How to escape html characters

HTML character escaping is a way of using special characters in HTML code. Because some special characters, such as the less than sign (<) and the greater than sign (>), will be interpreted as tags when written directly in the HTML code, causing problems in the parsing of the HTML code. At this time, you need to use HTML character escape to convert these special characters into specific code representations to avoid these problems.

The following 5 special characters need to be escaped in HTML code:

1. "<": Must be used when entering "<" in HTML code "<" instead.
2. ">": When entering ">" in HTML code, you must use ">" instead.
3. "&": When entering "&" in HTML code, you must use "&" instead.
4. “‘”: When entering “‘” in HTML code, you must use “'” instead.
5. """: When entering """ in HTML code, you must use """ instead.

These escape characters are very common in HTML and how they are used and meanings are also relatively fixed. Using these special characters directly in HTML code often causes parsing errors and unnecessary trouble.

In actual applications, HTML character escaping should pay special attention to some common scenarios. For example, when using a form, if the form contains HTML code, HTML characters must be escaped in the form input box to avoid conflicts with the parsing of form attributes or tags. In addition, when using a rich text editor, you must also Pay attention to HTML character escaping to ensure that the editor can handle some special characters normally.

In short, in the HTML writing process, the correct use of HTML character escaping can avoid many unnecessary problems and protect the HTML page Normal display and use. Therefore, in the teaching process of HTML, special emphasis should be placed on the importance of HTML character escaping, and students should be provided with detailed practical application examples and usage methods. In this way, students can master good HTML writing habits , and avoid common mistakes in practical applications.

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