为什么这种类型不平等？

Question

using System;
using System.Reflection;

namespace App
{
  public class A<T>
  {
    public WonderfulClass<T> field;
  }

  public class WonderfulClass<T> { }

  class Programm
  {
    static void Main(string[] args)
    {
      Type t = typeof(A<>);

      Type t1 = t.GetField("field").FieldType;
      Type t2 = typeof(WonderfulClass<>);

      //Why t1 and t2 are different?
      Console.WriteLine(t1 == t2 ? "Equal" : "Not Equal");
    }
  }
}

Answer 1

如果您检查属性,您会注意到:

t2.IsGenericTypeDefinition
true
t1.IsGenericTypeDefinition
false

因此,虽然t2是实际定义,t1但已经应用了它的泛型类型参数.

请注意以下事项:

t1.GetGenericTypeDefinition() == t2
true