Hello ZhangHuangbin
first of all : i wish you happy new year with my best wishes of good been !
next : i ve tried ldapseach every thing works fine even sending recieving mails using ldap authentification ,
what does not work is configuring the auto complete adress book ; when i use the tutorial's bind instructions , roundcube is down !
and when i keep the default bind 'mail=%u@%d,ou=Users,domainName=%d,o=domains,dc=domaine,dc=net', it works fine but i can"t get the adressbook and it says that it can't find domain.net even if i can ping it and make ldapseach over it .
wish 2015 comes with solutions 
have a good day and thank you for your awsome support