我现在怀孕8周了，每天都没有食欲。饱餐一顿后我感到恶心，但我能忍住不呕吐。但是饭后服用叶酸，不到30分钟就会呕吐，也就是叶酸加重孕吐。我担心呕吐叶酸后的药性没有被吸收。请问各位，孕早期服用叶酸后不到30分
I am attempting to store NSMutableDictionaries as a blobs in sqlite, by first converting it into NSData via either NSPropertyListSerialization or NSKeyedArchiver.
I\'m attempting to save a c-style array of Vertex3D structs to an NS开发者_Go百科Data object and get them back when reloading the app:
I have an NSData object which I am trying to turn into an NSString using the following line of code: NSString *theData = [[NSString alloc] initWithData:photo encoding:NSASCIIStringEncoding];
NSString * theString=@\"e88d\"; NSData * data; // something I should implement NSLog(@\"%@\", theString);
I am working on an iPhone project in which I need save camera images to disk and filebut the code below fails:
I can add bytes to a NSMutableData instance easily by using the appendData method, however I do not see any similar method for removing data?开发者_Python百科 Am I overlooking something, or do I need
I am using the following code to save a frame of a movie to my desktop: NSCIImageRep *imageRep = [NSCIImageRep imageRepWithCIImage:[CIImage imageWithCVImageBuffer:imageBuffer]];
Ok, this is more of a \'What the hell is going on?\' than an actual problem. But given my relative inexperience with C, it could alude to greater problems.
I have a data model with three entities (Purchase, Items, Image) the purchase is the main with the other two as related attributes.
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