题目要求：

用户表：用户姓名、登录密码。
日程表：日程编号、日程内容、创建日期、开始时间、结束时间、所属用户。
功能要求：
1.用户进入系统之前有、登录和注册的功能。注册时、应判断是否用户名重复
2.用户使用这个系统成功登录的时候，列出一个菜单、菜单里面包含所有的选择
3.用户具有：新建日程、查看当前未过时日程、和历史日程、删除日程
4.用户只能操作所属自己的日程
5.要求将数据保存在数据文件中。每一类信息存放在一个文件中，在程序中以链表的形式来存储和处理数据。

代码：

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include <conio.h>
#include <time.h>

typedef struct User
{
    char Name[20];
    char Pass[7];
}User;

typedef struct Date
{
    int Year;
    int Month;
    int Day;
}Date;

typedef struct Data
{
    int No;
    int Count;
    char Name[20];
    Date Time;
    char Info[401];
    struct Data *Next;
}Data;


int Enroll();
Data *Creat();
void Clock();
int See();
int Add();
void Browse(Data *Head, int count);
int Delete();
void Menu();
int Login();
int Mode(int slec, char Name[]);

int main()
{
    FILE *fp;
    int slec;
    int Run=1;
   
    char New[20]="Admin",Key[20]="admin";
   
    if (fopen("Users.list","rb") == NULL)
    {
        printf("初始化...");
        fp=fopen("Users.list","wb");
        
        printf("内置账户：%s，长度：%d",New,strlen(New));
        fwrite(New,20,1,fp);
        printf("初始密码：%s，长度：%d",Key,strlen(Key));
        fwrite(Key,20,1,fp);
        
        fclose(fp);
        printf("完成！\n");
    }
   
    while (Run)
    {
        printf("====================欢迎使用日程管理系统！======================\n");
        printf("                    请选择 1.注册 2.登录   ");
        scanf("%d",&slec);
        
        if (slec==1)        Run=Enroll();
        else if (slec==2)    Run=Login();
        else printf("该功能尚未开发。\n");
    }
    return 0;
}

int Enroll()
{   
    FILE *fp;
    char Name[20],New[20],Key[20];
   
    getchar();
    fp=fopen("Users.list","rb+");
    if (fp == NULL)    {printf("文件打开失败！\n");    return 1;}
   
    printf("请输入要新建的用户名（至多19个字符）：");
    fgets(New,20,stdin);
    New[strlen(New)-1]='\0';
   
    while(1)
    {
        if(fread(Name,20,1,fp) != 1)    break;
        if (strcmp(New, Name) == 0)
        {
            printf("用户名已存在！请重新创建...\n");
            fclose(fp);
            return 1;
        }
        fread(Key,7,1,fp);
    }
    printf("请输入密码：（至多19个字符）");
    fgets(Key,20,stdin);
    Key[strlen(Key)-1]='\0';
   
    fwrite(New,20,1,fp);
    fwrite(Key,20,1,fp);
    printf("创建完成，请重新登录！\n");
    fclose(fp);
   
    return 1;
}

void Clock()
{
    time_t t;
    struct tm *tp;
   
    t=time(NULL);
    tp=localtime(&t);
    printf("当前本机时间为     ");
    printf("%d:%d:%d\n ",tp->tm_hour,tp->tm_min,tp->tm_sec);
    printf("%d年%d月%d日 ",tp->tm_year+1900,tp->tm_mon+1,tp->tm_mday);
    printf("今天是本周第%d天，今年的第%d天\n ",tp->tm_wday,tp->tm_yday);
}

Data *Creat(Data *Last)
{
    Data *New=NULL;
   
    New=(Data*)malloc(sizeof(Data));
    if (New == NULL)
    {
        printf("内存分配失败！\n");
        return NULL;
    }
    Last=New;
   
    Clock();
   
    printf("请输入日程时间（格式：年.月.日）");
    scanf("%d.%d.%d",&New->Time.Year,&New->Time.Month,&New->Time.Day);
    getchar();
   
    printf("请输入日程内容：(至多400字符)\n          ");
    fgets(New->Info,400,stdin);
    New->Info[400]='\0';
   
    New->Next=NULL;
   
    return New;
}

int Add(char Name[20])
{
    FILE *fp;
    Data New;
   
    fp=fopen("Users.list","rb+");
    if (fp == NULL)    {printf("文件打开失败！\n");    return 1;}

