employee.cpp

Ｃ语言做的超市进销存源代码文件

#include<iostream>
#include<fstream>
#include<conio.h>
#include<iomanip>
#include<windows.h>
#include<string>
#include<sstream>
#include<cassert>
#include"employee.h"
using namespace std;
void inline clear()
{
	system("PAUSE");
	system("cls");
	cout<<"                     ***********************"<<endl;
	cout<<"                     *                     *"<<endl;
	cout<<"                     *     ——  超市      *"<<endl;
	cout<<"                     *                     *"<<endl;
	cout<<"                     *    "<<__DATE__<<"      *"<<endl;
	cout<<"                     *     "<<__TIME__<<"        *"<<endl;
	cout<<"                     ***********************"<<endl;	
}
Employee::Employee()
{
	file.open("employee.dat",ios::out|ios::in);
	if(file.fail())
	{
		cerr<<"\n缺少文件“employee.dat”!!\n";
	}
	file.seekg(0,ios::end);
	streampos pos3=file.tellg();
	if((int)pos3==0)
	{		
		cout<<"正在初始化员工文件..."<<endl;
		emp.accounts=0;
		strcpy(emp.name,"manager");
		strcpy(emp.password,"manager");
		strcpy(emp.date,"00:00:00");
		strcpy(emp.id_card,"000000000000000000");
		file.seekg(0);
		file.write((char*)&emp,sizeof(employee));
	}
	memset( emp.name,' ',sizeof(emp.name) );	
}
Employee::~Employee()
{
	file.close();
}
void Employee::input_password()
{
		char *ptr=emp.password;
		int count=0;
		do
		{
		char ch=getch();
		if(ch == 0x0A || ch == 0x0D)break;//回车
		else if(isdigit(ch)||isalpha(ch))
		{
			*ptr++=ch;
			cout<<"*";	 count++; 
		}
		else if(ch=='\b'&& ptr>emp.password)
		{
			*(--ptr)='\0';
			cout<<"\b \b";
		    count--;         
		}
		}while(count<10);
		emp.password[count]='\0';
}
void Employee::new_employee()
{
	
		cout<<"\n             注册_________________雇员：";
		cout<<"\n_______________________________________________";
		cout<<"\n你确定注册一个新帐号吗?(回车确认)";
   		char get_ok=getche();
		if(get_ok==13)
		{
			while(1)
			{	
				system("cls");
				cout<<"\n请输入你的密码:(长度小于10位)\n密码:";
				string s1,s2;
				Employee::input_password();	
				s1=emp.password;
				cout<<"\n密码:";
				input_password();
				s2=emp.password;
				if(s1==s2)break;
				else cerr<<"\n\nError:密码不一致!重试!!\n";
			}
			cout<<"\n请输入你的资料：\n姓名: ";
			cin>>emp.name;
			cout<<"\n身份证号：";
			cin>>emp.id_card;
			ostringstream os;//注册日期
			SYSTEMTIME st; 
			GetLocalTime(&st);
			os<<st.wYear<<"/"<<st.wMonth<<"/"<<st.wDay<<"/"<<st.wHour<<":"<<st.wMinute
				<<":"<<st.wSecond<<endl;
			cout<<"创建日期："<<st.wYear<<"/"<<st.wMonth<<"/"<<st.wDay<<"/"<<st.wHour
				<<":"<<st.wMinute<<":"<<st.wSecond<<endl;
			string s5=os.str();
			const char* c5=s5.c_str();
			strcpy(emp.date,c5);
			file.seekp(0,ios_base::end);//写入文件
			streampos ps=file.tellg();
			int size=sizeof(employee);//68
			emp.accounts=ps/size;
			//先查找，看这次的号是否要覆盖00号
			file.seekg(0);
			employee e_sure;
			file.read((char*)&e_sure,sizeof(employee));
			//先读取第一个帐号，
			if(emp.accounts==1&&!strcmp(e_sure.id_card,"000000000000000000"))
			{
				file.seekp(0,ios::beg);
				emp.accounts=0;
				cout<<"\n恭喜：你已经成为该超市的管理员，你的ID为00，有权对超市进行管理!!!\n";
				cout<<"\n下次请以该号码登入!!!"<<endl;
			}
			else
			{
				file.seekp(0,ios_base::end);
				cout<<"你的ID为："<<setw(2)<<setfill('0')<<emp.accounts<<endl;
				cout<<"\n下次请以该号码登入!!!"<<endl;
			}
			file.write((char*)&emp,sizeof(employee));
		}
	system("PAUSE");
	system("cls");
	cout<<"                     ***********************"<<endl;
	cout<<"                     *                     *"<<endl;
	cout<<"                     *     ——  超市      *"<<endl;
	cout<<"                     *                     *"<<endl;
	cout<<"                     ***********************"<<endl;
}
int Employee::landing()
{
	cout<<"\n                     =========登入==========\n";
	cout<<"                     =======================\n";
	cout<<"-----------------------------------------------------------------\n";
	bool right=true;
	int size1=0;
	file.seekg(0,ios::end);
	streampos ps1=file.tellp();

	while(right)
	{
		cout<<"\n              帐号: ";
		while(1)
		{
			cin>>emp.accounts;
			if(cin.fail())
			{
				cin.clear(ios::goodbit);
				fflush(stdin);
				cout<<"\nError!!\n             帐号: ";
				continue;
			}
			else break;
		}	//判断文件大小
		if(emp.accounts>1000){cout<<"\nError:帐号错误!!\n";continue;}
		size1=(emp.accounts+1)*sizeof(employee);
		if(size1>ps1)
		{ 
			cout<<"\n该帐号不存在!!"<<endl;		
			clear();
			continue;
		}
		cout<<endl<<"              密码: ";
		input_password();
		string s3=emp.password;
		file.seekg((emp.accounts)*(sizeof(employee)+1));
		file.read((char*)&emp,sizeof(employee));
		string s4=emp.password;
		int account=emp.accounts;
		if(s3==s4)
		{
			cout<<"\n++++++你已经成功登陆"<<emp.accounts<<"号服务员,请作业+++++\n";
			cout<<"++++++++++++++++++++++++++++++++++++++++++++\n";
			right=false;
		}
		else{ cerr<<"\n密码错误!!!";clear();}
	}
	return emp.accounts;
}
void Employee::change_password()
{
	cout<<"\n\n                 ========修改密码==(请先登陆)======\n";
	cout<<"===================================================\n";
	int no_account=landing();
	while(1)
	{
	cout<<"\n请输入你修改后的密码： ";
	string s3,s4;
	input_password();
	s3=emp.password;
	cout<<"\n请再次输入你的新密码： ";
	input_password();
	s4=emp.password;
	if(s3==s4)break;
	else cerr<<"\n密码不一致，请重试!"<<endl;
	}	//写入文件
	file.seekp((emp.accounts)*(sizeof(employee)+1));
	file.write((char*)&emp,sizeof(employee));
}
void Employee::view_record()
{
	cout<<"\n      -------员工资料阅览---------\n";
	cout<<"**********************************\n";
	cout<<"帐号|     密码      |     姓名    |     身份证       |        创建日期      | \n";
       file.seekg(0,ios::beg);
	while(file.read((char*)&emp,sizeof(employee)))
	{		
	cout<<setw(2)<<setfill('0')<<emp.accounts<<setfill(' ')
		<<setw(15)<<emp.password<<setw(15)<<emp.name
		<<setw(23)<<emp.id_card<<setw(23)<<emp.date;
	}
	file.clear(ios::goodbit);
}