class GenericTypeReflection
{
static void Main()
{
string listTypeName = "System.Collections.Generic.List`1";
Type defByName = Type.GetType(listTypeName);
Type closedByName = Type.GetType(listTypeName + "[System.String]");
Type closedByMethod = defByName.MakeGenericType(typeof(string));
Type closedByTypeof = typeof(List<string>);
Console.WriteLine(closedByMethod == closedByName);
Console.WriteLine(closedByName == closedByTypeof);
Type defByTypeof = typeof(List<>);
Type defByMethod = closedByName.GetGenericTypeDefinition();
Console.WriteLine(defByMethod == defByName);
Console.WriteLine(defByName == defByTypeof);
}
}
证明无论怎样获取对一个特定类型对象的引用,都只涉及一个这样的对象
GetGenericTypeDefinition 作用于已构造的类型 获取它的泛型类型定义
MakeGenericType 作用于泛型类型定义 返回一个已构造类型
输出
True
True
True
True