ex3_14.cpp

来自「Visual C++ 2005的源代码」· C++ 代码 · 共 39 行

// Ex3_14.cpp
// Using nested loops to generate a multiplication table
#include <iostream>
#include <iomanip>

using std::cout;
using std::endl;
using std::setw;

int main()
{
   const int size = 12;              // Size of table
   int i = 0, j = 0;                 // Loop counters

   cout << endl                        // Output table title
        << size << " by " << size
        << " Multiplication Table" << endl << endl;

   cout << endl << "    |";
   for(i = 1; i <= size; i++)          // Loop to output column headings
      cout << setw(3) << i << "  ";      

   cout << endl;                       // Newline for underlines
   for(i = 0; i <= size; i++)
      cout << "_____";                 // Underline each heading

   for(i = 1; i <= size; i++)          // Outer loop for rows
   {
      cout << endl
           << setw(3) << i << " |";    // Output row label

      for(j = 1; j <= size; j++)           // Inner loop for the rest of the row
         cout << setw(3) << i*j << "  ";   // End of inner loop

   }                                   // End of outer loop
   cout << endl;
   return 0;
}