public void CountTest()
{
_target.Add(1, "1");
_target.Add(2, "2");
_target.Add(3, "3");
Assert.AreEqual(3, _target.Count());
}
static void Main(string[] args)
{
MyDictionary <string, int> myDictionary = new MyDictionary <string, int>();
myDictionary.Add("Denizli", 20);
myDictionary.Add("Ankara", 06);
Console.WriteLine(myDictionary.Count());
}