C Language course design topic

Preface
This experimental instruction is based on the completion of the prerequisite course 《 Programming basics （C）》 Based on the use of the curriculum design guide . Programming basics （C） Course design is one of the important practical links of computer technology , It is a comprehensive exercise after students finish the basic course of program design . Through curriculum design , Consolidate and deepen students' understanding of the basic ideas of programming , Guide students to master the basic process and technology of complex program design , utilize C Language for software design , Solve practical problems , And master the basic method of writing program design instruction documents .

The design topics selected in this book have different application types for students to choose . The complete solution to some of the problems is not covered in the prerequisite course , Need students to consult 、 Only after self-study of relevant reference books and materials can we complete , It is helpful to improve students' ability of consulting materials and self-study .

This book is intended for non computer major undergraduates , The course design time is 2 Zhou .
The design environment is the school computer center , One question for each person , One computer per person .
Software environment requirements ：windows operating system ,C Language development tool software （ It is recommended to use C Free, dev-c,visual studio）.
Catalog
Chapter one Programming language （C） Course design description - 3 -
Second articles Course design topic - 5 -
Topic 1 Grade book - 5 -
Topic two Guess the number game - 6 -
Topic three Mathematical oral arithmetic competition system - 7 -
Topic four Small commodity management system - 8 -
Third articles reference - 9 -

Chapter one Programming language （C） Course design description
One . The purpose of the course design is
This course design is one of the important practical links of computer technology , It's after the students finish their study 《 Programming basics （C）》 A comprehensive exercise after the course . The purpose and task of this course design ：

1. Consolidate and deepen students' understanding of the basic ideas of programming ;
2. Master the basic process and technology of complex program design ;
3. utilize C Language for software design , Solve practical problems ;
4. Master the ability to write program design instructions
   Two . Curriculum design requirements
5. Analyze the requirements of the course design topic ;
6. Write a detailed design description ;
7. Write program code , Debug the program to make it work correctly ;
8. The designed software shall be easy to operate and use , There is tidiness 、 Beautiful interface ;
9. Submit the course design report after the design is completed （ The electronic , The cover and assignment need to be printed ） And source code files .
   3、 ... and . Content of course design
10. Choose one of the course design topics provided in the guide , Each person completes independently , The selected topic cannot be changed ;
11. The main operation interface provided by the user shall be in the form of menu .
12. The final submitted course design results include ：
    a) A printed copy of the cover and assignment ;
    b) Electronic version of course design report ;
    c) Source program files ;
    Four . Contents of the course design report ：
13. Course design title 、 Class number 、 Student number 、 Student name and course design start and end date ;
14. Purpose and requirements of course design ;
15. Course design task content ;
16. Detailed design description ;
    5． Software instructions ;
17. Experience of course design ;
18. appendix ：1 reference 2 Program listing .
    5、 ... and . Standard for evaluation ：
    Students' Course Design scores are mainly from the design link （ workload 、 Design ability ） 、 Oral defense （ Operation demo 、 Design explanation 、 Question answering ）、 Reporting link （ Curriculum design report , Documentation for each phase ）、 Performance evaluation at ordinary times .
    1、 Design link 40％：
    1） Check the workload of students to complete the design , From the difficulty 、 Inspection of completion status, etc ( Occupy 20％);
    2） Check whether there is independent analysis 、 Ability to solve problems , It mainly examines the completion of tasks within the specified time , How about the quality of completion , How to realize the function , How about the interface effect ( Occupy 20%);
    2、 Reporting link 20％：
    Curriculum design report ： Whether to write the curriculum design report carefully , Whether the content is objective and realistic (20%);
    3、 Oral defense 20％：
    1） Operation demonstration and design explanation ： It mainly tests students' operation ability 、 Proficiency, etc ( Occupy 10％);
    2） Question answering ： Whether they can correctly answer the questions raised by the instructor ( Occupy 10％);
    4、 Usual performance 20％
    1） Attendance （10%）
    2） Class status （10%）

6、 ... and . Schedule ：
First of all ~ Two days Choose a course design topic , Requirements of the analysis subject , Prepare detailed design description ;
On the third day Access to information
Fourth ~ Six days Programming ; Programming and debugging ;
The seventh ~ Eight days The test program ; Perfect the system function ;
Ninth days Write a course design report
Tenth days interview , Submit the course design report .

Second articles Course design topic
Topic 1 Grade book

1. The design requirements
   Make a record book , Each student information includes ： Student number 、 full name 、 Course number 、 Course name 、 achievement 、 credits . Save information as a file , To enter information 、 Read out and display information 、 Delete the information , Query information and other functions .

2. Basic function

1） Record the following data in the score book ： Student number 、 full name 、 Course number 、 Course name 、 achievement 、 credits , All grades are scored on a 100 point scale .
2） Check the student number when entering information 、 Course number 、 achievement 、 The legitimacy of credits .
Student number ：8 Digit number ; Course number ：5 Digit number ; achievement ：0 ~ 100 Integer between , credits ：1~ 5 The real number between .
3） Add grades
4） Delete grades
5） Query personal scores 、 Individual total credits .
6） Take the course number as the key word , Statistics of courses , Include ：
Count the total number of people in each score segment , Proportion of people . The score section is divided into excellent （>=90), good （80-89）, qualified （60-79）, unqualified （<60).
Count the average score of a course , The highest , Failure rate, etc
7） Information is stored as a file .

