问题描述:分别使用结构和类编程实现复数加减法
/*使用复数结构,编写通用函数求两个复数的和和积*/
struct complex
{
int real;
int im;
};
struct complex cadd(struct complex c1,struct complex c2);
struct complex cadd(struct complex c1,struct complex c2)
//现在cadd是一个返回类型是struct complex的函数
{
struct complex result;
result.real=c1.real+c2.real;
result.im=c1.im+c2.im;
return result;
}
struct complex cmult(struct complex c1, struct complex c2);
struct complex cmult(struct complex c1, struct complex c2)
{
struct complex result;
result.real = c1.real*c2.real - c1.im*c2.im;
result.im = c1.real*c2.im + c1.im*c2.real;
return result;
}
//编写结果输出函数
void puts(struct complex c);
void puts(struct complex c)
{
cout<
>c1.real&&cin>>c1.im&&cin>>c2.real&&cin>>c2.im)
{
c3=cadd(c1,c2);
puts(c3);
c3=cmult(c1,c2);
puts(c3);
}
cin.get();
}
/*用类来实现复数的加法和乘法*/
class complex
{
public:
int real;
int im;
// complex(int m=0,int n=0);
void set_c(int m,int n);
void cadd(complex c1, complex c2);
void cmult(complex c1,complex c2);
void put();
};
//complex::complex(int m,int n)
//{
// real = m;
// im = n;
//}
void complex::set_c(int m, int n)
{
real = m;
im = n;
}
void complex::cadd(complex c1, complex c2)
{
real = c1.real + c2.real;
im = c1.im + c2.im;
}
void complex::cmult(complex c1,complex c2)
{
real = c1.real*c2.real - c1.im*c2.im;
im = c1.real *c2.im + c2.real*c1.im;
}
void complex::put()
{
cout<
>r1 && cin>>i1 &&cin>>r2 &&cin>>i2)
{
c1.set_c(r1,i1);
c1.put();
c2.set_c(r2,i2);
c2.put();
c3.cadd(c1,c2);
c3.put();
c3.cmult(c1,c2);
c3.put();
}
cin.get();
}