您可以使用以下代码:
str = str.Substring (10); // to remove the first 10 characters.
str = str.Remove (0, 10); // to remove the first 10 characters
str = str.Replace ("NT-DOM-NV\\", ""); // to replace the specific text with blank
// to delete anything before \
int i = str.IndexOf('\\');
if (i >= 0) str = str.SubString(i+1);