这是我的头文件student.h
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
//初始化所有函数
void SystemMenu();//菜单
void KeyRecive();
void InsertNode();// 插入节点
struct Node* CreatNode();
struct Node* CreatNewNode(struct Student data);
void CreatNodeList(struct Node* HeadNode, struct Student data); //创建链表
void deletestudent();//删除信息
void deletenode(struct Node* headnode, char* name);//删除节点
struct Node* SearchNode(struct Node* StudentNode, char* name);//
void PrintNode(struct Node* StudentNode);//打印节点
void PrintList(struct Node* StudentNode);//打印链表
void ReadFromFile(char* filename, struct Node* StudentNode);//从文件中读取数据
void SaveFile1(char* filename, struct Node* StudentNode);
struct Node* StudentNode;
char S1[5] = { 's','.','t','x','t' };//?
struct Student {
char name[20];//名字
int age;//年龄
char tel[20];//电话
char addr[20];//住址
};
struct Node {
struct Student data;
struct Node* Next;
};
这是我的主函数文件 main.c
#include"student.h"
int main(void)
{
StudentNode = CreatNode();
ReadFromFile(S1,StudentNode);
while (1)
{
SystemMenu();
KeyRecive();
system("pause");
system("cls");
}
}
void SystemMenu(){
printf("-----------------------------学生信息管理系统--------------------------------------\n");
printf("\t\t\t0.插入信息\n");
printf("\t\t\t1.浏览信息\n");
printf("\t\t\t2.删除信息\n");
printf("\t\t\t3.修改信息\n");
printf("\t\t\t4.查找信息\n");
printf("\t\t\t5.退出系统\n");
printf("-----------------------------------------------------------------------------------\n");
}
void KeyRecive(){
int x;//我的选择
struct Student s;
scanf("%d", &x);
switch (x)
{
case 0:
InsertNode();//增加学生信息
SaveFile1(S1, StudentNode);
printf("插入操作执行完成！-------------");
break;
case 1:
printf("\t【浏览信息】\n");
PrintNode(StudentNode);//输出所有学生的信息
printf("浏览操作执行完成--------------");
break;
case 2:
printf("\t【删除信息】\n");
deletestudent();
SaveFile1(S1, StudentNode);//删除某个学生的信息
printf("删除操作执行完成---------------");
break;
case 3:
printf("\t【更改信息】\n");
printf("请输入更改的姓名：");
scanf("%s", &s.name);
if (SearchNode(StudentNode, s.name) == NULL) {// ?
printf("未找到相关信息！\n");
}
else
{
struct Node* s1 = SearchNode(StudentNode, s.name);
printf("请输入新的学生信息");
printf("请输入同学姓名，年龄，电话，住址");
scanf("%s%d%s%s", &s1->data.name, &s1->data.age, &s1->data.tel, &s1->data.addr);
printf("修改操作执行完成---------------");
SaveFile1(S1,StudentNode);
}
break;
case 4:
printf("\t【查找信息】\n");
printf("请输入查找的姓名：");
scanf("%s",&s.name);
if (SearchNode(StudentNode, s.name) == NULL) {
printf("未找到相关信息！\n");
}
else
{
PrintList(SearchNode(StudentNode, s.name));
printf("查找操作执行完成---------------");
}
break;
case 5:
printf("\t【退出系统】\n");
exit(0);
break;
default:printf("输入数据有误，重新输入");KeyRecive();
break;
}
}
void InsertNode() {//插入函数
int x,i;
struct Student S;
printf("请输入学生个数");
scanf("%d",&x);
for (i=1;i<=x; i++) {
printf("请输入第%d个同学姓名，年龄，电话，住址",i);
scanf("%s%d%s%s", S.name, &S.age, S.tel, S.addr);
CreatNodeList(StudentNode,S);
}
}
struct Node* CreatNode() //建立头节点
{
struct Node* HeadNode = (struct Node*)malloc(sizeof(struct Node));
HeadNode->Next = NULL;
return HeadNode;
}
struct Node* CreatNewNode(struct Student data) {//建立新结点函数
struct Node* NewNode = (struct Node*)malloc(sizeof(struct Node));
NewNode->data = data;
NewNode->Next = NULL;
return NewNode;
}
void CreatNodeList(struct Node* HeadNode, struct Student data) {//建立新节点并插入数据
struct Node* NewNode = CreatNewNode(data);
NewNode->Next = HeadNode->Next;
HeadNode->Next = NewNode;
}
void deletestudent() {//删除节点
char name[10];
printf("请输入需要删除的学生名字");
scanf("%s",&name);
deletenode(StudentNode,name);
}
void deletenode(struct Node* headnode, char *name) {//删除节点
struct Node* posnode = headnode->Next;
struct Node* posnodefront = headnode;
if (posnode == NULL) {
printf("数据为空，无法删除");
}
else
{
while (strcmp(posnode->data.name,name)) {
posnodefront = posnode;
posnode = posnodefront->Next;
if (posnode == NULL)
{
printf("未找到指定位置，无法删除");
return;
}
}
posnodefront->Next = posnode->Next;
free(posnode);
}
}
struct Node* SearchNode(struct Node* StudentNode, char* name)
{//查找节点
struct Node* pMove = StudentNode->Next;
if (pMove == NULL)
{
printf("未找到该学生");
return(pMove);
}
else
{
while (strcmp(pMove->data.name, name))
{
pMove = pMove->Next;
if (pMove == NULL)break;
}
return pMove;
}
}
void PrintList(struct Node* StudentNode)
{//打印单个节点
printf("姓名\t年龄\t电话\t住址\n");
printf("%s\t%d\t%s\t%s\n",StudentNode->data.name,StudentNode->data.age,StudentNode->data.tel,StudentNode->data.addr);
}
void PrintNode(struct Node* StudentNode)
{//浏览信息
struct Node* pow = StudentNode->Next;
printf("姓名\t年龄\t电话\t住址\n");
while(pow)
{
printf("%s\t%d\t%s\t%s\n",pow->data.name,pow->data.age,pow->data.tel,pow->data.addr);
pow = pow->Next;
}
}
void ReadFromFile(char *filename,struct Node* StudentNode)
{
FILE* fp = fopen(filename, "r");
if (fp == NULL)
{
fp = fopen(filename, "w");
}
struct Student data;
while (fscanf(fp, "%s\t%d\t%s\t%s\n", &data.name, &data.age,&data.tel, &data.addr) != EOF)
{
CreatNodeList(StudentNode, data);
memset(&data, 0, sizeof(data));
}
fclose(fp);
}
void SaveFile1(char* filename, struct Node* StudentNode)
{
FILE* fp = fopen(filename,"w");
struct Node* pow = StudentNode->Next;
while (pow)
{
fprintf(fp,"%s\t%d\t%s\t%s\n", pow->data.name, pow->data.age, pow->data.tel, pow->data.addr);
pow = pow->Next;
}
fclose(fp);
}
当我在devc++的项目里运行时总是出现编译错误，错误如下：
这个该怎么改？
