本文实例为大家分享了C语言单链表实现学生管理系统的具体代码，供大家参考，具体内容如下
代码：
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#include<stdio.h>#include<stdlib.h>#include <string.h>#include <malloc.h>struct Student{ int num;//学号 char name[20];//名字 char sex[2]; int age; struct Student *next;};void insert(struct Student **head); //插入void print(struct Student *head); //遍历所有链表void dele(struct Student **head); //删除 指定内容void modify(struct Student **head); // 修改内容void find(struct Student *head); //查找学生信息int modify_menu();int main(){ struct Student *head = NULL; int x; do { printf("------------------------------------------\n"); printf(" 学生管理系统 \n"); printf(" \n"); printf(" 1 增加学生 2 删除学生 \n"); printf(" \n"); printf(" 3 修改资料 4 查找学生 \n"); printf(" \n"); printf(" 5 显示所有学生 0 退出系统 \n"); printf(" \n"); printf("------------------------------------------\n"); printf("请输入你需要使用的功能\n"); scanf("%d",&x); switch(x) { case 0 : break; case 1 : insert(&head); break; case 2 : dele(&head); break; case 3 : modify(&head); break; case 4 : find(head); break; case 5 : print(head); break; default : printf ("选择错误！！！\n"); break; } }while(x);}void insert(struct Student **head){ struct Student *p = (struct Student*)malloc(sizeof(struct Student)); struct Student *stu=NULL; printf("num:"); scanf("%d",&(p->num)); printf("name:"); scanf("%s",(p->name)); printf("sex:"); scanf("%s",p->sex); printf("age:"); scanf("%d",&p->age); p->next=NULL; if(*head == NULL) { *head = p; } else { stu = *head; while(stu->next != NULL) { stu = stu->next; } stu->next = p; }}void print(struct Student *head){ printf("学号 名字 性别 年龄 \n"); while(head != NULL) { printf("%5d %10s %s %d\n",head->num,head->name,head->sex,head->age); head=head->next; }}void dele(struct Student **head){ char arr1[20]; struct Student *p1 = NULL;//指向要删除的前一个结点 struct Student *p2 = *head;//指向要删除的结点 printf("请输入要删除的学生\n"); scanf("%s",arr1); while(p2 != NULL) { if(p1==NULL&&strcmp(arr1,p2->name)==0) { *head = p2->next; free(p2); break ; } else if(strcmp(arr1,p2->name)==0) { p1->next = p2->next; free(p2); break ; } p1=p2; p2=p2->next; } print(*head); }void modify(struct Student **head) //修改 { char arr[20]; int x = 0; struct Student *p = *head; printf("请输入需要修改资料的名字\n"); scanf("%s",arr); while(p!=NULL) { if(strcmp(arr,p->name) ==0) { printf("请选择修改的内容\n"); x = modify_menu(); printf("请输入新的内容\n"); switch(x) { case 1 : scanf("%d",&p->num); break; case 2 : scanf("%s",p->name); break; case 3 : scanf("%s",p->sex); break; case 4: scanf("%d",&p->age); break; default : printf ("选择错误！！！\n"); break; } print(*head); break ; } p=p->next; }}int modify_menu() //修改的菜单 { int choose = 0; printf ("-----------------------------------\n"); printf ("* 1 学号 2 姓名 *\n"); printf ("* 3 性别 4 年龄 *\n"); printf ("* 0 取消修改 *\n"); printf ("-----------------------------------\n"); scanf ("%d", &choose); return choose;}void find(struct Student *head){ char arr[20]; printf("请输入学生姓名\n"); scanf("%s",arr); while(head!=NULL) { if(strcmp(arr,head->name)==0) { printf("学号 名字 性别 年龄 \n"); printf("%5d %10s %s %d\n",head->num,head->name,head->sex,head->age); } head=head->next; }} |
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服务器之家。
原文链接：https://blog.csdn.net/weixin_44859250/article/details/88983180
