详解IOS中文件路径判断是文件还是文件夹

+ (BOOL)isDirectory:(NSString *)filePath {   BOOL isDirectory = NO;   [[NSFileManager defaultManager] fileExistsAtPath:filePath isDirectory:&isDirectory];   return isDirectory; } 

+ (BOOL)isDirectory:(NSString *)filePath {   NSNumber *isDirectory;   NSURL *fileUrl = [NSURL fileURLWithPath:filePath];   [fileUrl getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:nil];   return isDirectory.boolValue; }