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关键代码如下所示：
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <list>
using namespace std;
class Violation{
public:
Violation(){points=fine=0;
number=carNumber=tel=location=isSpot
=police=camera=type=isTreated=treatmentDate=notes="";}
Violation(string snumber,string sdate="",string scarNumber="",string stel="",
string slocation="",int ipoints=-1,string sisSpot="",
string spolice="",string scamera="",string itype="",int ifine=0,
string sisTreated="",string streatmentDate="",string snotes="")
:number(snumber),date(sdate),carNumber(scarNumber),tel(stel),
location(slocation),points(ipoints),isSpot(sisSpot),police(spolice),
camera(scamera),type(itype),fine(ifine),isTreated(sisTreated),
treatmentDate(streatmentDate),notes(snotes){}
bool operator==(const Violation& vltn); //查找用
friend bool compNumber(Violation& vltn1,Violation& vltn2); //编号比较规则
friend bool compDate(Violation& vltn1,Violation& vltn2); //日期比较规则
friend bool compCarNumber(Violation& vltn1,Violation& vltn2); //车牌号比较规则
friend bool compLocation(Violation& vltn1,Violation& vltn); //地点比较规则
friend bool compPoints(Violation& vltn1,Violation& vltn); //扣分比较规则
friend istream& operator>>(istream& input,Violation& vltn);
friend ostream& operator<<(ostream& output,Violation& vltn);
friend class List;
friend int saveFile();
private:
string number; //编号
string date; //日期
string carNumber; //车牌号
string tel; //联系电话-
string location; //地点
int points; //扣分
string isSpot; //现场
string police; //现场执勤交警
string camera; //非现场摄像头编号
string type; //违章类别
int fine; //罚款
string isTreated; //是否处理
string treatmentDate; //处理日期
string notes; //备注
};
bool Violation::operator==(const Violation& vltn){
if(location==""||vltn.location=="")
if(tel==""||vltn.tel=="")
if(carNumber==""||vltn.carNumber=="")
if(date==""||vltn.date=="")
return number==vltn.number;
else return date==vltn.date;
else return carNumber==vltn.carNumber;
else return tel==vltn.tel;
else return location==vltn.location;
}
bool compNumber(Violation& vltn1,Violation& vltn2){
return vltn1.number>vltn2.number;
}
bool compDate(Violation& vltn1,Violation& vltn2){
return vltn1.date>vltn2.date;
}
bool compCarNumber(Violation& vltn1,Violation& vltn2){
return vltn1.carNumber<vltn2.carNumber;
}
bool compLocation(Violation& vltn1,Violation& vltn2){
return vltn1.location>vltn2.location;
}
bool compPoints(Violation& vltn1,Violation& vltn2){
return vltn1.points>vltn2.points;
}
istream& operator>>(istream& input,Violation& vltn){
input>>vltn.number>>vltn.date>>vltn.carNumber>>vltn.tel>>vltn.location
>>vltn.points>>vltn.isSpot>>vltn.police>>vltn.camera>>vltn.type
>>vltn.fine>>vltn.isTreated>>vltn.treatmentDate>>vltn.notes;
return input;
}
ostream& operator<<(ostream& output,Violation& vltn){
output<<setw(6)<<vltn.number
<<setw(9)<<vltn.date
<<setw(9)<<vltn.carNumber
<<setw(12)<<vltn.tel
<<setw(11)<<vltn.location
<<setw(5)<<vltn.points
<<setw(9)<<vltn.isSpot
<<setw(13)<<vltn.police
<<setw(17)<<vltn.camera
<<setw(11)<<vltn.type
<<setw(5)<<vltn.fine
<<setw(9)<<vltn.isTreated
<<setw(9)<<vltn.treatmentDate
<<setw(33)<<vltn.notes<<endl;
return output;
}
class List{
public:
friend class User;
int loadFile(); //读取文件
int saveFile(); //保存到文件
