File0

using System;
using System.Linq;

class Program
{
  static void Main(string[] args)
  {
    Console.WriteLine("sdf");
    string[] txt = {"あ山あ","いい山","川うう"};
    var linqWhere = txt.Where(item => item.Contains("山"));
    foreach(var item in linqWhere)
    {
      Console.WriteLine(item);
    }
  }
}