LOAN面向对向类程序

面向对象类的一个列子 Loan::Loan(double r,int y,double a){ annualInterestRate=r; numberOfYears=y; loanAmount=a; } Loan::Loan(const Loan& loan){ annualInterestRate = loan.annualInterestRate; numberOfYears = loan.numberOfYears; loanAmount = loan.loanAmount; } double Loan::getAnnualInteres