最近很多小伙伴私信喊我，有没有【学生成绩管理系统】的源码呀？
of course！作为编程百宝箱，区区源码只是我的冰山一角~
直接呈上代码：
#define _CRT_SECURE_NO_DEPRECATE
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
#include<windows.h>
struct stu{
int id[10]; //学号
char name[20]; //姓名
int score; //分数
};
struct STU
{
//int data;
struct stu data;
struct STU* next;
};
//创建结构体表头
struct STU* creatlist()//创建链表
{
struct STU* head = (struct STU*)malloc(sizeof(struct STU));
head->next = NULL;
return head;
}
//创建结点
struct STU* createNode(struct stu data)
{
struct STU* newNode = (struct STU*)malloc(sizeof(struct STU));
newNode->data = data;
newNode->next = NULL;
return newNode;
}
//插入结点
void insertNodeByhead(struct STU* head, struct stu data)
{
struct STU* newNode = createNode(data);
newNode->data = data;
head->next = newNode;
}
//指定位置删除
void deleteNode(struct STU* head, char* name)
{
struct STU* posNode = head->next;
struct STU* posFrontNode = head;
if (posNode == NULL)
{
printf("数据为空，无法删除！\n");
return;
}
while (strcmp(posNode->data.name, name))
{
posFrontNode = posNode;
posNode = posFrontNode->next;
if (posNode == NULL)
{
printf("未找到指定位置，无法删除！\n");
return;
}
}
posFrontNode->next = posNode->next;
free(posNode);
}
//查找
struct STU* searchData(struct STU* head, char *name)
{
struct STU* p = head->next;
if (p == NULL)
return NULL;
while (strcmp(p->data.name, name))
{
p = p->next;
}
return p;
}
//文件读操作
void readFile(struct STU* head, char *fileName)
{
FILE *fp;
struct stu data;
fp = fopen(fileName, "r");
if (fp == NULL)
{
fp = fopen(fileName, "w+");
}
while (fscanf(fp, "%d\t%s\t%d\n", &data.id, data.name, &data.score) != EOF)
{
insertNodeByhead(head, data);
}
fclose(fp);
}
//文件写操作
void writeFile(struct STU* head, char *FileName)
{
FILE *fp;
fp = fopen(FileName, "w");
struct STU* p = head->next;
while (p)
{
fprintf(fp, "%d\t%s\t%d\n", p->data.id, p->data.name, p->data.score);
p = p->next;
}
fclose(fp);
}
//打印链表
void printlist(struct STU* head)
{
struct STU* p = head->next;
printf("学号\t姓名\t分数\n");
while (p)
{
printf("%d\t%s\t%d\n", p->data.id, p->data.name, p->data.score);
p = p->next;
}
printf("\n");
}
void menu()
{
system("cls");//清屏
system("color b");//修改字体颜色
printf("\n\n\n\n");
printf("\t************************************\n");
printf("\t| 欢迎来到学生信息管理系统 |\n");
printf("\t|**********************************|\n");
printf("\t|** 1:录入学生信息 **|\n");
printf("\t|** 2:显示学生信息 **|\n");
printf("\t|** 3:增加学生信息 **|\n");
printf("\t|** 4:删除学生信息 **|\n");
printf("\t|** 5:查询学生信息 **|\n");
printf("\t|** 6:修改学生信息 **|\n");
printf("\t|** 7:退出学生系统 **|\n");
printf("\t************************************\n");
printf("\n \t请输入您要进行的操作（1~~7）：");
}
struct STU* List = creatlist();
void keydown()
{
int n = 0;
struct stu data;
struct STU*p = NULL;
scanf("%d", &n);
switch (n)
{
//增加一个学生信息
case 1:
printf("******录入学生信息******\n");
printf("请输入你要添加的学生学号,姓名，分数：");
fflush(stdin);//清空缓冲区
scanf("%d\t%s\t%d\n", &data.id, data.name, &data.score);
insertNodeByhead(List, data);
break;
case 2:
printf("******显示学生信息******\n");
printlist(List);
break;
case 3:
printf("******增加学生信息******\n");
printf("请输入你要添加的学生学号,姓名，分数：");
fflush(stdin);//清空缓冲区
scanf("%d\t%s\t%d\n", &data.id, data.name, &data.score);
insertNodeByhead(List, data);
break;
case 4:
printf("******删除学生信息******\n");
printf("请输删除的学生姓名:");
scanf("%s", data.name);
deleteNode(List, data.name);
break;
case 5:
printf("******查询学生信息******\n");
printf("请输入要查找的学生姓名：");
scanf("%s", data.name);
p = searchData(List, data.name);
if (p == NULL)
{
printf("未找到相关信息，无法删除！\n");
system("pause");
}
else
{
printf("学号\t姓名\t分数\n");
printf("%d\t%s\t%d\n", p->data.id, p->data.name, p->data.score);
}
break;
case 6:
printf("******修改学生信息******\n");
printf("请输入要修改的学生姓名：");
scanf("%s", data.name);
break;
case 7:
printf("已经安安全退出！");
system("pause");//防止闪屏
exit(7);
break;
default:
printf("输入有误,请重新入！");
system("pause");//防止闪屏
break;
}
writeFile(List, "1.txt");
}
int main()
{
readFile(List, "1.txt");
while (1)
{
menu();
keydown();
}
return 0;
}
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