'宣言 Public MustInherit Class C1TextLayout.Line
'使用法 Dim instance As C1TextLayout.Line
public abstract class C1TextLayout.Line
'宣言 Public MustInherit Class C1TextLayout.Line
'使用法 Dim instance As C1TextLayout.Line
public abstract class C1TextLayout.Line
System.Object
C1.WPF.Document.Util.C1TextLayout.Line