在c环境下的对数据结构进行讲解,包含有例题及答案

				//arg.cpp
				// Illustrate the use of each of the complex friend functions.
				#include   // This also includes iostream.h.
				#include 
				void main(void)
				{
				   complex z(3.1, 4.2);
				   cout 				   cout 				   cout 				   cout 				
				   double mag = sqrt(norm(z));
				   double ang = arg(z);
				
				   cout 				   cout 				
				   cout 				   cout 				   cout 				   getch();
				}