caocongcong

并发时，SecItemCopyMatching方法会返回errSecItemNotFound

5

dispatch_queue_t queue = dispatch_queue_create("test", DISPATCH_QUEUE_CONCURRENT); for (int i = 0; i< 100; i++) { dispatch_async(queue, ^{ NSString *test = [[params md5String] uppercaseString]; NSString *test1 = [self p_publicKey]; NSString *test2 =...