C# 使用Dictionary复制克隆副本及比较是否相等

private void Test()
{
 Dictionary<string, string> dic = new Dictionary<string, string> { { "A", "a" }, { "B", "b" } };
 //方法一
 Dictionary<string, string> dic1 = new Dictionary<string, string>(dic);
 //方法二
 Dictionary<string, string> dic2 = Clone(dic) as Dictionary<string, string>;
 //方法三 --需要引用Newtonsoft.Json.dll
 Dictionary<string, string> dic3 = JsonConvert.DeserializeObject<Dictionary<string, string>>(JsonConvert.SerializeObject(dic2));
}

/// <summary>
/// 得到一个对象的克隆(二进制的序列化和反序列化)--需要标记可序列化
/// </summary>
public static object Clone(object obj)
{
 MemoryStream memoryStream = new MemoryStream();
 BinaryFormatter formatter = new BinaryFormatter();
 formatter.Serialize(memoryStream, obj);
 memoryStream.Position = 0;
 return formatter.Deserialize(memoryStream);
}

[Serializable]
public class People : IEquatable<People>
{
 public string Name { get; set; }
 public int Age { get; set; }
 public bool Equals(People other)
 {
  if (other is null)
   return false; 
  return this.Name == other.Name && this.Age == other.Age;
 }
}
 
private void Test()
{
 Dictionary<string, People> dic = new Dictionary<string, People> { { "A", new People {Name="SD",Age=0 } }, { "B", new People { Name = "FD", Age = 1 } } };
 //方法一
 Dictionary<string, People> dic2 = Clone(dic) as Dictionary<string, People>;
 //方法二 --需要引用Newtonsoft.Json.dll
 Dictionary<string, People> dic3 = JsonConvert.DeserializeObject<Dictionary<string, People>>(JsonConvert.SerializeObject(dic2));
}

/// <summary>
/// 比较
/// </summary>
private void Test()
{
 Dictionary<string, object> dic = new Dictionary<string, object> { { "A", 1 }, { "B", "b" } };
 Dictionary<string, object> dic2 = new Dictionary<string, object> { { "A", 1 }, { "B", "b" } };
 var a = dic.Equals(dic2); //结果 false
 var b = dic.SequenceEqual(dic2); //结果 true
}

namespace DeepCopy
{
 class DrawBase : System.Object, ICloneable
 {
  public List<string> listName = new List<string>();
  public string name = "old";
  public DrawBase()
  {
  } 
  public object Clone()
  {
   //任选一个
   return this as object;  //引用同一个对象
   //return this.MemberwiseClone(); //浅复制
   //return new DrawBase() as object;//深复制
  }
 } 
 class Program
 {
  static void Main(string[] args)
  {
   DrawBase rect = new DrawBase();
   Console.WriteLine(rect.name);
   DrawBase line = rect.Clone() as DrawBase;
   line.name = "new";
   line.listName.Add("123");
   Console.WriteLine(rect.name);
   Console.WriteLine(rect.listName.Count);
   Console.ReadLine();
  }
 }
}