Pet-Trading-System/宠物交易系统.cpp

#include<iostream>
#include<cstring>
#include<vector>
#include<fstream>
#include"list"
using namespace std;
class Data// 日期类
{
public:
    void set_time( );
    void show_time( );
private:
    bool is_time(int, int, int);
    int year;
    int month;
    int day;
};
void Data::set_time( )
{
	char c1,c2;
    cout<<"请输入日期(格式年-月-日)"<<endl;
    while(1)
    {
		cin>>year>>c1>>month>>c2>>day;
        if(c1!='-'||c2!='-')
            cout<<"格式不正确，请重新输入"<<endl;
        else
            break;
    }
}
void Data::show_time( )
{
	cout<<year<<"-"<<month<<"-"<<day<<endl;
}
class Pet
{
public:
  PetAnimals(){}
  PetAnimals( string Number, string Name, string Age, string Weight, string Type,
             string Price, string People )
{
	Cnumber=Number;//宠物编号：00，01，02 ...
    Cname=Name;//宠物名称:贝贝
    Cage=Age;//宠物年龄：20，14
    Cweight=Weight;//宠物重量（斤）：20，45
    Ctype=Type;//宠物种类：cat or dog...

    Cprice=Price;//宠物价格：20...
    Cpeople=People;//宠物主人：小明…
 }
	string Cnumber;
	string Cname;
	string Cage;
	string Cweight;
	string Ctype;

	string Cprice;
	string Cpeople;
 };
class guest
{
	public:
		string Cnumber;
		string Cname;
		string Cage;
		string Cweight;
		string Ctype;

		string Cprice;
		string Cpeople;
};
class PetAnimals:public Pet
{
	public:
		void Insert();//添加宠物信息
		bool Look();//查找宠物信息
		bool Change();//修改宠物信息
		void Show();//显示或浏览所有宠物信息
		bool Delete();//删除宠物信息
		void Read();//读取宠物信息文件
		void Write();//写出宠物信息文件
};
list<PetAnimals>PetList;//使用双向链表
//添加宠物信息
void PetAnimals::Insert()
{
    PetAnimals Pet;
    char ch;
    int symbol=0;//判断宠物信息是否存在
    list<PetAnimals>::iterator first,last;
    first=PetList.begin();//begin()指链表开始处
    last=PetList.end();//end()指链表结尾处
do{
    cout<<"【请输入宠物相关信息！】"<<endl;
    cout<<"编号:";
    cin>>Pet.Cnumber;
    cout<<"名称:";
    cin>>Pet.Cname;
    cout<<"年龄:";
    cin>>Pet.Cage;
    cout<<"重量:";
    cin>>Pet.Cweight;
    cout<<"种类:";
    cin>>Pet.Ctype;
    cout<<"价格:";
    cin>>Pet.Cprice;
    cout<<"主人:";
    cin>>Pet.Cpeople;
    for( ; first != last ; ++first )
    {
       if((Pet.Cname==(*first).Cname)&&(Pet.Cprice==(*first).Cprice)
          &&(Pet.Ctype==(*first).Ctype))//假设宠物可以重名
         {
            symbol=1;// 如果存在此宠物
            cout<<endl<<"该宠物已经存在!"<<endl;
            cout<<"编号:"<<(*first).Cnumber<<endl;
            cout<<"名称:"<<(*first).Cname<<endl;
            cout<<"年龄:"<<(*first).Cage<<endl;
            cout<<"重量:"<<(*first).Cweight<<endl;
            cout<<"种类:"<<(*first).Ctype<<endl;

            cout<<"价格:"<<(*first).Cprice<<endl;
            cout<<"主人:"<<(*first).Cpeople;
            }
      }
    if(symbol==0)//如果不存在此宠物
    {
        PetList.insert(PetList.end(),Pet);
      }
    cout<<endl<<"继续添加宠物信息[Y或N]?";
    cin>>ch;
    }
while(ch=='Y'||ch=='y');
 }

