Navicat 连接Oracle 数据库时出现ORA-12541:TNS:无监听程序

笔者是先安装Oracle12c时出现这个问题，找了网上众多博客仍未解决此问题，之后卸载也不干净，使用了删除注册表的方式卸载，学习了此篇博客的卸载方法https://blog.csdn.net/u010801439/article/details/70148100加粗样式，重新安装了11g后还是出现此问题，最后是通过将app\13169\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora改掉后才可以

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = F:\app\13169\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = “EXTPROC_DLLS=ONLY:F:\app\13169\product\11.2.0\dbhome_1\bin\oraclr11.dll”)
)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = F:\app\13169\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
) 此段是后加的一段
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)

ADR_BASE_LISTENER = E:\app\VULCAN