/// <summary>
/// 获取已缓存的文件的总大小。
/// </summary>
/// <returns>返回图片缓存文件夹的大小，单位为字节。</returns>
public static long GetCachedImagesSize()
{
return(IsolatedStorageFileExtensions.GetDirectorySize(CACHED_IMAGE_DIRECTORY));
}
/// <summary>
/// 清空独立存储中已经缓存的图片。
/// </summary>
public static void CleanUpCachedImages()
{
IsolatedStorageFileExtensions.DeleteDirectoryRecursive(CACHED_IMAGE_DIRECTORY);
}
