string.cpp

自己编写的String类

// String.cpp: implementation of the String class.
//
//////////////////////////////////////////////////////////////////////


#include <iostream>
using namespace std;

#include "String.h"

class Date //Date类
{
public:
	unsigned int year;
	unsigned int month;
	unsigned int date;
public:
	Date operator=(const Date&);
	Date(unsigned int, unsigned int, unsigned int);
	Date();
	void ShowDate();
};

Date::Date()
{
}

bool IsYearValid(unsigned int y, unsigned int m, unsigned int d)
{
	if (m>12 || m<1)
		return false; //对月份进行处理
	bool flag=false;//判断闰年
	short dayBig;
	if (y%400==0 || (y%4==0 && y%100!=0))
		flag=true;
	if (m==1 || m==3 || m==5 || m==7 || m==8 || m==10 || m==12)
		dayBig=1;
	else if (m==2)
		dayBig=0;
	else
		dayBig=-1;
	if (dayBig==1)
	{
		if (d>31 || d<1)
			return false;
	}
	else if (dayBig==-1)
	{
		if (d>30 || d<1)
			return false;
	}
	else //对2月的判断
	{
		if (flag) //如果是闰年
		{
			if (d>29 || d<1)
				return false;
		}
		else
		{
			if (d>28 || d<1)
				return false;
		}
	}
	return true;
}

bool IsIdValid(Date b, String id) //判断身份证号是否合法
{
	if (id.Length()!=18) //18位身份证号
		return false;
	String sYear=id.SubString(6,4);
	String sMonth=id.SubString(10,2);
	String sDate=id.SubString(12,2); //从身份证中得到生日日期

	if (b.year!=atoi(sYear.MakeChar()) ||
		b.month!=atoi(sMonth.MakeChar()) || 
		b.date!=atoi(sDate.MakeChar())) //如果身份证号中的日期与出生日期不匹配
		return false;
	return true;
}

Date::Date(unsigned int y, unsigned int m, unsigned int d)
{
	if (!IsYearValid(y,m,d))
	{		
		return;
	}
	year=y;
	month=m;
	date=d;
}

Date Date::operator=(const Date& da)
{
	year=da.year;
	date=da.date;
	month=da.month;
	return *this;
}

void Date::ShowDate()
{
	if (!IsYearValid(year, month, date)) //如果日期不合法
	{
		cout<<"日期错误！"<<endl;
		return;
	}
	//cout<<"日期：";
	cout<<year<<"年"<<month<<"月"<<date<<"日"<<endl;
}

class People //People类
{
private:
	int number; //编号
	String gender; //性别
	Date birthday; //生日
	String id; //身份证号
public:
	People();
	People(int,String,Date,String); //number，gender，Date, id
	People(People&);
	~People();
public:
	void SetNumber(int);
	void SetId(String);
	void SetBirthday(Date);
	void SetGender(String);
	
	void GetNumber();
	void GetId();
	void GetBirthday();
	void GetGender();	
	void ShowMessage();	
};

inline People::People()
{
}

inline People::People(int n, String g, Date b, String i) : number(n), gender(g), birthday(b), id(i)
{	
}

inline People::People(People& p)
{
	number=p.number;
	gender=p.gender;
	birthday=p.birthday;
	id=p.id;
}

inline People::~People()
{	
}

inline void People::SetNumber(int n)
{
	number=n;
}

inline void People::SetBirthday(Date b)
{
	birthday=b;
}

inline void People::SetGender(String g)
{
	gender=g;
}

inline void People::SetId(String i)
{
	id=i;
}

inline void People::ShowMessage()
{
	cout<<"ID为"<<number<<"成员信息如下："<<endl;
	cout<<"  性别："<<gender<<endl;
	cout<<"  出生日期：";
	birthday.ShowDate();
	cout<<"  身份证号：";
	if (IsYearValid(birthday.year, birthday.month, birthday.date) && !IsIdValid(birthday, id))
		cout<<"身份证号与出生日期不匹配，或身份证号长度不为18！"<<endl;
	else
		cout<<id<<endl;		
}

void Menu() //显示菜单
{
	cout<<"---------菜单---------"<<endl;
	cout<<"<A>   录入信息"<<endl
		<<"<B>   显示信息"<<endl
		<<"<Q>   退出系统"<<endl;
	cout<<"请输入您的选择：";
}

void Input(People &p)
{
	int n; //编号
	Date b; //出生日期
	String g; //性别
	String i; //身份证号
	cout<<"编号   性别    出生日期（年月日）  身份证号"<<endl;
	cin>>n>>g>>b.year>>b.month>>b.date>>i;
	p.SetNumber(n);
	p.SetBirthday(b);
	p.SetGender(g);
	p.SetId(i);
}

int main(int argc, char* argv[])
{
	People p;
	while (true)
	{
		Menu();
		char sel; //用于选择
		cin>>sel;
		sel&=0x0df; //小写转大写，大写不变

		switch (sel)
		{
		case 'A':
			Input(p);
			break;
		case 'B':
			p.ShowMessage();
			break;
		case 'Q':
			system("pause");
			exit(0);
			break;
		default:
			cout<<"输入错误，请重新输入！"<<endl;	
		}
		system("pause");
		system("cls");
	}
	return EXIT_SUCCESS;
}


/*
int main(int argc, char * argv[])
{
	String str;	
	str="你好啊！";
	cout<<str.Length()<<endl;
	//cout<<str.SubString(2,2);
	str+="hi，你好";
	cout<<str;


	return 0;
}*/