//查找宠物信息
bool PetAnimals::Look()
{
    string name,price,type;
    int symbol=0;
    int option;
    list <PetAnimals>::iterator first,last;
 do
  {
     cout<<"\t【请输入你查找的方式】！"<<endl;
     cout<<"\t1.按名称查找"<<endl;
     cout<<"\t2.按价格查找"<<endl;
     cout<<"\t3.按种类查找"<<endl;
     cout<<"\t4.退出！"<<endl;
     cin>>option;
    switch(option)
      {
         case 1: cout<<"请输入名称：";
         cin>>name;break;
         case 2: cout<<"请输入价格：";
         cin>>price;break;
         case 3: cout<<"请输入种类：";
         cin>>type;break;
         case 4:break;
       }
		first=PetList.begin();
		last=PetList.end();
	for(;first!=last;++first)
       {
          if((name==(*first).Cname)&&(option==1))
			{
				symbol=1;
				cout<<"宠物名称为"+(*first).Cname+"宠物信息如下："<<endl;
				cout<<"编号:"+(*first).Cnumber<<endl;
				cout<<"名称:"+(*first).Cname<<endl;
				cout<<"年龄:"+(*first).Cage<<endl;
				cout<<"重量:"+(*first).Cweight<<endl;
				cout<<"种类:"+(*first).Ctype<<endl;

				cout<<"价格:"+(*first).Cprice<<endl;
				cout<<"主人:"+(*first).Cpeople<<endl;
			}
		  if((price==(*first).Cprice)&&(option==2))
			{
				symbol=1;
				cout<<"宠物价格为"+(*first).Cprice+"宠物信息如下："<<endl;
				cout<<"编号:"+(*first).Cnumber<<endl;
				cout<<"名称:"+(*first).Cname<<endl;
				cout<<"年龄:"+(*first).Cage<<endl;
				cout<<"重量:"+(*first).Cweight<<endl;
				cout<<"种类:"+(*first).Ctype<<endl;

				cout<<"价格:"+(*first).Cprice<<endl;
				cout<<"主人:"+(*first).Cpeople<<endl;
			}
		  if((type==(*first).Ctype)&&(option==3))
			{
				symbol=1;
				cout<<"宠物种类为"+(*first).Ctype+"宠物信息如下："<<endl;
				cout<<"编号:"+(*first).Cnumber<<endl;
				cout<<"名称:"+(*first).Cname<<endl;
				cout<<"年龄:"+(*first).Cage<<endl;
				cout<<"重量:"+(*first).Cweight<<endl;
				cout<<"种类:"+(*first).Ctype<<endl;

				cout<<"价格:"+(*first).Cprice<<endl;
				cout<<"主人:"+(*first).Cpeople<<endl;
			}
		}
 }
while(option!=4);
if((first==last)&&(symbol==0))
  {
	cout<<"没有该宠物信息!";
	 return false;}
	else
	 return true;
	}

//修改宠物资料
bool PetAnimals::Change()
{
	PetAnimals pet;
	string name,price,type;
	int symbol=0;
	cout<<"请输入名称:";
	cin>>name;
	cout<<"请输入价格:";
	cin>>price;
	cout<<"请输入种类:";
	cin>>type;
	list <PetAnimals>::iterator first,last;
	first=PetList.begin();
	last=PetList.end();
	for(;first!=last;++first)
	{
		if((name==(*first).Cname)&&(price==(*first).Cprice)&&(type==(*first).Ctype))
		{
			symbol=1;
			cout<<endl<<"该宠物信息找到，其修改前的宠物信息为:"<<endl;
			cout<<"编号:"+(*first).Cnumber<<endl;
			cout<<"名称:"+(*first).Cname<<endl;
			cout<<"年龄:"+(*first).Cage<<endl;
			cout<<"重量:"+(*first).Cweight<<endl;
			cout<<"种类:"+(*first).Ctype<<endl;

			cout<<"价格:"+(*first).Cprice<<endl;
			cout<<"主人:"+(*first).Cpeople<<endl;
			break;
		}
	}
   if(symbol)
	{
		cout<<endl<<"修改后的宠物信息为:"<<endl;
		cout<<"年龄:";
		cin>>pet.Cage;
		cout<<"重量:";
		cin>>pet.Cweight;

		cout<<"主人:";
		cin>>pet.Cpeople;
		pet.Cname=name;
		pet.Cprice=price;
		pet.Ctype=type;
		for(;first!=last;++first)
		 {
			if((name==(*first).Cname)&&(price==(*first).Cprice)&&(type==(*first).Ctype))
			  {
			    (*first)=pet;
			  }
		 }
			return true;
	}
			else
			 {
			  cout<<"没有该宠物信息!";
			return false;
			 }
}

