我已经进行了一段时间的编码，这可能是一个容易犯的错误，我只是忽略了睡眠不足，但问题发生在这段代码中。
do
{
aWithIntAcct.enterAccountData();
aWithIntAcct.getSavInfo();
aWithIntAcct.getCheckingInfo();
checkAcct.push_back(aWithIntAcct);
cout << "Would you like to enter another Checking Account with interest? y or n ";
cin >> quitChar;
}while(quitChar != QUIT);
它说我对'enterAccountData'的访问不明确（错误C2385） 这与未找到的其他（错误C3861）标识符相矛盾。
我的类是继承的，所以我不知道为什么这个为我工作。有什么建议吗？
REST代码：
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
using namespace std;
template <class T>
void repeatValue(T val, int times)
{
for(int x = 0; x < times; x++)
{
cout << "-";
}
};
template <class T>
void produceReport(int tableRows, string title, T acctType)
{
cout << tableRows << endl;
cout << title << endl;
cout << acctType;
};
class BankAccount
{
friend ostream& operator<<(ostream&, const BankAccount&);
friend istream& operator>>(istream&, BankAccount&);
private:
int acctNum;
double acctBal;
public:
BankAccount(int = 0,double = 0.0);
double operator+=(BankAccount);
int operator+(BankAccount);
friend bool operator>(BankAccount &acctBalOne, BankAccount &acctBalTwo);
friend bool operator<(BankAccount &acctBalOne, BankAccount &acctBalTwo);
int operator==(const BankAccount acctNumOne);
void enterAccountData();
void displayAccount();
void setAcctNum(int);
void setAcctBal(double);
int getAcctNum();
double getAcctBal();
};
BankAccount::BankAccount(int num, double bal)
{
acctNum = num;
acctBal = bal;
}
double BankAccount::operator+=(BankAccount bankAcct)
{
acctBal += acctBal + bankAcct.acctBal;
return acctBal;
}
int BankAccount::operator+(BankAccount newAcctNum)
{
const int INCREMENT = 1;
newAcctNum.acctNum = acctNum + INCREMENT;
return newAcctNum.acctNum;
}
bool operator>(BankAccount &acctBalOne, BankAccount &acctBalTwo)
{
return acctBalOne.acctBal > acctBalTwo.acctBal;
}
bool operator<(BankAccount &acctBalOne, BankAccount &acctBalTwo)
{
return acctBalOne.acctBal < acctBalTwo.acctBal;
}
int BankAccount::operator== (const BankAccount acctNumOne)
{
int truth = 0;
if(acctNum == acctNumOne.acctNum)
truth = 1;
return truth;
}
ostream& operator<<(ostream& display, const BankAccount& aAcct)
{
display << "Account #" << aAcct.acctNum << endl;
display << "Account Balance $" << aAcct.acctBal << endl;
return display;
}
istream& operator>>(istream& dataIn, BankAccount& aAcct)
{
cout << endl << "Enter in an Account # ";
dataIn >> aAcct.acctNum;
cout << "Enter in an Account Balance $ ";
dataIn >> aAcct.acctBal;
return dataIn;
}
void BankAccount::enterAccountData()
{
cout << "Enter the Account:#";
cin >> acctNum;
cout << endl << "Enter the Account Balance:$";
cin >> acctBal;
}
void BankAccount::displayAccount()
{
cout << "The Account number is #" << acctNum << endl;
cout << "The Account Balance is $" << acctBal << endl;
}
void BankAccount::setAcctNum(int num)
{
acctNum = num;
}
void BankAccount::setAcctBal(double bal)
{
acctBal = bal;
}
int BankAccount::getAcctNum()
{
return acctNum;
}
double BankAccount::getAcctBal()
{
return acctBal;
}
class SavingsAccount : public BankAccount
{
friend ostream& operator<<(ostream&, const SavingsAccount&);
private:
double interest;
public:
SavingsAccount(double = 0.0);
void displaySavAccount();
void getSavInfo();
};
SavingsAccount::SavingsAccount(double intRate)
{
interest = intRate;
}
void SavingsAccount::getSavInfo()
{
cout << "Enter Interest Rate: ";
cin >> interest;
}
ostream& operator<<(ostream& display, SavingsAccount& aSavAcct)
{
aSavAcct.displaySavAccount();
return display;
}
void SavingsAccount::displaySavAccount()
{
cout << " Savings information. " << endl;
cout << "Interest Rate on the account is:" << interest << endl;
}
class CheckingAccount : public BankAccount
{
friend ostream& operator<<(ostream& display, const CheckingAccount& aCheckAcct);
private:
double monthlyFee;
int checksAllowed;
public:
CheckingAccount(double = 0,int = 0,int = 0,double = 0);
void displayCheckAccount();
void getCheckingInfo();
};
CheckingAccount::CheckingAccount(double fee, int allowed, int num, double bal) : BankAccount(num,bal), monthlyFee(fee), checksAllowed(allowed)
{
}
