Prototype.cs

namespace TemplateMethodPattern;

internal abstract class AbstractClass
{
    protected abstract void PrimitiveOperation1();

    protected abstract void PrimitiveOperation2();

    public void TemplateMethod()
    {
        Console.WriteLine("-------Begin-------");
        PrimitiveOperation1();
        PrimitiveOperation2();
        Console.WriteLine("-------End-------");
    }
}

internal class ConcreteClassA : AbstractClass
{
    protected override void PrimitiveOperation1()
    {
        Console.WriteLine("具体类A 方法1 的实现");
    }

    protected override void PrimitiveOperation2()
    {
        Console.WriteLine("具体类A 方法2 的实现");
    }
}

internal class ConcreteClassB : AbstractClass
{
    protected override void PrimitiveOperation1()
    {
        Console.WriteLine("具体类B 方法1 的实现");
    }

    protected override void PrimitiveOperation2()
    {
        Console.WriteLine("具体类B 方法2 的实现");
    }
}