//Class
public class A
{
   public A(string json)
   {
        this = JsonSerializor.DeSerialize<T>(json) ; // 编译错误
   }
   public string Name{get;set;}
}
//Struct
public struct B
{
   public B(string json)
   {
        this = JsonSerializor.DeSerialize<T>(json) ; // OK，没有问题
   }
   public string Name{get;set;}
}