fig21_22.cpp

是有关C++编程原理教程的例子程序,全,应该对大家有所帮助

// Fig. 21.22: Fig21_22.cpp
// Tree class test program.
#include <iostream>
using std::cout;
using std::cin;
using std::fixed;

#include <iomanip>
using std::setprecision;

#include "Tree.h" // Tree class definition

int main()
{
   Tree< int > intTree; // create Tree of int values
   int intValue;

   cout << "Enter 10 integer values:\n";

   // insert 10 integers to intTree
   for ( int i = 0; i < 10; i++ ) 
   {
      cin >> intValue;
      intTree.insertNode( intValue );
   } // end for

   cout << "\nPreorder traversal\n";
   intTree.preOrderTraversal();

   cout << "\nInorder traversal\n";
   intTree.inOrderTraversal();

   cout << "\nPostorder traversal\n";
   intTree.postOrderTraversal();

   Tree< double > doubleTree; // create Tree of double values
   double doubleValue;

   cout << fixed << setprecision( 1 )
      << "\n\n\nEnter 10 double values:\n";

   // insert 10 doubles to doubleTree
   for ( int j = 0; j < 10; j++ ) 
   {
      cin >> doubleValue;
      doubleTree.insertNode( doubleValue );
   } // end for

   cout << "\nPreorder traversal\n";
   doubleTree.preOrderTraversal();

   cout << "\nInorder traversal\n";
   doubleTree.inOrderTraversal();

   cout << "\nPostorder traversal\n";
   doubleTree.postOrderTraversal();

   cout << endl;
   return 0;
} // end main

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