    Clock();   
    printf("请输入日程时间（格式：年.月.日）");
    scanf("%d.%d.%d",&New.Time.Year,&New.Time.Month,&New.Time.Day);
    getchar();
   
    printf("请输入日程内容：(至多400字符)\n  ");
    fgets(New.Info,400,stdin);
    New.Info[400]='\0';
   
    fwrite(&New.Time.Year,sizeof(int),1,fp);
    fwrite(&New.Time.Month,sizeof(int),1,fp);
    fwrite(&New.Time.Day,sizeof(int),1,fp);
    fwrite(New.Info,401,1,fp);

    return 1;
}

int Mode(int slec, char Name[20])
{
    FILE *fp;
    Data *New=NULL,*Temp=NULL,*Head=NULL;
    int count=0;
   
    fp=fopen(Name,"rb+");
    if (fp == NULL)    {printf("文件打开失败！\n");    return 1;}
   
    while(1)
    {
        
        New=(Data*)malloc(sizeof(Data));
        if (New == NULL)
        {
            printf("内存分配失败！\n");
            return 1;
        }
        if (Head == NULL)    {Head=New;Temp=New;}                       printf("ready!\n");

        if(fread(&New->Time.Year,sizeof(int),1,fp) != 1)    break;       printf("start!\n");
        fread(&New->Time.Month,sizeof(int),1,fp);
        fread(&New->Time.Day,sizeof(int),1,fp);
        fread(New->Info,401,1,fp);    New->Next=NULL;
        New->Count=(++count);                                             printf("over!\n");

        printf("序号%d 日期%d.%d.%d",&Head->Count,
            &New->Time.Year,&New->Time.Month,&New->Time.Day);
        puts(New->Info);
        
   
        Temp=New;
    }

    if (slec==3)    Browse(Head,count);
    fclose(fp);
    return 1;
}

void Menu(char Name[20])
{
    int Run=1;
    char slec;
    FILE *fp;
   
    printf("===========================登录成功=============================\n");
    if (fopen(Name,"rb") == NULL)
    {
        printf("您是新用户，来创建您的第一个日程！\n");
        fp=fopen(Name,"wb");
        fclose(fp);
        Run=Add(Name);
    }
   
    while (Run)
    {
        printf("================================================================\n",Name);
        printf("已登录为%s\n",Name);
        printf("================================================================\n",Name);
        printf("                         1.新建日程\n");
        printf("                         2.查看当前日程\n");
        printf("                         3.浏览所有日程\n");
        printf("                         4.删除日程\n");
        printf("                         5.退出登录\n");
        printf("                         请选择相应序号： ");
        
        scanf("%d",&slec);
        
        if  (slec==1) Add(Name);
        else if (slec>=2 && slec<=4)    Run=Mode(slec,Name);
        else if (slec==5)    break;
        else printf("该功能尚未开发。\n");
    }
}

int Login()
{
    FILE *fp;
    int Run=0;
    char Name[20],Pass[20],New[20],Key[20];
   
    getchar();
    fp=fopen("Users.list","rb+");
    if (fp == NULL)    {printf("文件打开失败！\n");    return 1;}
   
    printf("请输入用户名：");
    gets(New);
   
    while(1)
    {
        if(fread(Name,20,1,fp) != 1)    break;
        fread(Pass,20,1,fp);
        if (strcmp(New, Name) == 0)        {Run=1;break;}
    }
    fclose(fp);
   
    if (Run == 1)
    {
        printf("请输入密码：");
        gets(Key);
        if (strcmp(Key,Pass) != 0)
            printf("密码错误！\n");
        else
        {
            Menu(Name);
            printf("已退出登录！three\n");
        }
    }
    else
        printf("用户不存在！\n");

    return 1;
}

void Browse(Data *Head, int count)
{
    printf("以下为您的所有日程，共%d条：\n",&count);
    while(count--)
    {
        printf("序号%d 日期%d.%d.%d",&Head->Count,
            &Head->Time.Year,&Head->Time.Month,&Head->Time.Day);
        puts(Head->Info);
        Head=Head->Next;
    }
}

在浏览和查看日程那里出了问题，删除日程还没写

作业贴

启动9点倒计时

弄个菜单瞧瞧

5楼的代码：

#include <cstdio>
#include <cstdlib>
#include "MyConsole.h"
#include "StatusBar.h"
#include "PopMenu.h"

int main(void)
{
    MyConsole::Init(160, 50);
    MyConsole::SetTitle(L"MyConsole 測試程序");
    MyConsole::Clear(MyConsole::CombineAttribute(MyConsole::WHITE, MyConsole::BLUE));

    //StatusBar statusBar(MyConsole::GetRows() - 2, MyConsole::WHITE | MyConsole::INTENSITY, MyConsole::GREEN);
    StatusBar statusBar;
    statusBar.Say("Esc: 結束程序");

    const wchar_t* menu[] = {
        L"1.新建日程",
        L"2.查看當前日程",
        L"3.瀏覽所有日程",
        L"4.刪除日程",
        L"5.退出登錄"
    };
    PopMenu popMenu(menu, _countof(menu), 5, 5);
    popMenu.SetNormalAttribute(MyConsole::WHITE | MyConsole::INTENSITY, MyConsole::GREEN);
    popMenu.SetHighlightAttribute(MyConsole::YELLOW | MyConsole::INTENSITY, MyConsole::MAGENTA);
    popMenu.Show();
    int choice;
    do
    {
        choice = popMenu.Choice();
    } while ((choice != _countof(menu) - 1) && (choice != -1));
    popMenu.Hide();

    while (MyConsole::ReadKeypress() != MyConsole::K_ESC)
    {
        ;
    }

    return EXIT_SUCCESS;
}

[ 本帖最后由 TonyDeng 于 2014-7-7 10:50 编辑 ]