/// <summary>
/// 清空指定目录下所有文件及子目录,但该目录依然保存.
/// </summary>
/// <param name="env"></param>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void ClearDirectory(this IHostingEnvironment env, string directoryPath)
{
directoryPath = Path.Combine(env.ContentRootPath, directoryPath);
if (IsExistDirectory(directoryPath))
{
//删除目录中所有的文件
string[] fileNames = GetFileNames(directoryPath);
foreach (var fileName in fileNames)
{
env.DeleteFile(fileName);
}
//删除目录中所有的子目录
string[] directoryNames = GetDirectories(directoryPath);
foreach (var directoryName in directoryNames)
{
env.DeleteDirectory(directoryName);
}
}
}
