//十六进制数转十进制数

-(int)TotexHex:(NSString*)tmpid

{

intint_ch;///两位16进制数转化后的10进制数

unicharhex_char2 = [tmpidcharacterAtIndex:0];///两位16进制数中的第二位(低位)

intint_ch2;

if(hex_char2 >='0'&& hex_char2 <='9')

int_ch2 = (hex_char2-48)*16;//// 0 的Ascll - 48

elseif(hex_char2 >='A'&& hex_char2 <='F')

int_ch2 = (hex_char2-55)*16;//// A 的Ascll - 65

else

int_ch2 = (hex_char2-87)*16;//// a 的Ascll - 97

unicharhex_char3 = [tmpidcharacterAtIndex:1];///两位16进制数中的第二位(低位)

intint_ch3;

if(hex_char3 >='0'&& hex_char3 <='9')

int_ch3 = (hex_char3-48);//// 0 的Ascll - 48

elseif(hex_char3 >='A'&& hex_char3 <='F')

int_ch3 = (hex_char3-55);//// A 的Ascll - 65

else

int_ch3 = (hex_char3-87);//// a 的Ascll - 97

int_ch = int_ch2 +int_ch3;

returnint_ch;

}