C method of getting the last few digits of a string

This article is an example of how C# gets the last few digits of a string. Share to everybody for everybody reference. Specific implementation methods are as follows:

#region  Get the last few digits  public string GetLastStr(string str,int num)
/// <summary>
///  Get the last few digits 
/// </summary>
/// <param name="str"> The string to intercept </param>
/// <param name="num"> The specific number of digits returned </param>
/// <returns> The string that returns the result </returns>
public string GetLastStr(string str, int num)
{
  int count = 0;
  if (str.Length > num)
  {
 count = str.Length - num;
 str = str.Substring(count, num);
  }
  return str;
}
#endregion

Hopefully this article has helped you with your C# programming.