Several comments in JSP_html/css_WEB-ITnose

1. Multi-line comments

1     <!-- 注释12 3         注释2 注释34 5         -->

or

1     <!-- 注释12 3         ……4 5     注释n6 7     //-->

2. The difference between multi-line comments is that the comment content will not be sent to the client and will be ignored by the JSP engine

1     <%-- 这里的内容不会被发送到客户端2 3     --%>

3. Single-line comments

1     // 注释当前行

a. Reference, usually used at the beginning of jsp, such as

1     <%@ page import="java.lang.util.Date" %>

b. Nested Java code, such as

1    <%  Date now = new Date(); %>