问题
What is the difference between comments using 3 instead of 2 dashes?
Example <!--comment here--> vs <!---comment here--->
Also do people find it more readable if there's a space between the dashes and the text e.g.<!-- comment here -->
回答1:
Two dashes signify an html comment. Content within html comments are included in the output of CF pages ie viewable in the html source.
Three dashes signify a ColdFusion comment. Anything enclosed within the comments is ignored by the ColdFusion compiler, and is not included in the html output.
来源：https://stackoverflow.com/questions/10940195/difference-between-comments-with-2-dashes-vs-3-in-coldfusion