我有一个使用c ++的Unidentified参考

Question

这是一个赋值我的问题是函数moneyCount（）但是当构建或试图用主程序运行它时，它说的是一个Unidentified引用。这是money.cpp文件。

#include <iostream>
#include "money.h"


double ones =1.00;
double fives=5.00;
double tens=10.00;
double twentys=20.00;
double quarter=0.25;
double total_bills_1=400.00;
double total_bills_5=300.00;
double total_bills_10= 200.00;
double total_bills_20= 50.00;
double total_bills_quarters=500.00;
double total_ones = total_bills_1*ones;
double total_fives= total_bills_5*fives;
double total_tens=total_bills_10*tens;
double total_20=total_bills_20*twentys;
double total_quarters= total_bills_quarters*quarter;
double total_bills= total_ones+total_fives+total_tens+total_20+total_quarters;
void moneyCount(){
std::cout<<"  1 : One Dollar               :   "<<total_bills_1<<"    :    "<<total_ones<<"\n"
    <<"  2 : Five Dollar              :   "<<total_bills_5<<"    :    "<<total_fives<<"\n"
    <<"  3 : Ten Dollar               :   "<<total_bills_10<<"    :    "<<total_tens<<"\n"
    <<"  4 : Twenty Dollar            :   "<<total_bills_20<<"    :    "<<total_20<<"\n"
    <<"  5 :Quarter                   :   "<<total_bills_quarters<<"    :    "<<total_quarters<<"\n";
}