登录isqlpus提示ERROR - ORA-12541: TNS: 无监听程序，但事实上监听启动并配置了！

在我电脑上装了2个oracle实例，一个是orcl，一个是test。
我启动两个实例：
net start oracleserviceorcl

net start oracleservicetest

然后启动监听：
lsnrctl start

成功启动后，查看监听了几个实例：
lsnrctl status

服务摘要..
服务 "orcl" 包含 1 个例程。
例程 "orcl", 状态 UNKNOWN, 包含此服务的 1 个处理程序...
服务 "test" 包含 1 个例程。
例程 "test", 状态 UNKNOWN, 包含此服务的 1 个处理程序...
命令执行成功
以上说明这个监听器监听了2个实例，没错吧？

然后我启动isqlplus:
isqlplusctl start成功。

启动emctl：
set oracle_sid=orcl
emctl start dbconsole
set oracle_sid=test
emctl start dbconsole至此，所有的服务都已经启动完成并成功。

登录两个实例的oem，都能成功。

但是登录isqlplus，输入用户名密码，两个实例 提示ERROR - ORA-12541: TNS: 无监听程序！

用户名：system
密码 ：admin
连接标识符：localhost:1521/orcl

什么原因呢？我感觉没有什么错啊。既然能登录oem，说明监听程序配置的没有问题，因为登录oem的时候是要用到监听的。不知道为什么，请大家告诉我。
谢谢大家。

对了，我的监听配置文件也贴上吧：
listener.ora

# listener.ora Network Configuration File: D:\oracle10.2.0\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(SID_NAME = orcl)
)
(SID_DESC =
(GLOBAL_DBNAME = test)
(SID_NAME = test)
)
)

LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.95)(PORT = 1521))
)


tnsnames.ora

# tnsnames.ora Network Configuration File: D:\oracle10.2.0\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

CHINANTN_100 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.100)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = chinantn)
)
)

CHINANTN100_JNHHHOME =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.100)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = chinantn)
)
)

TEST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 493ae2c2569d45b)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = test)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)