Why Cannot View the Created Account under AAA though Command after Creating the

Handling Process
Q:
Because the level logging in to the system is not the highest level, so user only can view the account that is equal to or less than the level
1、 Create 15 level user and 4 groups account, and it is hidden after logging in to the system in admin account, the total count is 7, and only display 4 accounts.
aaa
local-user test1 password simple Admin@123
local-user test1 service-type telnet
local-user test1 level 3
local-user aaa password simple 123123
local-user admin password cipher ]MQ;4\]B+4Z,YWX*NZ55OA!!
local-user admin service-type web terminal
local-user admin level 3
local-user admin ftp-directory flash:
local-user huawei password cipher ]MQ;4\]B+4Z,YWX*NZ55OA!!

2、 log in to the system in 15 level account test, the all accounts can be viewed, the total accounts count is 7, and 7 accounts are printed
[sysname-aaa]dis th
11:57:04 2011/09/23
#
aaa
local-user test1 password simple Admin@123
local-user test1 service-type telnet
local-user test1 level 3
local-user admini password simple Admin@123
local-user admini service-type web telnet
local-user admini level 15
local-user test2 password simple Admin@123
local-user test2 service-type terminal telnet
local-user test2 level 15
local-user aaa password simple 123123
local-user admin password cipher ]MQ;4\]B+4Z,YWX*NZ55OA!!
local-user admin service-type web terminal
local-user admin level 3
local-user admin ftp-directory flash:
local-user huawei password cipher ]MQ;4\]B+4Z,YWX*NZ55OA!!
local-user abc password simple Admin@123
local-user abc level 14


Root Cause
NullSolution
Suggestions
The user can only view the accounts information that are equal to and less than its level.