Windows: exp 'sys/change_on_install@instance as sysdba' tables=scott.emp
Unix or Linux (you need to 'escape' the single quote): exp /'sys/change_on_install@instance as sysdba/' tables=scott.emp
VMS (use [double_quote][single_quote]...[single_quote][double_quote]): exp "'sys/change_on_install@instance as sysdba'" tables=scott.emp
注意：VMS的语法同样适用windows，Unix，Linux。
