Finally solvedPerfectly solved the [html][/html] and [code][/code] problems in dedecms. Because I am not very proficient in PHP, I spent several days doing the regularization to get it right. This time I mainly modified it. I'm so happy about the running and code functions of discuz5.5 and dedecms3.1. I've started the data transfer work and new site template production for the new site. By then, it will be a brand new site. If you have any questions, you can communicate with me. Now the blueidea, 51js and dedecms forums asked this question and they didn't answer it, but it didn't affect the effect and I learned something myself.
The above introduces the dedecms tag, which perfectly solves the [html][/html] and [code][/code] problems in dedecms, including the content of the dedecms tag. I hope it will be helpful to friends who are interested in PHP tutorials.