About the Authors

Jian Li

Roles Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

Affiliation ZhanJiang Preschool Education Collage, Zhanjiang, China

Yu Hu

Roles Data curation, Methodology, Writing – review & editing

* guoshang751103@163.com

Affiliation BeiBu Gulf University, Qinzhou, China

Competing Interests

The authors have declared that no competing interests exist.