使用complex对象

#include<iostream>
#include<string>
#include<complex>

using namespace std;
void main()
{
   complex <int> num1(3, 4);
   complex <float> num2(3.3, 4.5);
   string str1("real is ");
   string str2 = "imag is ";
   cout << str1 << num1.real() << "," <<str2<< num1.imag() << endl;
   cout << str1 << num2.real() << "," <<str2<< num2.imag() << endl;
}

运行结果：