.NET 6中为record类型自定义Equals方法

public record DemoRecord(int id);

public class DemoClass
{
    public DemoClass(int id)
    {
        this.id = id;
    }

    public int id { get; }
}

public record A(int[] ids);

public class DemoClass
{
    public override bool Equals(object obj)
    {
        if (obj == null || obj is not DemoClass demoClass)
        {
            return false;
        }
        return id.Equals(demoClass.id);
    }
}

public virtual bool Equals(A other)
{
    return this == other || (other != null && this.EqualityContract == other.EqualityContract && EqualityComparer<int[]>.Default.Equals(this.<ids>k__BackingField, other.<ids>k__BackingField));
}

public record B(int[] ids)
{
    public virtual bool Equals(B b)
    {
        if (b is null) return false;
        return ids.SequenceEqual(b.ids);
    }
}