本文实例为大家分享了C语言实现学生管理系统的具体代码，供大家参考，具体内容如下
1.目标要求：
1.学生成绩管理系统
2.可增、删、改、查、浏览
3.数据保存在文件中
2.C语言代码：
文件1：源文件
#include"mylist.h"
//菜单设计
void menu(){
//所有文件都同步到文件
printf("-------------【学生管理信息】-------------------\n");
printf("\t\t0.退出系统\n");
printf("\t\t1.录入信息\n");
printf("\t\t2.浏览信息\n");
printf("\t\t3.修改信息\n");
printf("\t\t4.删除信息\n");
printf("\t\t5.查找信息\n");
printf("------------------------------------------------\n");
}
struct Node* list;
//用户的交互
//根据所选的菜单项，作相应的事情
void keyDown(){
int choice = 0;
struct student data;
struct Node* pMove = NULL;
scanf("%d",&choice);
switch(choice){
case 0:
printf("正常退出！\n");
system("pause");
exit(0);
break;
case 1:
printf("-------------录入信息-------------------\n");
//插入链表
fflush(stdin); //清空缓冲区！！！！！！！！！
printf("请输入学生的\n姓名、年龄、性别、电话：\n");
scanf("%s%d%s%s",data.name,&data.age,data.sex,data.tel);
insertNodeByHead(list,data);
break;
case 2:
printf("-------------浏览信息-------------------\n");
printList(list); //打印链表
break;
case 3:
printf("-------------修改信息-------------------\n");
printf("请输入要修改信息的学生姓名：");
scanf("%s",data.name);
reviseInfoByData(list,data.name);
break;
case 4:
printf("-------------删除信息-------------------\n");
printf("请输入删除学生的姓名：");
scanf("%s",data.name);
deleteNode(list,data.name);
break;
case 5:
printf("-------------查找信息-------------------\n");
printf("请输入要查找学生的姓名：");
scanf("%s",data.name);
if( pMove = searchInfoByData(list,data.name)){
printf("姓名\t年龄\t性别\t电话\n");
printf("%s\t%d\t%s\t%s\n",pMove->data.name,pMove->data.age,pMove->data.sex,pMove->data.tel);
}
break;
default:
printf("选择错误，重新输入\n");
system("pause");
break;
}
writeInfoToFile(list,"1.txt");
}
int main(){
list = createList();
readInfoFromFile(list,"1.txt");
while(1){
menu();
keyDown();
system("pause");
system("cls");
}
system("pause");
return 0;
}文件2：mylist.h
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
//数据的设计-----》学生信息抽象出
struct student{
char name[20];
int age;
char sex[5];
char tel[20];
// int math;
// int english;
};//结构
//测试的结构
struct Node{
struct student data;
struct Node* next;
};
//创建表头
struct Node* createList(){
struct Node* headNode = (struct Node*)malloc(sizeof(struct Node));
headNode->next = NULL;
return headNode;
}
//创建节点
struct Node* createNode(struct student data){
struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
newNode->data = data;
newNode->next = NULL;
return newNode;
}
//插入结点(表头法)
void insertNodeByHead(struct Node* headNode, struct student data){
struct Node* newNode = createNode(data);
newNode->next = headNode->next;
headNode->next = newNode;
}
//指定位置删除
void deleteNode(struct Node* headNode,char* name){
struct Node* posFrontNode;
struct Node* posNode;
if(headNode->next == NULL){
printf("链表为空！\n");
return;
}
posFrontNode = headNode;
posNode = headNode->next;
while(posNode && strcmp(posNode->data.name,name)){
posFrontNode = posNode;
posNode = posFrontNode->next;
}
if(!posNode){
printf("您要删除的数据不存在！\n");
return;
}
if(!strcmp(posNode->data.name,name)){
posFrontNode->next = posNode->next;
free(posNode);
}
}
//查找功能
struct Node* searchInfoByData(struct Node* headNode,char* name) {
struct Node* posNode;
if(headNode->next == NULL){
printf("链表为空！\n");
return NULL;
}
posNode = headNode->next;
while(posNode && strcmp(posNode->data.name,name)){;
posNode = posNode->next;
}
if(!posNode){
printf("您要查找的数据不存在！\n");
return NULL;
}
return posNode;
}
//修改功能
void reviseInfoByData(struct Node* headNode,char* name) {
struct Node* posNode;
if(headNode->next == NULL){
printf("链表为空！\n");
return;
}
posNode = headNode->next;
while(posNode && strcmp(posNode->data.name,name)){;
posNode = posNode->next;
}
if(!posNode){
printf("您要修改的数据不存在！\n");
return;
}
printf("请输入学生[%s]的年龄、性别、电话：\n",posNode->data.name);
scanf("%d%s%s",&posNode->data.age,posNode->data.sex,posNode->data.tel);
}
//文件读操作
void readInfoFromFile(struct Node* headNode,char* fileName){
//1.打开文件
FILE *fp;
struct student data;
fp = fopen(fileName,"r");
if(fp == NULL){
fopen(fileName,"w+");//打开文件具有创建功能
}
//2.读文件
while(fscanf(fp,"%s\t%d\t%s\t%s\n",data.name,&data.age,data.sex,data.tel)!=EOF){
insertNodeByHead(headNode,data);
}
//3.关闭文件
fclose(fp);
}
//文件写操作
void writeInfoToFile(struct Node* headNode,char* fileName){
//1.打开文件
FILE *fp;
fp = fopen(fileName,"w");
struct Node* pMove = headNode->next;
//2.写文件
while(pMove){
fprintf(fp,"%s\t%d\t%s\t%s\n",pMove->data.name,pMove->data.age,pMove->data.sex,pMove->data.tel);
pMove = pMove->next;
}
//3.关闭文件
fclose(fp);
}
//打印链表
void printList(struct Node* headNode){
struct Node* pMove = headNode->next;
//设计列数据的处理
printf("姓名\t年龄\t性别\t电话\n");
while(pMove){
printf("%s\t%d\t%s\t%s\n",pMove->data.name,pMove->data.age,pMove->data.sex,pMove->data.tel);
pMove = pMove->next;
}
printf("\n");
}3.运行结果：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
