读卡器应用函数整理 3.将每个十六进制存储的字节转换成ascii字符存储

//将每个十六进制存储的字节转换成ascii字符存储

char transitionlable(char x)

{char y;

switch(x)

{ case 0: y=48;break;

case 1: y=49;break;

case 2: y=50;break;

case 3: y=51;break;

case 4: y=52;break;

case 5: y=53;break;

case 6: y=54;break;

case 7: y=55;break;

case 8: y=56;break;

case 9: y=57;break;

case 10: y=65;break;

case 11: y=66;break;

case 12: y=67;break;

case 13: y=68;break;

case 14: y=69;break;

case 15: y=70;break;

default: break;

}

return (y);

//将icRead中的每个元素处理成高位和地位，分别调用转换函数，并存到icReadstr中作为独立的元素

char icReadHigh=0,icReadLow=0;

char icReadstr[400];

for(st=0;st<200;st++)

{

if((icRead[st]==0xff)&&(icRead[st+1]==0xff)&&(icRead[st+2]==0xff))

break;

printf("%02X",icRead[st]);

icReadHigh=(icRead[st]>>4)&0x0F; icReadLow=icRead[st]&0x0F;

icReadHigh=transitionlable(icReadHigh); icReadLow=transitionlable(icReadLow);

icReadstr[2*st]=icReadHigh; icReadstr[2*st+1]=icReadLow;

}