我想问一下如何将Opt的链接列表存储在CustomerData的链接列表中？我现在使用的方法是分别创建两个链接列表。当我需要打印出我拥有的所有收据时，我需要使用if语句（optical_data.currentOpticalTrace == customer_data.currentCustomerTrace）才能打印出收据。但是，每个客户实际上并未将Optical_data保留在customer_data中。此外，每次客户循环时，光节点都需要从第一个节点运行到最后一个节点。如何使代码更高效并减少可重复性？
#include<iostream>
#include <string>
#include <iomanip>
using namespace std;
struct Frame
{
int index;
string itemCode;
string name;
int quantity;
double price;
};
struct CustomerData
{
string customerName;
int currentCustomerTrace;
};
struct CustomerDataNode
{
CustomerData customer_data;
CustomerDataNode *next;
CustomerDataNode *c_head, *c_tail;
};
struct Opt
{
string SitemCode;
string Sname;
double Sprice;
int Squantity;
int currentOpticalTrace;
};
struct OptNode
{
Opt optical_data;
OptNode *next;
OptNode *o_head, *o_tail;
};
class PurchaseSell
{
private:
int customerTrace;
int opticalTrace;
Frame frame;
CustomerDataNode cNode;
OptNode oNode;
CustomerData customer;
Opt opt;
public:
PurchaseSell();
void mainMenu_Sell();
void addOrder();
void customerCreateNode();
void opticalCreateNode();
void printReceipt();
void printAllReceipt();
Opt getOrder(Opt,string, string, double, int);
void viewFrame();
};
PurchaseSell::PurchaseSell()
{
customerTrace = 0;
opticalTrace = 0;
cNode.c_head = NULL;
cNode.c_tail = NULL;
oNode.o_head = NULL;
oNode.o_tail = NULL;
frame.index=1;
frame.itemCode="F0001";
frame.name="FRAME 1";
frame.price=50.00;
frame.quantity=20;
}
void PurchaseSell::mainMenu_Sell()
{
int optS;
bool inputSell=true;
system("cls");
cout<<"\t\t\t************ WELCOME TO CLEAR VISION OPTICAL SHOP ************"<<endl;
cout<<endl<<"\t\t\t\t\t\t Sell Menu"<<endl<<endl;
cout<<"\t\t\t\t\t 1. Make New Order"<<endl;
cout<<"\t\t\t\t\t 2. Print All Receipt"<<endl;
cout<<"\t\t\t************ ************************************* ************"<<endl<<endl;
cout<<"Please enter your option"<<endl;
cin>>optS;
switch(optS)
{
case 1:
addOrder();
break;
case 2:
printAllReceipt();
break;
default:
cout<<"Invalid input.";
}
}
void PurchaseSell::customerCreateNode()
{
CustomerDataNode *ctemp = new CustomerDataNode;
ctemp->customer_data = customer;
ctemp->next = NULL;
if(cNode.c_head==NULL)
{
cNode.c_head=ctemp;
cNode.c_tail=ctemp;
ctemp=NULL;
}
else
{
cNode.c_tail->next=ctemp;
cNode.c_tail=ctemp;
}
}
void PurchaseSell::opticalCreateNode()
{
OptNode *otemp = new OptNode;
otemp->optical_data = opt;
otemp->next = NULL;
if(oNode.o_head==NULL)
{
oNode.o_head=otemp;
oNode.o_tail=otemp;
otemp=NULL;
}
else
{
oNode.o_tail->next=otemp;
oNode.o_tail=otemp;
}
}
Opt PurchaseSell::getOrder(Opt o, string itemCode, string name, double price, int Squantity)
{
o.SitemCode = itemCode ;
o.Sname = name ;
o.Sprice = price ;
o.Squantity = Squantity ;
return o;
}
void PurchaseSell::viewFrame()
{
cout<<"\t\t\t************ GLASS FRAME LIST ************"<<endl<<endl;
cout << "Index" << setw(20) << "Item Code" << setw( 20 ) << "Name" << setw( 20 ) << "Quantity" << setw( 20 ) << "Price(RM)" << setw( 20 ) << endl;
