A leader is a line that connects some annotation to a feature in a drawing. Leaders and their annotation are associative, which means if you modify the annotation, the leader updates accordingly. Do not confuse the Leader object with the leader line AutoCAD automatically generates as part of a dimension line.
引线是图形中将注释连接到特征的线。引线与其注释是关联的，也就是说，如果用户修改注释，引线也会随着更新。请勿混淆 Leader 对象和 AutoCAD 作为尺寸线的一部分而自动生成的引线。
For more information about leaders, see “Create Text with Leaders” in the AutoCAD User's Guide.
有关引线的详细信息，请参见《用户手册》中的“创建带引线的文字”。
