Business. Public schools mainly refer to schools run by state government departments; Private schools refer to schools or other educational institutions run by social organizations or individuals other than state institutions using non-state financial funds for the society according to law. Suzhou Affiliated Middle School of Nanjing University is invested and constructed by Nanjing Municipal People's Government and affiliated to Nanjing Education Bureau, so Suzhou Affiliated Middle School of Nanjing University is a public school.