NSData 与 Byte[]之间的转换

NSData *btsData = [in_str dataUsingEncoding:NSUTF8StringEncoding];

 

 

Byte *byteData = (Byte*)malloc(len);

memcpy(byteData, [btsData bytes], len);

 

 

NSMutableData *bts2Data = [NSMutableDatadataWithLength:len];

 

[bts2Data initWithBytes:byteData length:len];