Welcome.C 来自于Gitee

#include<stdio.h>
#include<string.h>
#include<time.h>     //系统时间
#include<unistd.h>   //linux_time函数
typedef struct user{                //结构体
        char name[20]; 
        int age;   
        char state[30];   
        int study_time;   
        int play_time;  
}user;

user a[200];
int n = 0;
int i = 0;
int j;

void Welcome()                    //用户界面
{
        printf("===================GEC record=======================\n");
        printf("                   1. 注册用户                      \n");
        printf("                   2. 记录时长                      \n");
        printf("                   3. 打印信息                      \n");
        printf("                   4. 退出系统                      \n");
        printf("====================================================\n");
        printf("请输入您的选项1-4：");
}


void Scanfinfo()                  //注册用户
{       
        char sign='y';
        int z;
        //user p[200];
        while(sign!='n'&&sign!='N')
        {
            printf("\n\n");
            printf("姓名：");
            scanf("%s",a[i].name);
            if(i != 0)
            {
              for(z = 0;z<n;z++)
              {
                 while(strcmp(a[z].name,a[i].name) == 0)
                 {                                               
                    printf("系统中该名字已存在，请重新输入:"); 
                    getchar();
                    scanf("%s",a[i].name);    
                 }
                 break;
              }
            }
            printf("年龄：");
            scanf(" %d",&a[i].age);    
            while(((int)a[i].age != a[i].age) || a[i].age <=0 )
            {                                               
                 printf("输入的不是正整数，请重新输入:"); 
                 getchar();
                 scanf(" %d",&a[i].age);    
            }
            printf("情感状态:");
            scanf("%s",a[i].state);
            a[i].study_time = 0;
            a[i].play_time = 0;
            printf("\n");
            printf("%s的信息录入成功\t",a[i].name);
            printf("\n\n");
            i++;
            n = i;
            
            while(1)
            {
                printf("是否继续注册用户Y/N:"); 
                scanf("\t%c",&sign);
                if(sign!='n'&&sign!='N'&&sign!='y'&&sign!='Y')
                {
                    printf("选择错误\n\n");  
                    continue;
                }
                else
                {
                    break;
                }
            }
            
        }            
}


void Showinfo()                  //打印信息
{
        int i=0;
        for(i;i<n;i++)
        {    
           printf("\n\n");
           printf("姓名：%s\n",a[i].name);
           printf("年龄：%d\n",a[i].age);
           printf("情感状态：%s\n",a[i].state);
           printf("学习时间：%d秒\n",a[i].study_time);
           printf("玩乐时间：%d秒\n",a[i].play_time);
           printf("\n\n");
        }
}

void Seachinfo()              //查找用户信息信息
{       
        char nstr[20];
        int signal = 0;
         while(1)
         {    
          printf("请输入您的姓名：");
          scanf("%s",nstr);
          for(j=0;j<n;j++)
          {
            if( strcmp(a[j].name,nstr) == 0 ) //字符串比较  匹配返回0 
            {
              printf("找到姓名\n");
              signal = 1;
              break;
            }
          }
          if(signal == 0)
          {
              printf("没有该用户\n");
              continue;
          }
          else
          {      
            break; 
          }
         }          
}
void Modifyinfo()             //修改信息菜单
{
        printf("\n\n"); 
        printf("当前操作用户：%s",a[j].name);
        printf("\n");
        printf("1.修改情感状态\n");
        printf("2.记录学习时间\n");
        printf("3.记录玩乐时间\n");
        printf("4.返回首页\n");
        printf("请输入您的选项1-4:");
}
void Modifystate()            //修改情感状态
{ 
        char cstr[30];
        printf("\n");
        printf("请输入新的情感状态：");
        scanf("%s",cstr);
        stpcpy(a[j].state,cstr);
        printf("%s的情感状态修改成功\n",a[j].name);
}

void Studytimeinfo()         //记录学习时间
{
        printf("\n");
        printf("开始学习\n");
        
        char e = '0';
        time_t start_study_time,end_study_time;
        start_study_time = time(NULL);
        printf("计时中。。。\n");
        while(1)
        {
            printf("如果结束学习，请输入1：");
            scanf(" %c",&e);
            if(e == '1')
            {
              printf("结束学习\n");
              end_study_time = time(NULL);
              a[j].study_time = end_study_time-start_study_time;
              printf("\n");
              printf("学习时间：%d秒\n",a[j].study_time);
              break;
            }
            else
            {
                printf("输入错误\n\n");
                continue;
            }
        }
        
}

void Playtimeinfo()           //记录玩乐时间
{

        printf("\n");
        printf("开始玩乐\n");
    
        char f = '0';
        time_t start_play_time,end_play_time;
        start_play_time = time(NULL);
        printf("计时中。。。\n");
        while(1)
        {
          printf("如果结束玩乐，请输入1：");
          scanf(" %c",&f);
          if(f == '1')
          {
            printf("结束玩乐\n");
            end_play_time = time(NULL);
            a[j].play_time = end_play_time-start_play_time;
            printf("\n\n");
            printf("玩乐时间：%d秒\n",a[j].play_time);
            break;
          }
          else
          {
              printf("输入错误\n\n");
              continue;
          }
        }        
}



int main()
{
    int ret;
    
    
    char passwd[10] = "123456";
    
    char str[10] = {0};

    int b = 0;
    int g = 3;

    while(1)
    {    
         printf("请输入密码:");//输入密码
        scanf("%s",str);
        g--;
        ret = strcmp(passwd,str);
        if(ret == 0)
        {
          while(1){
            Welcome();//菜单界面
            char n;
            getchar();
            scanf(" %c",&n);
            switch(n)
            {
                case '1': Scanfinfo();//注册用户
                          break;

                case '2':if(i == 0)
                        {
                            printf("没有注册用户,请先注册\n");
                            continue;
                        }
                          Seachinfo();//查找用户信息
                        while(1)
                        {
                            Modifyinfo();
                            char c;
                            getchar();
                            scanf("%c",&c);
                        
                            switch(c)
                            {
                               case '1':                    
                                      Modifystate();//修改情感状态
                                      continue;
                        
                               case '2':
                                      Studytimeinfo();//记录学习时间
                                      continue;
                        
                               case '3':
                                      Playtimeinfo();//记录玩乐时间
                                      continue;
                              
                               case '4':     
                                      printf("\n"); //返回首页
                                      break;
                              
                               default: 
                                      printf("选择错误!\n");//选择错误
                                      printf("\n\n");
                                      continue;          
                            }
                            break;
                       } 
                       break;   
                    
                case '3': 
                        if(i == 0)
                        {
                            printf("没有注册用户,请先注册\n");
                            continue;
                        }
                         printf("用户信息如下：\n");
                         Showinfo();//打印信息
                         break;
         
                case '4': 
                          printf("\n\n");//退出系统
                          printf("see u next time!\n");
                          return 0;     
                         
                default:
                            printf("wrong!!!!!!!!!!!!!!!!!!!!!!!");
                         printf("选择错误!\n");//选择错误
                         printf("\n\n");
                         continue;                                                 
            }
          }
        }
        else 
        {
          printf("\n"); 
          printf("密码错误！\n");
          if( g > 0)
          { 
              printf("剩余%d次机会\n",g);
          }
          else
          {
            printf("byebye!\n");
            break;
          }
        }
        
    }
    return 0;
}