int insert(); //添加记录
int change(); //修改记录
int del(); //删除记录
int browse(); //浏览记录
int searchMenu(); //查询信息
int searchCarNumber(); //按车牌号
int searchDate(); //按日期查找
int searchTel(); //按电话查找
int searchLocation(); //按地点查询
int countMenu(); //统计信息
int countDate(); //按日期统计违章
int countCarNumber(); //按车牌统计违章
int countLocation(); //按地点统计违章
int countPoints(); //按扣分统计违章
static List* getList();
private:
list <Violation> vltnlist;
static List* m_list;
List(){};
List(const List&){}
List& operator=(const List&){}
};
const char* filepath="violation.dat"; //指定数据文件路径
bool checkNumber(string s,int size){
if(s.size()!=size) return false;
for(int i=0;i<size;i++)
if(s[i]<'0'||s[i]>'9') return false;
return true;
}
List* List::m_list=NULL;
List* List::getList(){
if(NULL==m_list) m_list=new List;
return m_list;
}
int List::loadFile(){
ifstream infile(filepath,ios::in);
if(infile)
for(;!infile.eof();){
Violation vltn;infile>>vltn;
vltnlist.push_back(vltn);
}
infile.close();
return 0;
}
int List::saveFile(){
ofstream outfile(filepath,ios::out);
list<Violation>::iterator it;
for(it=vltnlist.begin();it!=vltnlist.end();it++)
outfile<<endl<<it->number<<' '<<it->date<<' '<<it->carNumber<<' '
<<it->tel<<' '<<it->location<<' '<<it->points<<' '<<it->isSpot<<' '
<<it->police<<' '<<it->camera<<' '<<it->type<<' '<<it->fine<<' '
<<it->isTreated<<' '<<it->treatmentDate<<' '<<it->notes;
outfile.close();
return 0;
}
int List::insert(){
list<Violation>::iterator it;
string number,date,carNumber,tel,location,isSpot,police,camera,type,
isTreated,treatmentDate,notes;
int points,fine;
cout<<"请输入违章编号【放弃添加 0】【5位数字，如16384】：";
for(;;){
cin>>number;cin.sync();
if(number=="0") return 0;
if(!checkNumber(number,5)) {
cout<<"请输入有效编号：";
continue;
}
Violation l(number);
it=find(vltnlist.begin(),vltnlist.end(),l);
if(it!=vltnlist.end())
cout<<"编号已存在，请重新输入：";
else break;
}
cout<<"请输入违章日期【8位数字，如20160630】：";
while(1){
cin>>date;cin.sync();
if(!checkNumber(date,8)){
cout<<"请输入有效日期：";
continue;
}
else break;
}
cout<<"请输入违章车辆车牌号：";cin>>carNumber;cin.sync();
cout<<"请输入登记联系电话【11位数字，如13751516464】：";
while(1){
cin>>tel;cin.sync();
if(!checkNumber(tel,11)){
cout<<"请输入有效电话：";
continue;
}
else break;
}
cout<<"请输入违章地点：";cin>>location;cin.sync();
cout<<"请输入处罚扣分【0~12分】：";
while(1){
if(cin>>points){
cin.sync();
if(points<0||points>12){
cout<<"请输入有效扣分：";
continue;
}
else break;
}
else{
cin.clear();cin.sync();
cout<<"请输入有效扣分：";
continue;
}
}
cout<<"请输入是否现场【是 1】：";cin>>isSpot;cin.sync();
if(isSpot=="1"){
cout<<"请输入现场执勤交警：";cin>>police;cin.sync();
isSpot="是";camera="现场";
}
else{
cout<<"请输入非现场摄像头编号【6位数字，如646464】：";
while(1){
cin>>camera;cin.sync();
if(!checkNumber(camera,6)){
cout<<"请输入有效编号：";
continue;
}
else break;
}
isSpot="否";police="非现场";
}
cout<<"*******************************************************"<<endl;
cout<<"* ┌------------违章类别-------------请输入---------┐*"<<endl;
cout<<"* | | *"<<endl;
cout<<"* | ◆ 超速 1 | *"<<endl;
cout<<"* | ◆ 酒驾 2 | *"<<endl;
cout<<"* | ◆ 闯红灯 3 | *"<<endl;
cout<<"* | ◆ 违规变道 4 | *"<<endl;
cout<<"* | ◆ 未系安全带 5 | *"<<endl;
cout<<"* | ◆ 超载 6 | *"<<endl;
cout<<"* | | *"<<endl;
cout<<"* └------------------------------------------------┘*"<<endl;
cout<<"********************************************