C# (CSharp) Outracks.Fusion SumTree.Clear示例

示例#1

        public Optional <ListChange <T> > Clear <T>()
        {
            var oldTrueCount = _items.Sum();

            _items = _items.Clear();

            return(oldTrueCount == 0
                                ? Optional.None <ListChange <T> >()
                                : ListChange.Clear <T>());
        }