本源码是利用打印机实现39条码的图形打印，希望该作者或是此行业的高手能多多指教！

完整的打印code39码条码的代码，可以自己定义条码宽窄比，生成并打印条码，用普通打印机打印A4,用通用扫描仪扫描通过-Complete printing code39 bar code code code, you can define its own bar width ratio, to generate and print bar codes, using an ordinary printer A4, with the adoption of universal scanner