using System;
using System.IO;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
var temp="str1 str2 str3 ";
var pattern=@"(\s)+";
var tempArr=Regex.Split(temp.Trim(),pattern);
Console.WriteLine("'{0}'", string.Join("','", tempArr));
}
}
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