cout << setw( 5 )<< 1 << setw( 20 ) << frame.itemCode << setw( 20 ) << frame.name<< setw( 20 ) << frame.quantity << setw( 20 ) << frame.price << setw( 20 ) <<endl<<endl;
}
void PurchaseSell::addOrder()
{
int choice;
int quantityS;
int quantityOptical;
int pairs = 0;
system("cls");
cout<<"Please enter the customer name: "<<endl;
cin>> customer.customerName;
opticalTrace = opticalTrace +1;
viewFrame();
do{
cout<<"Please enter quantity to buy:\n" <<endl;
cin>>quantityS;
quantityOptical = frame.quantity-quantityS;
frame.quantity=quantityOptical ;
opt=getOrder(opt, frame.itemCode, frame.name, frame.price*quantityS, quantityS);
opt.currentOpticalTrace=opticalTrace;
opticalCreateNode();
cout<<"\n\nPlease enter your option\n";
cout<<"1) Continue to add on other optical type\n";
cout<<"2) Complete order\n" ;
cin>>choice;
if(choice==1)
{
pairs = pairs+1;
if(pairs==4)
{
cout<<"Customer has reach the order maximum 4 pairs of optical orders regardless the optical type."<<endl<<endl;
customerTrace= customerTrace+1;
customer.currentCustomerTrace=customerTrace;
customerCreateNode();
printReceipt();
}
}
else
{ customerTrace= customerTrace+1;
customer.currentCustomerTrace=customerTrace;
customerCreateNode();
printReceipt();
}
}while(choice==1 && !(pairs >=4) );
}
void PurchaseSell::printReceipt()
{
system("cls");
CustomerDataNode *ctemp = new CustomerDataNode;
OptNode *otemp = new OptNode;
ctemp = cNode.c_head;
otemp = oNode.o_head;
while(ctemp!=NULL)
{
if(ctemp->customer_data.currentCustomerTrace==customerTrace)
{
cout<<"CurrentCustomerTrace:" << ctemp->customer_data.currentCustomerTrace<<endl;
cout<<"Customer Name:" << ctemp->customer_data.customerName<<endl;
cout << "Item Code" << setw( 20 ) << "Name" << setw( 20 ) << "Quantity" << setw( 20 ) << "Amount(RM)" << endl;
while(otemp!=NULL)
{
if(otemp->optical_data.currentOpticalTrace == opticalTrace)
{
cout << otemp->optical_data.SitemCode << setw( 20 )
<<otemp->optical_data.Sname << setw( 20 ) << otemp->optical_data.Squantity << setw( 20 ) << otemp->optical_data.Sprice <<endl<<endl;
}
otemp = otemp->next;
}
}
ctemp = ctemp->next;
}
system("PAUSE");
}
void PurchaseSell::printAllReceipt()
{
CustomerDataNode *ctemp = new CustomerDataNode;
OptNode *otemp = new OptNode;
ctemp = cNode.c_head;
otemp = oNode.o_head;
while(ctemp!=NULL)
{
cout<<"CurrentCustomerTrace:" << ctemp->customer_data.currentCustomerTrace<<endl;
cout<<"Customer Name:" << ctemp->customer_data.customerName<<endl;
cout << "Item Code" << setw( 20 ) << "Name" << setw( 20 ) << "Quantity" << setw( 20 ) << "Amount(RM)" << endl;
otemp = oNode.o_head;
while(otemp!=NULL)
{
if(otemp->optical_data.currentOpticalTrace == ctemp->customer_data.currentCustomerTrace)
{
cout << otemp->optical_data.SitemCode << setw( 20 ) <<otemp->optical_data.Sname
<< setw( 20 ) << otemp->optical_data.Squantity << setw( 20 ) << otemp->optical_data.Sprice <<endl<<endl;
}
otemp = otemp->next;
}
ctemp = ctemp->next;
}
system("PAUSE");
}
int main()
{
PurchaseSell p;
while(true)
{
p.mainMenu_Sell();
}
}