void CheckingAccount::getCheckingInfo()
{
cout << "Enter monthly fee of the Account for the checking account. $";
cin >> monthlyFee;
cout << endl << "How many checks are allowed?" << endl;
cin >> checksAllowed;
}
ostream& operator<<(ostream& display, CheckingAccount& aCheckAcct)
{
aCheckAcct.displayCheckAccount();
return display;
}
void CheckingAccount::displayCheckAccount()
{
cout << " Checking Information " << endl;
BankAccount::displayAccount();
cout << "Monthly fee on the account is:$" << monthlyFee << endl;
cout << "Checks allowed for this account is: " << checksAllowed << endl;
}
class CheckingWithInterest : public SavingsAccount, public CheckingAccount
{
private:
public:
CheckingWithInterest();
void displayWithInterest();
};
CheckingWithInterest::CheckingWithInterest() : CheckingAccount(0,0,9999,0), SavingsAccount(0.03)
{}
void CheckingWithInterest::displayWithInterest()
{
CheckingAccount::displayCheckAccount();
SavingsAccount::displaySavAccount();
}
int main()
{
cout << fixed << setprecision(2);
unsigned count;
vector<SavingsAccount>savAcct;
SavingsAccount aSavAcct;
vector<CheckingAccount>checkAcct;
CheckingAccount aCheckAcct;
vector<CheckingWithInterest>withIntAcct;
CheckingWithInterest aWithIntAcct;
const char QUIT = 'n';
char quitChar = 'y';
cout << "Do you want to enter Savings Information? y or n ";
cin >> quitChar;
do
{
aSavAcct.enterAccountData();
aSavAcct.getSavInfo();
savAcct.push_back(aSavAcct);
cout << "Would you like to enter another Savings Account? y or n ";
cin >> quitChar;
}while(quitChar != QUIT);
cout << "Do you want to enter Checking Information? y or n ";
cin >> quitChar;
do
{
aCheckAcct.enterAccountData();
aCheckAcct.getCheckingInfo();
checkAcct.push_back(aCheckAcct);
cout << "Would you like to enter another Checking Account? y or n ";
cin >> quitChar;
}while(quitChar != QUIT);
cout << "Do you want to enter Checking with interest account Information? y or n ";
cin >> quitChar;
do
{
aWithIntAcct.enterAccountData(); // error points here for both (Line 233)
aWithIntAcct.getSavInfo();
aWithIntAcct.getCheckingInfo();
checkAcct.push_back(aWithIntAcct);
cout << "Would you like to enter another Checking Account with interest? y or n ";
cin >> quitChar;
}while(quitChar != QUIT);
sort(savAcct.begin(), savAcct.end());
for(count = 0; count < savAcct.size(); ++count)
{
repeatValue(savAcct.at(count), count);
cout << endl;
produceReport(savAcct.size(), "Savings Account Information", savAcct.at(count));
}
sort(checkAcct.begin(), checkAcct.end());
for(count = 0; count < checkAcct.size(); ++count)
{
repeatValue(checkAcct.at(count), count);
cout << endl;
produceReport(checkAcct.size(), "Checking Account Information", checkAcct.at(count));
}
sort(withIntAcct.begin(), withIntAcct.end());
for(count = 0; count < withIntAcct.size(); ++count)
{
repeatValue(withIntAcct.at(count), count);
cout << endl;
produceReport(withIntAcct.size(), "Checking with interest Account Information", withIntAcct.at(count));
}
system("pause");
return 0;
}
答案 0 :(得分：13)
class BankAccount
class SavingsAccount : public BankAccount
class CheckingAccount : public BankAccount
class CheckingWithInterest : public SavingsAccount, public CheckingAccount
此继承层次结构（可能）不正确。现在它看起来像这样：
BankAccount BankAccount
| |
SavingsAccount CheckingAccount
\ /
CheckingWithInterest
因此，每个CheckingWithInterest对象实际上都有两个 BankAccount基类子对象：一个来自SavingsAccount基类子对象，另一个来自CheckingAccount基类子对象。
因此，当您尝试在BankAccount对象上调用CheckingWithInterest成员函数时，例如，
CheckingWithInterest account;
account.enterAccountData();
编译器不知道您是enterAccountData()来自BankAccount基类的SavingsAccount还是enterAccountData()来自BankAccount 1}}是CheckingAccount基类的一部分。
我不确定您的要求是什么，但如果您只想拥有一个BankAccount基类子对象，则在导出CheckingAccount时可能需要使用虚拟继承。来自SavingsAccount的{{1}}，以便在BankAccount组成BankAccount子对象时，CheckingWithInterest子对象在他们之间共享：
class BankAccount
class SavingsAccount : public virtual BankAccount
class CheckingAccount : public virtual BankAccount
class CheckingWithInterest : public SavingsAccount, public CheckingAccount
如果你真的希望有两个BankAccount基类子对象，那么当你调用enterAccountData()时，你需要限定你想要调用成员函数的基类子对象：
account.CheckingAccount::enterAccountData();