<!-- here is some comment --
^
|
what can be here apart from '>'?
XML似乎不喜欢’ – ‘里面的评论。我读某处’ – ‘切换一些模式内<！ ...>事物，但是<！ - - - > (偶数个–s)似乎也无效。如果是一些历史特色，什么是“亲”的一部分呢？ (“contra”部分是不能在评论中)。
什么是复杂的评论处理的原因是不只是’ – >’结束注释并允许’ – ‘里面？
从标准文件：
http://www.w3.org/TR/REC-xml/#sec-comments
[Definition: Comments may appear anywhere in a document outside other
markup; in addition,they may appear within the document type
declaration at places allowed by the grammar. They are not part of the
document’s character data; an XML processor may,but need not,make it
possible for an application to retrieve the text of comments. For 07001,the string ” — ” (double-hyphen) must not occur within comments.] Parameter entity references must not be recognized within comments.
