Zhang Jingjing, an English teacher in Binhai Campus of Tongan No.1 Middle School, was born in February 1984. Zhang Jingjing, female, doctor of science, associate professor. In September 2003, he joined the Statistics Department of Tongji University, and in June 201February, he obtained the doctor of science degree from Tongji University (tutor: Professor Liang, major: probability theory and mathematical statistics). 20 12 joined the school of science of Shanghai university of technology in July, and was promoted to associate professor in July 2020. Since 2007, he has been engaged in the research and teaching of probability theory and mathematical statistics, published many high-quality SCI journals, and presided over 2 national projects.