2. Do with two-way linked list data structure, write a communication management system.The system shall complete the following several aspects of the function. Input information- enter () Display information, display () Looking to name as a keyword, the search () Delete information-- delete () Save, save () Load, the load () Design requirements: (1) each message contains at least name (name), gender (sex), work units (the company), telephone (Tel), etc. As a complete system, should have a friendly interface and strong ability of fault tolerance.

75-4.cpp

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