# 6. 注釋 可以用注釋加入描述性文本，他們并不在模板引擎中輸出。注釋可以有助于你的記憶或者想其他人解釋你的VTL語句正在做什么。 ``` ## This is a single line comment. ``` 單行注釋以\#\#開始，并在本行結束。如果需要加入多行注釋，并不需要加入很多的單行注釋。多行注釋，以\#\*開始并以\*\#結束可以處理這種情況。 ``` This is text that is outside the multi-line comment. Online visitors can see it. #* Thus begins a multi-line comment. Online visitors won't see this text because the Velocity Templating Engine will ignore it. *# Here is text outside the multi-line comment; it is visible. ``` 下面事一些例子說明單行注釋和多行注釋如何工作。 ``` This text is visible. ## This text is not. This text is visible. This text is visible. #* This text, as part of a multi-line comment, is not visible. This text is not visible; it is also part of the multi-line comment. This text still not visible. *# This text is outside the comment, so it is visible. ## This text is not visible. ``` 還有第三種注釋， VTL 注釋塊，可以用來存儲諸如文檔作者、版本信息等。 ``` #** This is a VTL comment block and may be used to store such information as the document author and versioning information: @author @version 5 *# ```