详解C# 泛型中的数据类型判定与转换

[System.Serializable]
public struct Property<T> where T : struct
{
  public string Label { get; }
  public T Value { get; }
  public PropertyType Type { get; }
  public Property(string label, T value, PropertyType type = PropertyType.Sub)
  {
    Label = label;
    Value = value;
    Type = type;
  }

  public static Property<T> operator +(Property<T> a, Property<T> b)
  {
    var prop = new Property<T>();
    if (a.Label == b.Label && a.Type == b.Type)
    {
      //怎么知道这个值到底是int还是float...
    }
    return prop;
  }
}

 public enum PropertyType
 {
   Main,
   Sub
 }

public static Property<T> operator +(Property<T> a, Property<T> b)
  {
    if (a.Label == b.Label && a.Type == b.Type)
    {
      object tempa = a.Value;
      object tempb = b.Value;

      object add;
      if (tempa is int)
      {
        add = (int)tempa + (int)tempb;
      }
      else if (tempa is float)
      {
        add = (float)tempa + (float)tempb;
      }
      //...其他类型
      else
      {
        return new Property<T>();
      }

      return new Property<T>(a.Label, (T)add, a.Type);
    }
    return new Property<T>();
  }

if (tempa.GetType() == typeof(float))
      {

      }
      //or
      if (typeof(T) == typeof(float))
      {

      }

public static Property<T> operator +(Property<T> a, Property<T> b)
  {
    if (a.Label == b.Label && a.Type == b.Type)
    {
      dynamic x1 = a.Value;
      dynamic x2 = b.Value;
      return new Property<T>(a.Label, (T)(x1 + x2), a.Type);
    }
    return new Property<T>();
  }

public static Property<T> operator +(Property<T> a, Property<T> b)
  {
    if (a.Label == b.Label && a.Type == b.Type)
    {
      if (typeof(T) != typeof(bool) && typeof(T)!=typeof(Enum))
      {
        dynamic x1 = a.Value;
        dynamic x2 = b.Value;
        return new Property<T>(a.Label, (T)(x1 + x2), a.Type);
      }
    }
    return new Property<T>();
  }

using UnityEngine;

public class MicrosoftCSharpTest : MonoBehaviour
{
  void Start()
  {
    dynamic a = 5.1f;
    dynamic b = 3;
    Debug.Log(a + b);

    var hp1 = new Property<int>("Hp", 41);
    var hp2 = new Property<int>("Hp", 5);
    var hp = hp1 + hp2;
    Debug.Log(hp.Label + " : " + hp.Value);

    var miss1 = new Property<float>("MissRate", .1f);
    var miss2 = new Property<float>("MissRate", .05f);
    var miss = miss1 + miss2;
    Debug.Log(miss.Label + " : " + miss.Value);
  }
}