这是获取文档目录的最常用方法–

This is the more commonly used approach to get the documents directory –

NSArray *searchResults = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [searchResults objectAtIndex:0];

NSString *filePath = [documentsDirectory stringByAppendingPathComponent:fileName];

您可以使用 NSFileManager 来检查目录。您可以查看 contentsOfDirectoryAtPath：error：方法。