html如何注释

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????1??html??????￡????<??-- ????html????????????д??????????????棬?????????????????? -->2??css??????￡? js????//??????? ????

????// ?????????? ?????

???????У?1 2 3 4 <meta http-equiv=??Content-Type?? content=??text/html; charset=utf-8??/>???? 5 ??? 6 <script type=??text/??

????1?? 2??//??????? ????css??javascript?в????????? 3?? ?????????css??javascript?в??????????