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源码搜藏网。