如何注释掉 XML 中的标记块?
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How do I comment out a block of tags in XML?
提问by Jonas
How do I comment out a block of tags in XML?
如何注释掉 XML 中的标记块?
I.e. How can I comment out <staticText>and everything inside it, in the code below?
即如何<staticText>在下面的代码中注释掉其中的所有内容?
<detail>
<band height="20">
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text><![CDATA[Hello World!]]></text>
</staticText>
</band>
</detail>
I could use <!-- staticText-->but that's just for single tags (as what I know), like //in Java and C. I would like something more like how /** comment **/can be used in Java and C, so I can comment out longer blocks of XML code.
我可以使用,<!-- staticText-->但这只是用于单个标签(据我所知),就像//在 Java 和 C 中一样。我想要更像如何/** comment **/在 Java 和 C 中使用的东西,所以我可以注释掉更长的 XML 代码块。
回答by Noon Silk
You can use that style of comment across multiple lines (which exists also in HTML)
您可以在多行中使用该样式的注释(也存在于 HTML 中)
<detail>
<band height="20">
<!--
Hello,
I am a multi-line XML comment
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text><![CDATA[Hello World!]]></text>
</staticText>
-->
</band>
</detail>
回答by Kasper van den Berg
You can wrap the text with a non-existing processing-instruction, e.g.:
您可以使用不存在的处理指令包装文本,例如:
<detail>
<?ignore
<band height="20">
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text><![CDATA[Hello World!]]></text>
</staticText>
</band>
?>
</detail>
Nested processing instructions are not allowed and '?>' ends the processing instruction (see http://www.w3.org/TR/REC-xml/#sec-pi)
不允许嵌套的处理指令,'?>' 结束处理指令(参见http://www.w3.org/TR/REC-xml/#sec-pi)
回答by Boldewyn
If you ask, because you got errors with the <!-- -->syntax, it's most likely the CDATA section (and there the ]]>part), that then lies in the middle of the comment. It shouldnot make a difference, but ideal and real world can be quite a bit apart, sometimes (especially when it comes to XML processing).
如果你问,因为你的<!-- -->语法有错误,很可能是 CDATA 部分(还有那]]>部分),然后位于评论的中间。它不应该有什么不同,但有时(尤其是在涉及 XML 处理时),理想世界和现实世界可能会有很大的不同。
Try to change the ]]>, too:
也尝试更改]]>:
<!--detail>
<band height="20">
<staticText>
<reportElement x="180" y="0" width="200" height="20"/>
<text><![CDATA[Hello World!]--><!--]></text>
</staticText>
</band>
</detail-->
Another thing, that comes to mind: If the content of your XML somewhere contains two hyphens, the comment immediately ends there:
我想到的另一件事是:如果某个地方的 XML 内容包含两个连字符,则评论会立即结束:
<!-- <a> This is strange -- but true!</a> -->
--------------------------^ comment ends here
That's quite a common pitfall. It's inherited from the way SGML handles comments. (Read the XML spec on this topic)
这是一个很常见的陷阱。它继承自 SGML 处理注释的方式。(阅读有关此主题的 XML 规范)
回答by Delan Azabani
Actually, you can use the <!--...--> format with multi-lines or tags:
实际上,您可以将 <!--...--> 格式与多行或标签一起使用:
<!--
...
...
...
-->
回答by Avijit Karmakar
Here for commenting we have to write like below:
在这里评论我们必须写如下:
<!-- Your comment here -->
Shortcuts for IntelliJ Idea and Eclipse
IntelliJ Idea 和 Eclipse 的快捷方式
For Windows & Linux:
对于 Windows 和 Linux:
Shortcut for Commenting a single line:
注释单行的快捷方式:
Ctrl+ /
Ctrl+ /
Shortcut for Commenting multiple lines:
注释多行的快捷方式:
Ctrl+ Shift+ /
Ctrl+ Shift+/
For Mac:
对于 Mac:
Shortcut for Commenting a single line:
注释单行的快捷方式:
cmnd+ /
cmnd+ /
Shortcut for Commenting multiple lines:
注释多行的快捷方式:
cmnd+ Shift+ /
cmnd+ Shift+/
One thing you have to keep in mind that, you can't comment an attribute of an XML tag. For Example:
您必须记住的一件事是,您不能对 XML 标记的属性进行注释。例如:
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
<!--android:text="Hello.."-->
android:textStyle="bold" />
Here, TextViewis a XML Tag and textis an attribute of that tag. You can't comment attributes of an XML Tag. You have to comment the full XML Tag. For Example:
这里,TextView是一个 XML 标签,text是该标签的一个属性。您不能注释 XML 标记的属性。您必须注释完整的 XML 标记。例如:
<!--<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello.."
android:textStyle="bold" />-->
回答by svg
You can easily comment out the data using this:
您可以使用以下方法轻松注释掉数据:
<!--
<data>
<data-field1></data-field1>
<data-field2></data-field2>
<data-field3></data-field3>
</data>
-->
method of commenting in xml.
xml中注释的方法。
回答by TheSuMiT.
Syntax for XML :
<!--Your comment-->
XML 的语法:
<!--Your comment-->
eg.
例如。
<?xml version = "1.0" encoding = "UTF-8" ?> <!--here is your comment :) --> <class_list> <student> <name></name> <grade>A</grade> </student> </class_list>
<?xml version = "1.0" encoding = "UTF-8" ?> <!--here is your comment :) --> <class_list> <student> <name></name> <grade>A</grade> </student> </class_list>
XML Comments Rules
XML 注释规则
Comments cannot appear before XML declaration.
Comments may appear anywhere in a document.
Comments must not appear within attribute values.
Comments cannot be nested inside the other comments.

