我要评论1、获得当前运行程序的路径
string rootpath = directory.getcurrentdirectory();
2、获得该文件夹下的文件，返回类型为fileinfo
string path=@"x:\xxx\xx"; directoryinfo root = new directoryinfo(path); fileinfo[] files=root.getfiles();
3、获得该文件夹下的子目录，返回类型为directoryinfo
string path=@"x:\xxx\xx"; directoryinfo root = new directoryinfo(path); dirctoryinfo[] dics=root.getdirectories();
4、获得文件夹名
string path=@"x:\xxx\xx"; directoryinfo root = new directoryinfo(path); string dicname=root.name;
5、获得文件夹完整的路径名
string path=@"x:\xxx\xx"; directoryinfo root = new directoryinfo(path); string dicname=root.fullname;
6、获取文件的name和fullname
string path=@"x:\xxx\xx";
directoryinfo root = new directoryinfo(path);
foreach (fileinfo f in root.getfiles())
{
string name=f.name;
string fullname=f.fullname;
}
7.只获取目录下一级的文件夹与文件
string path = @"x:\xxx\xxx";
//第一种方法
string[] files = directory.getfiles(path, "*.txt");
foreach (string file in files)
{
console.writeline(file);
}
//第二种方法
directoryinfo folder = new directoryinfo(path);
foreach (fileinfo file in folder.getfiles("*.txt"))
{
console.writeline(file.fullname);
}8.递归地输出当前运行程序所在的磁盘下的所有文件名和子目录名
static void main(string[] args)
{
//获取当前程序所在的文件路径
string rootpath = directory.getcurrentdirectory();
string parentpath = directory.getparent(rootpath).fullname;//上级目录
string toppath = directory.getparent(parentpath).fullname;//上上级目录
streamwriter sw = null;
try
{
//创建输出流，将得到文件名子目录名保存到txt中
sw = new streamwriter(new filestream("filelist.txt", filemode.append));
sw.writeline("根目录：" + toppath);
getdirectory(sw, toppath, 2);
}
catch (ioexception e)
{
console.writeline(e.message);
}
finally
{
if (sw != null)
{
sw.close();
console.writeline("完成");
}
}
}
/// <summary>
/// 获得指定路径下所有文件名
/// </summary>
/// <param name="sw">文件写入流</param>
/// <param name="path">文件写入流</param>
/// <param name="indent">输出时的缩进量</param>
public static void getfilename(streamwriter sw, string path, int indent)
{
directoryinfo root = new directoryinfo(path);
foreach (fileinfo f in root.getfiles())
{
for (int i = 0; i < indent; i++)
{
sw.write(" ");
}
sw.writeline(f.name);
}
}
/// <summary>
/// 获得指定路径下所有子目录名
/// </summary>
/// <param name="sw">文件写入流</param>
/// <param name="path">文件夹路径</param>
/// <param name="indent">输出时的缩进量</param>
public static void getdirectory(streamwriter sw, string path, int indent)
{
getfilename(sw, path, indent);
directoryinfo root = new directoryinfo(path);
foreach (directoryinfo d in root.getdirectories())
{
for (int i = 0; i < indent; i++)
{
sw.write(" ");
}
sw.writeline("文件夹：" + d.name);
getdirectory(sw, d.fullname, indent + 2);
sw.writeline();
}
}
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