string Name = Path.GetFileNameWithoutExtension("C;/aaa.txt")+"d"; 输出 aaad
string Pahts = Path.GetDirectoryName(LisI.Name);输出 C;/
string FileName=Path.GetFileName("C;/aaa.txt"); 输出 aaa.txt
string Name = Path.GetFileNameWithoutExtension("C;/aaa.txt")+"d"; 输出 aaad
string Pahts = Path.GetDirectoryName(LisI.Name);输出 C;/
string FileName=Path.GetFileName("C;/aaa.txt"); 输出 aaa.txt