NSData and CFData 

NSData *my_nsdata = (__bridge_transfer NSData*)my_cfdata; // -1 on the my_cfdata

or

NSData *my_nsdata = (__bridge NSData*)my_cfdata; // no adjustment of retain counts.
posted @ 2018-04-21 16:06  NOIP/NOI辅导  Views(442)  Comments(0)  Edit  收藏  举报