详情参考 https://pymssql.readthedocs.io/en/latest/ref/pymssql.html?highlightport#pymssql.connect
pymssql.connect(server., userNone, passwordNone, database, timeout0, login_timeout60, charsetUTF-8, as_dictFalse, host, appnameNone, port1433, conn_propertie…