scott登录提醒：the account is locked

scott登录提示：the account is locked
用SQL Plus登录时输入:conn scott/tiger
给出提示:
          ERROR:
          ORA-28000: the account is locked
         
解决方法：
（1）以DBA的身份登录另一个用户,输入:
     c:> sqlplus sys/sys as sysdba
（2）为scott解锁,输入:
       alter user scott account unlock;