'宣言 Public MustOverride ReadOnly Property Count As System.Integer
'使用法 Dim instance As DataHandler Dim value As System.Integer value = instance.Count
public abstract System.int Count {get;}
'宣言 Public MustOverride ReadOnly Property Count As System.Integer
'使用法 Dim instance As DataHandler Dim value As System.Integer value = instance.Count
public abstract System.int Count {get;}