OC iOS How to convert BCD code to iOS acsii code __ios

Author: Zhu Ke

Email: zhukefeng@iboxpay.com

Reprint please indicate the source: HTTP://BLOG.CSDN.NET/LINUX_ZKF

nsstring* ASCIICONVERTFROMBCD (NSString *bcdstring)

{

int len = bcdstring.length;

Char pdupack[len/2+1], *pdustr;

Bzero (Pdupack, len/2+1);

PDUSTR = (char *) [bcdstring cstringusingencoding:nsutf8stringencoding];

for (int i=0 i <len; i+=2) {

Char Tempchar;

Tempchar = Pdustr[i];

if ((Tempchar <= ' 9 ') && (Tempchar >= ' 0 ')) {

Tempchar = Tempchar & 0x0f;

}

else {

Tempchar = (Tempchar & 0x0f) + 9;

}

PDUPACK[I/2] = Tempchar;

Tempchar = pdustr[i+1];

if ((Tempchar <= ' 9 ') && (Tempchar >= ' 0 ')) {

Tempchar = Tempchar & 0x0f;

}

else {

Tempchar = (Tempchar & 0x0f) + 9;

}

PDUPACK[I/2] = ((PDUPACK[I/2] << 4) & 0xf0) + Tempchar;

}

nsstring* retstring = [[NSString alloc] Initwithcstring:pdupack encoding:nsutf8stringencoding];

return retstring;

}