帮忙看一下为什么这个函数没有输出？

[Impr]

#include <iostream.h>
class Rmb
{
public:
Rmb(double d)
{
yuan=d;
jf=(d-yuan)/100;
}

Rmb interest(double rate);
Rmb add(Rmb d);
void display()
{
cout<<yuan+jf/100.0<<endl;
}

Rmb operator +(Rmb d)
{
return Rmb(yuan+d.yuan+(jf+d.jf)/100);
}

Rmb operator *(double rate)
{
return Rmb(yuan+jf/100)*rate;
}

private:
unsigned int yuan;
unsigned int jf;
};

Rmb Rmb::interest(double rate)
{
return Rmb(yuan+jf/100.0)*rate;
}

Rmb Rmb::add(Rmb d)
{
return Rmb(yuan+d.yuan+jf/100.0+d.jf/100.0);
}

Rmb expense1(Rmb principle,double rate)
{
Rmb interest=principle.interest(rate);
return principle.add(interest);
}

Rmb expense2(Rmb principle,double rate)
{
Rmb interest=principle*rate;
return principle+interest;
}

int main()
{
Rmb x=10000.0;
double yrate=0.035;
expense1(x,yrate).display();
expense2(x,yrate).display();
return 0;
}

[21011111111]

expense1(x,yrate).display();
expense2(x,yrate).display();

分开写试试，不要连着写

[無_1024]

重载乘法递归可能死循环

[無_1024]

#include <iostream>
using namespace std;
class Rmb
{
public:
	explicit Rmb(double d)
	{
		yuan=d;
		jf=(d-yuan)/100;
	}

	Rmb interest(double rate);
	Rmb add(Rmb d);
	void display()
	{
		cout<<yuan+jf/100.0<<endl;
	}

	Rmb operator +(Rmb d)
	{
		return Rmb(yuan+d.yuan+(jf+d.jf)/100);
	}

	Rmb operator *(double rate)
	{
		return Rmb((yuan+jf/100)*rate);
	}

private:
	double yuan;
	double jf;
};

Rmb Rmb::interest(double rate)
{
	return Rmb((yuan+jf/100.0)*rate);
}

Rmb Rmb::add(Rmb d)
{
	return Rmb(yuan+d.yuan+jf/100.0+d.jf/100.0);
}

Rmb expense1(Rmb principle,double rate)
{
	Rmb interest=principle.interest(rate);
	return principle.add(interest);
}

Rmb expense2(Rmb principle,double rate)
{
	Rmb interest=principle*rate;
	return principle+interest;
}

int main()
{
	Rmb x(10000.0);
	double yrate=0.035;
	(expense1(x,yrate)).display();
	(expense2(x,yrate)).display();
	return 0;
}

[xjh2011xjh]

请问您这段代码的目的是什么？我首先得知道您要这段代码的目的才行！

[xjh2011xjh]

你看看这个重载函数：

是否该该这样写。

[xjh2011xjh]

您看看重载函数" operator *"是不是该这样写：

Rmb operator *(double rate)
{
return Rmb((yuan+jf/100)*rate);
}

与您原来的函数相比就是多加了一对括号，这应该是重载函数的格式吧！

[luminos]

你的重载*算法出错了，return 里写的是return Rmb(yuan+jf/100)*rate;
这里你让一个double型跟一个Rmb型进行相乘，乘了之后还要返回一个Rmb型的东西。重载不会成功的。

[zhao1zhong6]

operator =

[Impr]

谢谢大家了

[Impr]

计算利息加本金