字节流转换

nssting转byte

NSString *str = @"你好啊,aBc!";

NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(NSUTF16BigEndianStringEncoding);

NSData *data = [str dataUsingEncoding:enc];

Byte *byte = (Byte *)[data bytes];

for (int i=0 ; i<[data length]; i++) {

}

byte转nsstring

Byte array[] = {79,96,89,125,85,74,0,44,0,97,0,66,0,99,0,33};

[[NSString alloc]initWithBytes: byte length:sizeof(byte) encoding:NSUTF16StringEncoding]