//显示所有宠物信息
void PetAnimals::Show()
{
	list <PetAnimals>::iterator first,last,it;
	first=PetList.begin();
	last=PetList.end();
	for(;first!=last;++first)
	{
		cout<<"******************您的宠物信息**********************"<<endl;
		cout<<"编号:"<<(*first).Cnumber<<endl;
		cout<<"名称:"<<(*first).Cname<<endl;
		cout<<"年龄:"<<(*first).Cage<<endl;
		cout<<"重量:"<<(*first).Cweight<<endl;
		cout<<"种类:"<<(*first).Ctype<<endl;

		cout<<"价格:"<<(*first).Cprice<<endl;
		cout<<"主人:"<<(*first).Cpeople<<endl;
		cout<<"****************************************"<<endl;
	}
}

//保存宠物信息
void PetAnimals::Write()
{
	char file[256];
	string FileName;
	cout<<"请输入文件名:(可以加扩展名!如.txt)";
	//若输入完整路径则在你输入的路径下读取文件,否则到程序所在位置的文件夹中读取
	cin>>FileName;
	if(FileName.find (".")>FileName.length())
	 {
	    FileName=FileName+".txt";
	 }
	//把String型的字符串转换成char*型的字符串
	strcpy(file,FileName.c_str());
	ofstream fout(file);
	if(!fout)
	 {
	    cout<<"★文件写入失败!请检查您的文件名!"<<endl;
 	    return;
	 }
    else
	 {
		list <PetAnimals>::iterator first,last;
		first=PetList.begin();
		last=PetList.end();
		for(;first!=last;++first)
		 {
		    fout<<endl<<"编号:"<<(*first).Cnumber<<endl<<"名称:"<<(*first).Cname<<endl
		           <<"年龄:"<<(*first).Cage<<endl<<"重量:"<<(*first).Cweight<<endl
		           <<"种类:"<<(*first).Ctype<<endl
		           <<"价格:"<<(*first).Cprice<<endl<<"主人:"<<(*first).Cpeople<<endl;
		 }
		cout<<"★文件保存成功!"<<endl;
	 }
	fout.close ();//关闭打开的文件
}

//读取宠物信息
void PetAnimals::Read()
{
	char file[256];
	string FileName;
	cout<<"★请输入文件名:(可以加扩展名!如.txt)";
	cin>>FileName;
	if(FileName.find (".")>FileName.length())
	 {
	    FileName=FileName+".txt";
	 }
		strcpy(file,FileName.c_str());
		ifstream fin(file);
		int index;
	if(!fin)
	 {
		cout<<"文件写入失败!请检查您的文件名！"<<endl;
		return ;
	  }
	else
	{
		PetList.clear ();
		while(!fin.eof())//判断是否处于结尾
		{
			PetAnimals pet;
			string str;
			fin>>str;
			index=str.find(":");//要":"后的内容
			pet.Cnumber =str.substr(index+1);//要":"后的剩下字符串
			fin>>str;
			index=str.find (":");
			pet.Cname =str.substr(index+1);
			fin>>str;
			index=str.find (":");
			pet.Cage =str.substr(index+1);
			fin>>str;
			index=str.find (":");
			pet.Cweight =str.substr(index+1);
			fin>>str;
			index=str.find (":");
			pet.Ctype =str.substr(index+1);

			fin>>str;
			index=str.find (":");
			pet.Cprice=str.substr(index+1);
			fin>>str;
			index=str.find (":");
			pet.Cpeople =str.substr(index+1);
			PetList.insert(PetList.end(),pet);

		}

	    cout<<"   文件读取成功!             "<<endl;
	}
	fin.close();
}
int main()
{
	PetAnimals pet;
	int option;
do
 {
	cout<<endl<<"        【欢迎进入宠物交易系统！】"<<endl;
	cout<<" \t┌-------------------------┐"<<endl;
	cout<<" \t┊ 1.添加宠物的信息        ┊"<<endl;
	cout<<" \t┊ 2.查找宠物的信息        ┊"<<endl;
	cout<<" \t┊ 3.修改宠物的信息        ┊"<<endl;
	cout<<" \t┊ 4.显示宠物的信息        ┊"<<endl;

	cout<<" \t┊ 5.保存文件              ┊"<<endl;
	cout<<" \t┊ 6.读取文件              ┊"<<endl;
	cout<<" \t┊ 7.退出系统              ┊"<<endl;
	cout<<" \t└-------------------------┘\n"<<endl;
	cin>>option;
 switch(option)//选择不同函数功能
	{
		case 1: { pet.Insert(); break; }
		case 2: { pet.Look(); break; }
		case 3: { pet.Change(); break; }
		case 4: { pet.Show(); break; }

		case 5: { pet.Write(); break; }
		case 6: { pet.Read(); break; }
		case 7: { break ; }
	}
 }
 while(option != 8);
 return 0;
}