C Language communication travel card background system

1. Communication travel card background system .
Communication travel card is a small program in our country to identify where mobile phone users have been , The basic principle is that when the mobile phone is connected to different base stations , The base station will record the relevant information of the mobile phone user , And save it , When scanning the QR code of the communication travel card on the mobile phone, the travel information used by the mobile phone will be printed .
Please study C Relevant knowledge in language , Design a background base station management system that simulates the communication travel card , It includes the following main functions （ Not limited to the following ):
Realize the management of mobile phone users at the base station , Including adding relevant information （ cell-phone number , Identity, etc , Add when the mobile phone is connected , Simulation by input ), Query relevant personnel information , Delete related information （ exceed 15 Delete after days );
Save the information of all connected persons of the corresponding base station through files ;
Realize the management of base stations , Including adding base station information , Query the information of all connected people in the site , Delete site information ;
Realize the query function of personal trip , Enter the mobile phone number to query the trip ;
In addition to the above basic functions , You can add the functions you think you need .

Source download

link ：https://pan.baidu.com/s/1JJs9vbZahUCB6cQvXLgAVg?pwd=1111
Extraction code ：1111