c string two ways to remove Spaces of removes both ends of Spaces

Ways to use strings:

trim (); Whitespace is removed from the string

split (); cutting

string. join (); The connection

class Program
    {
        static void Main(string[] args)
        {
            // The original string 
            string str = "  hello      world, you    good   The world    !    ";
            // Remove both ends of the space 
           str= str.Trim();
            // Space cut 
           string [] strArray= str.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
            // Connect with Spaces 
           string newStr= string.Join(" ", strArray);
            Console.WriteLine(newStr);
            Console.ReadKey();
        }
    }

Use the regular method:

class Program
    {
        static void Main(string[] args)
        {
            // The original string 
            string str = "  hello      world, you    good   The world    !    ";
            string s = Regex.Replace(str, @"\s+", " ").Trim();
            Console.WriteLine(s);
            Console.ReadKey();
        }
    }