cout_test

#include <iostream>
#include <complex>
using namespace std;
int main()
{
	cout<<'a'<<endl;
	cout<<"string:  str"<<endl;
	cout<<"*********************"<<endl;
	complex<float> a(3.14f, 4.12f);
	cout<<"a(3.14f, 4.12f) is    "<<a<<endl;
	complex<float> b(2.0f, 1.44f);
	cout<<"b(2.0f, 1.44f) is     "<<b<<endl;
	return 0;
}