68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
//有复数类Complex，利用运算符重载实现复数的加、减、乘、除等复数运算。
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#include<iostream>
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using namespace std;
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class Complex {
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private:
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double r,i;
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public:
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Complex(double R=0,double I=0):r(R),i(I){};
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Complex operator+(Complex b);
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Complex operator-(Complex b);
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Complex operator*(Complex b);
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Complex operator/(Complex b);
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void display();
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};
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Complex Complex::operator +(Complex b)
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{
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return Complex(r+b.r,i+b.i);
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}
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Complex Complex::operator -(Complex b)
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{
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return Complex(r-b.r,i-b.i);
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}
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//求复数相乘的算法
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Complex Complex::operator *(Complex b)
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{
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Complex t;
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t.r=r*b.r-i*b.i;
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t.i=r*b.i+i*b.r;
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return t;
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}
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//求复数相除的算法
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Complex Complex::operator /(Complex b) {
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Complex t;
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double x;
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x=1/(b.r*b.r+b.i*b.i);
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t.r=x*(r*b.r+i*b.i);
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t.i=x*(i*b.r-r*b.i);
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return t;
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}
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void Complex::display(){
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cout<<r;
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if (i>0) cout<<"+";
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if (i!=0) cout<<i<<"i"<<endl;
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//}display();
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};
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int main(void) {
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Complex c1(1,2),c2(3,4),c3,c4,c5,c6;
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Complex a,b(2,3);
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a=b+2; //正确
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// a=2+b; //错误
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a.display();
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c3=c1+c2;
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c4=c1-c2;
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c5=c1*c2;
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c6=c1/c2;
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c1.display();
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c2.display();
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c3.display();
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c4.display();
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c5.display();
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c6.display();
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system("pause");
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return 0;
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}
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