鏈式結構設計
項目模塊設計
singleList.h
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
//用戶的信息
struct userInfo{
char name[20];
char password[7];
int pession;//權限
};
typedef struct Node
{
struct userInfo data;
struct Node* next;
}LIST,*LPLIST;
/*
LIST :struct Node;
LPLIST: struct Node*
*/
//<1>.創建鏈表
LPLIST createList()
{
//1.指針初始化：分配堆內存初始化
LPLIST headNode = (LPLIST)malloc(sizeof(LIST));
//2.為指針表達式結構體變量初始化
headNode->next = NULL;
return headNode;
}
LPLIST createNode(struct userInfo data)
{
LPLIST newNode = (LPLIST)malloc(sizeof(LIST));
newNode->data = data;
newNode->next = NULL;
return newNode;
}
//<2>.插入數據功能
void insertNodeByHead(LPLIST list, struct userInfo data)
{
//頭插法
LPLIST newNode = createNode(data);
newNode->next = list->next;
list->next = newNode;
}
//<3>.指定位置刪除數據
void deleteNodeByAppoin(LPLIST list,char *name)
{
LPLIST frontPosNode = list;
LPLIST posNode = list->next;
if (posNode == NULL)
{
printf("無相關信息，無法刪除\n");
system("pause");
return;
}
else
{
while (strcmp(posNode->data.name,name))
{
frontPosNode = posNode;
posNode = frontPosNode->next;
if (posNode == NULL)
{
printf("無相關信息，無法刪除\n");
system("pause");
return;
}
}
frontPosNode->next = posNode->next;
free(posNode);
}
}
//<5>.查找
LPLIST searchNodeByAppoin(LPLIST list, char *name)
{
LPLIST posNode = list->next;
if (posNode == NULL)
{
printf("無相關信息，無法刪除\n");
}
else
{
while (strcmp(posNode->data.name, name))
{
posNode = posNode->next;
if (posNode == NULL)
{
break;
}
}
}
return posNode;
}
LPLIST ModifyByAppoin(LPLIST list, char *name,char *password)
{
LPLIST posNode = list->next;
if (posNode == NULL)
{
printf("無相關信息，無法刪除\n");
}
else
{
while (strcmp(posNode->data.name, name))
{
posNode = posNode->next;
if (posNode == NULL)
{
break;
}
}
strcpy(posNode->data.password, password);
}
return posNode;
}
//<4>.打印數據
void printList(LPLIST list)
{
LPLIST pMove = list->next;
printf("name\t\tpassword\tpession\n");
while (pMove)
{
printf("%s\t\t%s\t\t%d\n", pMove->data.name, pMove->data.password, pMove->data.pession);
pMove = pMove->next;
}
printf("\n");
}
//把鏈表信息存儲到文件
void saveInfoToFile(LPLIST list, char * fileName, char *mode)
{
FILE *fp = fopen(fileName, mode);
LPLIST pMove = list->next;
while (pMove)
{
fprintf(fp, "%s\t\t%s\t\t%d\n", pMove->data.name, pMove->data.password, pMove->data.pession);
pMove = pMove->next;
}
fclose(fp);
}
system.cpp
#define _CRT_SECURE_NO_WARNINGS
#include "singleList.h"
//<1>.界面
void menu()
{
printf("--------------------------------\n");
printf("\t\t0.退出\n");
printf("\t\t1.用戶登陸\n");
printf("--------------------------------\n");
}
void systemMenu()
{
printf("----------【管理員操作界面】-------\n");
printf("\t\t0.退出\n");
printf("\t\t1.修改用戶密碼\n");
printf("\t\t2.刪除用戶\n");
printf("\t\t3.添加用戶\n");
printf("\t\t4.瀏覽用戶\n");
printf("--------------------------------\n");
}
void systemKeyDown()
{
int choice = 0;
scanf("%d", &choice);
//-----------------------------------------------------------------
LPLIST list = createList();
struct userInfo userTemp;
FILE *fp = fopen("userData.txt", "r");
while (fscanf(fp, "%s\t%s\t%d\n", userTemp.name, userTemp.password, &userTemp.pession) != EOF)
{
insertNodeByHead(list, userTemp);
}
fclose(fp);
//-----------------------------------------------------------------
system("cls");
switch (choice)
{
case 0:
printf("正常退出\n");
system("pause");
exit(0);
break;
case 1:
//修改用戶密碼
printf("----------【修改】----------\n");
printf("用戶名:");
setbuf(stdin, NULL);
gets(userTemp.name);
if (searchNodeByAppoin(list, userTemp.name) == NULL)
{
printf("未找到相關信息!\n");
system("pause");
return;
}
else
{
printf("請輸入新密碼：");
setbuf(stdin, NULL);
gets(userTemp.password);
ModifyByAppoin(list, userTemp.name,userTemp.password);
}
break;
case 2:
//刪除用戶
printf("----------【添加用戶】----------\n");
printf("輸入要刪除的用戶名:");
setbuf(stdin, NULL);
gets(userTemp.name);
deleteNodeByAppoin(list, userTemp.name);
break;
case 3:
//添加用戶
printf("----------【添加用戶】----------\n");
printf("用戶名:");
setbuf(stdin,NULL);
gets(userTemp.name);
printf("密碼：");
setbuf(stdin, NULL);
gets(userTemp.password);
userTemp.pession = 2;
insertNodeByHead(list, userTemp);
break;
case 4:
printf("----------【瀏覽賬戶信息】----------\n");
printList(list);
break;
default:
printf("輸入錯誤!");
break;
}
saveInfoToFile(list, "userData.txt", "w");
}
//輸入賬戶信息
void inputUserInfo()
{
char username[20];
char password[7];
system("cls");
printf("----------【用戶登陸模塊】----------\n");
printf("\t\t用戶名:");
setbuf(stdin, NULL);
gets(username);
int ch = 0;
int iCount = 0;
printf("\t\t密 碼:");
setbuf(stdin, NULL);
while ((ch = _getch()) != '\r')
{
password[iCount++] = ch;
putchar('*');
if (iCount == 7)
{
printf("密碼過長！");
return;
}
}
password[iCount] = '\0';
printf("\n");
struct userInfo userTemp;
LPLIST list = createList();
FILE *fp = fopen("userData.txt", "r");
while (fscanf(fp, "%s\t%s\t%d\n", userTemp.name, userTemp.password, &userTemp.pession) != EOF)
{
insertNodeByHead(list, userTemp);
}
fclose(fp);
LPLIST searchResult = searchNodeByAppoin(list, username);
if (searchResult == NULL)
{
printf("用戶名不存在!");
return;
}
else if (!strcmp(password, searchResult->data.password) && searchResult->data.pession == 1)
{
while (1)
{
system("cls");
systemMenu();
systemKeyDown();
system("pause");
}
}
else
{
printf("密碼錯誤，無法登陸\n");
return;
}
}
//<2>.按鍵處理
void keyDown()
{
//可視化：鼠標處理
int choice=0;
scanf("%d", &choice);
switch (choice)
{
case 0:
printf("正常退出\n");
system("pause");
exit(0);
break;
case 1:
inputUserInfo();
break;
default:
printf("輸入錯誤，請重新輸入\n");
break;
}
}
int main()
{
//測試鏈表是否成功
//LPLIST list = createList();
//insertNodeByHead(list, 1);
//insertNodeByHead(list, 2);
//insertNodeByHead(list, 3);
//printList(list);
//deleteNodeByAppoin(list, 2);
//printList(list);
while (1)
{
menu();
keyDown();
system("pause");
system("cls");
}
system("pause");
return 0;
}
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