ios 下创建，删除文件夹的方法

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];

BOOL isDir = NO;

NSFileManager *fileManager = [NSFileManager defaultManager];

BOOL existed = [fileManager fileExistsAtPath:imageDir isDirectory:&isDir];

if ( !(isDir == YES && existed == YES) )

{

[fileManager createDirectoryAtPath:imageDir withIntermediateDirectories:YES attributes:nil error:nil];

}

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];

NSFileManager *fileManager = [NSFileManager defaultManager];

[fileManager removeItemAtPath:imageDir error:nil];