public CombinClass Inner(CombinClass obj)
{
CombinClass ret = new CombinClass();
if (obj == null)
{
return(ret);
}
this.ForEach(a => {
if (obj.Contains(a))
{
ret.Add(a);
}
});
return(this);
}
public CombinClass Subtract(CombinClass obj)
{
CombinClass ret = new CombinClass();
if (obj == null || obj.Count == 0)
{
return(this);
}
this.ForEach(a => {
if (!obj.Contains(a))
{
ret.Add(a);
}
});
return(ret);
}
public CombinClass Union(CombinClass obj)
{
CombinClass ret = new CombinClass();
if (obj == null)
{
return(this);
}
ret.AddRange(obj);
this.ForEach(a => {
if (!ret.Contains(a))
{
ret.Add(a);
}
});
return(ret);
}