string path =
"C:\\dir1\\dir2\\foo.txt";
string str =
"GetFullPath：" + Path.GetFullPath(path) +
"\r\n";
str +=
"GetDirectoryName：" + Path.GetDirectoryName(path) +
"\r\n";
str +=
"GetFileName：" + Path.GetFileName(path) +
"\r\n";
str +=
"GetFileNameWithoutExtension：" + Path.GetFileNameWithoutExtension(path) +
"\r\n";
str +=
"GetExtension：" + Path.GetExtension(path) +
"\r\n";
str +=
"GetPathRoot：" + Path.GetPathRoot(path) +
"\r\n";
MessageBox.Show(str);
结果：
GetFullPath：C:\dir1\dir2\foo.txt
GetDirectoryName：C:\dir1\dir2
GetFileName：foo.txt
GetFileNameWithoutExtension：foo
GetExtension：.txt
GetPathRoot：C:\
转载于:https://www.cnblogs.com/siyunianhua/p/8331037.html
