private void Button_Click(object sender, RoutedEventArgs e)
{
string text = ROD.Text;
SingletonTest singleton = SingletonTest.Instance;
if (Jmeno.Text == "" || Prijmeni.Text == "" || !DateTime.TryParse(DOB.Text, out DateTime result) || !text.Contains("/"))
{
MessageBox.Show("Zadejte všechny parametry");
}
else
{
singleton.AddToList(Jmeno.Text, Prijmeni.Text, Convert.ToString(result), ROD.Text);
}
}
static void Main(string[] args)
{
//问题：单例类和静态类的区别
//1、静态类不能控制其初始化，
//2、单例类已创建就不会被GC回收（静态属性变量不会被GC清除）
//3、静态类不能继承类也不能实现接口
//4、单例类可以实现多态性
var single1 = Singleton.GetInstance();
var single2 = Singleton.GetInstance();
Console.WriteLine(single1 == single2 ? "我是相同的" : "我是不同的");
var singletest1 = SingletonTest.GetSingletonTest();
var singletest2 = SingletonTest.GetSingletonTest();
Console.WriteLine(singletest1 == singletest2 ? "我是相同的" : "我是不同的");
Console.ReadKey();
}