cmd command to export import oracle database table

Export:

　　Do data: exp username / pwd @ localhost: 1521 / orcl file = f: /backup.dmp rows = n  

　　To the data: exp username / pwd @ localhost: 1521 / orcl file = f: /backup.dmp

Import:

　　imp username/pwd@localhost:1521/orcl file=C:/360/sdjsj.dmp full=y ignore=y