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Possible Duplicate:
How do I format my code blocks?

How can I input the '#' character in the beginning of a line?

just like:


the '#' character automatically disappeared.

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marked as duplicate by mmyers Mar 10 '12 at 17:44

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

up vote 5 down vote accepted

Stack Exchange sites use Markdown; # marks at the beginning of the line indicate a header. If you're typing code, indent it by four spaces and it will be formatted properly (and possibly syntax highlighted, depending on the language):


You can also highlight a block of code and press the "Code Sample" ({}) button in the toolbar above, or press Ctrl+K, and it will indent all the selected lines

If it's not code and you really just want a # at the beginning of the line for some reason, you can also escape it with a \:


I can't think of any legitimate need for that though

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