'宣言 Public Operator <>( _ ByVal left As Item(Of T), _ ByVal right As Item(Of T) _ ) As Boolean
'宣言
Public Operator <>( _ ByVal left As Item(Of T), _ ByVal right As Item(Of T) _ ) As Boolean
public bool operator !=( Item<T> left, Item<T> right )
Item<T> クラス Item<T> メンバ