Simplified-Traditional Chinese Conversion in WordPress

When we surf the internet, we often find that many websites have traditional Chinese versions, and by clicking a button on the navigation bar, the text on the webpage can be switched from simplified Chinese to traditional Chinese. Many web hosting providers also offer products similar to "Simplified-Traditional Converter," which, of course, come with a fee. So, how can we enable our blog to support simplified-traditional Chinese conversion without spending any money?

We notice that many bloggers in China add Google's translation widget to their homepages, allowing Google to translate the webpage content from simplified Chinese into traditional Chinese or English with simple settings. The simplified-traditional conversion method I'm going to introduce is implemented through JavaScript. Have you noticed the button below this site's banner? Below, I will explain using WordPress as an example: