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The knowledge points of this article "how to use C language to achieve student performance management system" are not quite understood by most people, so the editor summarizes the following contents, detailed contents, clear steps, and has a certain reference value. I hope you can get something after reading this article, let's take a look at this article "how to use C language to achieve student performance management system" article.

1. Data structure: student information: student number, name, age, gender, 3 course scores

2. Function:

(1) increase student records

(2) Delete student records

(3) find student information (student number, name)

(4) modify student information

(5) sort according to grades, find the average, maximum and minimum.

3. User interface

Main menu

Submenu

4. Generate test data in batches

/ main.c// Student System//// Created by ma c on 15 main.c// Student System//// Created by ma c on 7 shock 22. Universe / Copyright (c) 2015. All rights reserved.// requirements: to prepare a student performance management system. # include#include# include#define N 50struct Student {char name [20]; int sno; int age; char gender; float EnglishScore; float mathScore; float chineseScore } stu [N] = {{"zhao", 10002pr] = {{"qian", 1002pr. 23pr. Pint 95pr. 96pr. 92}, {"hong", 1003pr. 22pr. Pr. 91pr. 93pr. Ninety. Ninety), {"feng", 1005pr. 21pr. 97recorder 91pc90}, {"chen", 1007pr 21pr 94pr 92pr 91}, {"geng", 1008pr 20pr Flemish pr. 90pcm91}, {"tang", 1009pr 24pr mcml9999999}} / / add data void add (struct Student stu [], int pos,int nums); / / Delete data void Delete_name (struct Student * stu,char Name []); / / (by name) void Delete_sno (struct Student * stu,int Sno); / / (by student number) / / modify data void update (struct Student stu [], int Sno,int len); / / query submenu void menu (struct Student stu [], int m); void search (struct Student stu [], int nChar Name []) / query void search2 by name (struct Student stu [], int n Num); / query void sort by student number (struct Student stu [], int n); / / sort void print by total score (struct Student stu [], int n); void My_print_sum (struct Student stu [], int n); void max_min (struct Student stu [], int n) / / main menu void PrintScreen () {printf ("-\ n"); printf ("* * 1. Add student records * *\ n "); printf (" * * 2. Delete student record * *\ n "); printf (" * * 3. Find student record * *\ n "); printf (" * * 4. Modify student record * *\ n "); printf (" * * 0. Exit the management system * *\ n "); printf (" -\ n ");} / delete the submenu void deleteScreen () {printf (" -\ n "); printf (" * * 0. Delete data by name * *\ n "); printf (" * * 1. Delete data by student number * *\ n "); printf (" * * 2. Return to the main menu * *\ n "); printf (" -\ n "); printf (" please select 0-1: ");} / / find submenu void seekScreen () {printf (" -\ n "); printf (" * 1. Find information by name *\ n "); printf (" * 2. Search for information by student number *\ n "); printf (" * 3. Check all student scores *\ n "); printf (" * 4. Ranking of grades (total score) *\ n "); printf (" * 5. Check out the best and worst grades *\ n "); printf (" * 6. Return to the main menu *\ n "); printf (" -\ n "); printf (" please you select 1-6: ");} / / define a global static variable and count the number of people in the current structure array static int count = 10 argv / main function int main (int argc, const char * argv []) {int nums,temp; int snos; char names [20] While (1) {PrintScreen (); printf ("please press enter_key continue!\ n"); getchar (); printf ("please select 0-4:"); char c = getchar (); switch (c) {case'1: printf ("please student'numbers you want to add:"); scanf ("% d", & nums); add (stu,count,nums) / / add data getchar (); break; case '2data: deleteScreen (); scanf ("% d", & temp); switch (temp) {case 0: printf ("please input delete name:") Scanf ("% s", names);; Delete_name (stu,names); / / Delete data (delete by name) break; case 1: printf ("please input delete sno:"); scanf ("% d", & snos) Delete_sno (stu,snos); / / Delete data (delete by student number) break; case 2: break;} getchar (); break; case '3percent: menu (stu,count) / / find data getchar (); break; case '4records: printf ("please input update sno:"); scanf ("% d", & snos); update (stu,snos,count); / / modify data break; case' 0values: exit (0) / / log out of the system default: printf ("data is illeagel!\ n"); getchar (); break; / / enter illegal}} return 0;} / / add data void add (struct Student stu [], int pos,int nums) / / start position, number of people added {for (int iDepositon)

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