3. Expand functions ：
   Display by keyword 、 Other user-defined extended functions such as permission verification for modifying grades .

Source download

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

Topic two Guess the number game

1. The design requirements ：
   The game can be randomly generated by a program N Digit number , Input by a user N Digit number , As a number to be guessed （ The numbers don't repeat ）. After the player begins to guess , There can be M Enter a number to match the number to be guessed above at one time . Every time the user enters , The system gives the guess result ：A Indicates that the position is correct and the number is correct ,B Indicates that the number is correct and the position is incorrect . such as ：2A1B, Express 2 The bit position is correct and the number is correct ,1 The digit number is correct but the position is incorrect .
   After a guess , Game over . if M I'll run out of opportunities , The game is over . The menu format is shown in the figure .

2. Basic function
   1） Generate data to be guessed , Random generation , Or entered by the user . Need to judge legitimacy ：N Digit numbers do not appear repeatedly .
   2） Provide the most M One chance to guess , Each feedback guess result . The guess ends immediately after success and returns to the main menu .
   3） Enter the user name before the game starts , First use for user registration . Whether the game is successful or not can return to the main menu .
   4） View results ： View the historical guess results of a user , Minimum number of guesses , The success rate ;
   5） Parameters M,N You can set it up freely

3. Expand functions ：
   Record the guess results of different game users , Set guess leaderboard , Set game difficulty and other custom expansion functions .

4. The test sample
   Data to be guessed ： 3792
   First guess ： 1234
   result ： 0A2B
   Second guess ： 5678
   result ： 0A1B
   Third guess ： 3967
   result ： 1A2B
   Fourth input ： 3792
   result ： 4A0B
   Game success ！！！

Source download

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

Topic three Mathematical oral arithmetic competition system

1. The design requirements ：
   The system is applicable to the primary school students' mathematical oral arithmetic competition . There are two types of competition questions ：“ Four simple operations ” and “ Four mixed operations ”, The computer makes random questions , The contestant timed his answer .
   When you are asked to enter each type of competition , The computer prompts , The scores of each person are updated at any time . The menu format is shown in the figure .

2. Basic function
   1） Before the game , You need to enter the name of the competitor . New users can be registered after initial use ： user name , grade , Schools and so on .
   2） After the start of the game , The bottom is divided into 100 branch . There are two types of competition questions ：“ Four simple operations ”（N Problem ） and “ Four mixed operations ”（M Problem ）,N、M You can set it up freely , The computer makes random questions , First out “ Four simple operations ” topic , Every time you go out , Contestants rush to answer , Do the right thing and add 5 branch , Make a mistake and subtract 5 branch . Later “ Four mixed operations ”, Do the right thing and add 10 branch , Make a mistake and subtract 10 branch . When you are asked to enter each type of competition , The computer prompts , The scores of each person are updated at any time .
   3） Finish all the questions , Show total score .
   4） You can view the competition , Including scores , The answers to each question, etc .
   5） View results ： View personal history game results , The highest ;
   6） In a single game , Take the school as a unit , View the school's total score , ranking .
   7） According to the grade of the contestant , Set different difficulty levels , Make a question selectively .

3. Expand functions ：
   1） Set the answer time for each question , Overtime shall be treated as error .
   2） Add timing function , Show the time taken to answer the question , The same score will be ranked according to the shorter time .

Source download

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

Topic four Small commodity management system

1. The design requirements ：
   Store the commodity information in the form of file in the computer , Use the program to find commodities 、 Addition 、 Delete 、 Modification and maintenance work .
   Manage the permissions of different users .

2. Basic function
   1） Before using the system , Log in first .
   Users are divided into 2 class ：a. Administrators （ You can use all permissions , You can create ordinary users , And assign permissions to ordinary users ）.b. Ordinary users （ Before use , The administrator is required to register the user information , And open corresponding permissions ）
   2） User management . Only administrators can use this function . Include ：
   Open a new user , Delete user , User permission Settings .
   User rights include ：a. You can only query 、 Browse product information ; b. You can edit product information （ increase 、 modify 、 Delete ）
   3） Commodity information management . increase 、 modify 、 Delete product information .
   Each product information shall at least include ： Product id 、 name 、 Various price elements （ Purchase price 、 The sale price 、 discount price ）
   4） Commodity information query . According to different keywords , Query and display product information .

3. Expand functions ：
   1） The items are displayed by some sort of keyword
   2） Increase inventory of goods 、 Monthly sales volume and other information for the first half of the year , Value of existing goods 、 Statistical analysis of sales and other information
   3） Other custom extension functions .

Source download

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

Third articles reference

1. Lihongyu et al ,C Programming tutorial （5 edition ）（ Selected textbooks for computer basic education in Colleges and universities ）, tsinghua university press ,2018
2. By Tan Haoqiang ,《C Programming 》（5 edition ）, tsinghua university press ,2019
3. Stephen · Prada ,C Primer Plus The first 6 edition Chinese version , People's post and Telecommunications Press ,2019