Introduction - If you have any usage issues, please Google them yourself
Find records: the name of a keyword, find and display the record. If you can not find, the name appears as NULL.
Add Record: order by name of the current record by adding contacts, and then displays the first record.
Revision History: modify the current record, display the current record. Dan would like to name keyword, not allowed to be modified.
Delete Record: Deletes the current record, and then displays the first record (assuming the name is a keyword, not allowed the same name record, that name can be specified uniquely identify the record to be deleted).
First record: the current record pointer to the first node, if the node is not the first move.
Previous record: current record pointer will move forward a node, if the node is not the first move.
After a record: the current record pointer back one node, if the end node is not fixed.
Last record: the end of the current record pointer to the node, if the end node is not fixed.
Load: transferred from the file to save