scatter()

https://blog.csdn.net/AnneQiQi/article/details/64125186?ops_request_misc=&request_id=&biz_id=102&utm_term=python%20scatter()%E5%87%BD%E6%95%B0&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduweb~default-0-64125186.142^v8pc_search_result_control_group,157^v4control&spm=1018.2226.3001.4187