C Language book rental management system

Book rental management system

explain : Each student chooses a topic , Each topic should contain the following : establish ( Input )、 Show 、 modify 、 add to 、 Delete 、 Query and sort these parts .

The basic requirements
Data entry : Input the data required by the system , Use structure array or linked list to organize data ( Use the linked list to score extra points )
data storage : Store the entered data , Store the entered data in the form of files
Data reading and writing : Read and write data
Data modification : Update the data , You can insert new data , Modification of old data
Data deletion : Delete data , Delete the corresponding record according to the specific topic
Data query : Query the data as required , Including simple query and combined query
Data statistics : Make statistics on the data as required , Including simple statistics and comprehensive statistics
Data sorting : Sort the data as required , Including ascending sort and
null : Including number and string sorting
Data reports : Print reports on data as required , Print the report according to the specified report format

Source download

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