What are the symbols that mark text comments in Html?

This time I will bring you the symbols that mark text comments in Html. What are the precautions for using the symbols that mark text comments in Html? The following is a practical case, let's take a look.

HTML comments, we often have to make some HTML comments next to some codes. This has many benefits, such as: convenient search, convenient comparison, and convenience for other programmers in the project team Understand your code, and it will facilitate your understanding and modification of your code in the future.

Start using HTML comments

HTML Comment syntax

<!--注释的内容-->

Example

<!--这里是注释-->
<a href="http://www.jb51.net">脚本之家</a>
<!--链接结束-->

The following is a more complete

1、<!--注释内容-->
2、//注释内容     (在css或javascript中插入单行注释)
3、/*注释内容*/   (在css或javascript中插入多行注释)

JavaScript comment

JavaScript comment syntax

//注释内容 /* 注释内容 */

CSS comments

As described in the HTML tutorial, comments also play a very important role in CSS documents and can help us remember the meaning of CSS. , the location loaded in the HTML document, etc.

Start with /* and end with */

CSS comment syntax


##Copy code

The code is as follows:

/* 注释内容 */ 示例 /* ----------文字样式开始---------- */ /* 白色12象素文字 */ .dreamduwhite12px { color:white; font-size:12px; } /* 黑色16象素文字 */ .dreamdublack16px { color:black; font-size:16px; } /* ----------文字样式结束---------- */

JavaScript comment example

Use two double slashes to comment the line

[code]
//document.write ("www.jb51.net");
Use slash stars to comment code blocks (multiple lines)

/* 
var jb51 = "www.jb51.net"; 
var jb51 = "du"; 
*/ 
[html]

Tip: Too many JavaScript comments will slow down JavaScript execution speed and loading speed, so JavaScript comments should be removed when publishing the website.

Tips: There cannot be (/* or */, JavaScript
regular expressions
may produce such code) in the comment block (/* ... */), which will generate Syntax error, so I recommend you to use // as comment code. In this tutorial, // will be used to mark comments.
I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

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