// 結(jié)構(gòu)體
struct stu_m {
unsigned int a;
unsigned int b;
};
結(jié)構(gòu)體轉(zhuǎn) NSData
stu_m stu = stu_m();
NSData *data = [NSData dataWithBytes:&stu length:sizeof(stu_m)];
NSData 轉(zhuǎn)結(jié)構(gòu)體
stu_m stu;
[data getBytes:&stu length:sizeof(stu_m)];
