: function(charCode) { if (charCode>=32 && charCode<128) return charCode-32; return charCode; }, C: function(charCode) { return charCode; } }; //--| Export exports.code128 = code128; })(); /* showDiv：代表需要显示的divID， textVlaue ： 代表需要生成的值， barcodeType：代表生成类型(A、B、C)三种类型 */ function createBarcode(showDiv,textValue,barcodeType){ var divElement = document.getElementById(showDiv); divElement.innerHTML = code128(textValue,barcodeType); }
2.css代码如下：
.barcode { float:left; clear:both; padding: 0 10px; /*quiet zone*/ overflow:auto; height:0.5in; /*size*/ } .right { float:right; } .barcode + * { clear:both; } .barcode div { float:left; height: 0.35in; /*size*/ } .barcode .bar1 { border-left:1px solid black; } .barcode .bar2 { border-left:2px solid black; } .barcode .bar3 { border-left:3px solid black; } .barcode .bar4 { border-left:4px solid black; } .barcode .space0 { margin-right:0 } .barcode .space1 { margin-right:1px } .barcode .space2 { margin-right:2px } .barcode .space3 { margin-right:3px } .barcode .space4 { margin-right:4px } .barcode label { clear:both; display:block; text-align:center; font: 0.125in/100% helvetica; /*size*/ } /*** bigger ******************************************/ .barcode2 { float:left; clear:both; padding: 0 10px; /*quiet zone*/ overflow:auto; height:1in; /*size*/ } .barcode2 + * { clear:both; } .barcode2 div { float:left; height: 0.7in; /*size*/ } .barcode2 .bar1 { border-left:2px solid black; } .barcode2 .bar2 { border-left:4px solid black; } .barcode2 .bar3 { border-left:6px solid black; } .barcode2 .bar4 { border-left:8px solid black; } .barcode2 .space0 { margin-right:0 } .barcode2 .space1 { margin-right:2px } .barcode2 .space2 { margin-right:4px } .barcode2 .space3 { margin-right:6px } .barcode2 .space4 { margin-right:8px } .barcode2 label { clear:both; display:block; text-align:center; font: 0.250in/100% helvetica; /*size*/ }
3.html代码如下：
<html> <head> <title>QR-Code Clock</title> <link href="https://www.jb51.net/code128.css" type="text/css" media="screen" charset="utf-8"> <script src="https://www.jb51.net/code128.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript"> (function(divId) { var divElement ,oldOnLoad = window.onload ; function getTimeString() { var pad = function(n) { return n < 10 ? '0' + n.toString(10) : n.toString(10); } ,dt = new Date(); return [pad(dt.getHours()), pad(dt.getMinutes()), pad(dt.getSeconds())].join(':'); } function UpdateClock() { var timeText = getTimeString(); divElement.innerHTML = code128(timeText); } window.onload = function() { divElement = document.getElementById(divId); UpdateClock(); setInterval(UpdateClock, 1000); if (typeof oldOnLoad == 'function') oldOnLoad.apply(this, arguments); } })('div1'); </script> </head> <body> <input type="button" value ="生成"/> <div></div> <div></div> </body> </html>
运行效果图如下：
