hw300.dll使用说明：一、导出函数1、intReadCard(intportnumber,inttracknumber,inttimeout,unsignedchar*track1,int*track1len,unsignedchar*track2,int*track2len,unsignedchar*track3,int*track3len)2、intWriteCard(intportnumber,inttimeout,unsignedchar*track1,inttrack1len,unsignedchar*track2,inttrack2len,unsignedchar*track3,int