fig26_18.cpp

C程序设计经典教程第5版程序示例,比较适合初级c语言的学生

// Fig. 26.18: Fig26_18.cpp 
// Displaying floating-point values in system default,
// scientific and fixed formats.
#include <iostream>
using std::cout;
using std::endl;
using std::fixed;
using std::scientific;

int main()
{
   double x = 0.001234567;
   double y = 1.946e9;

   // display x and y in default format
   cout << "Displayed in default format:" << endl
      << x << '\t' << y << endl;

   // display x and y in scientific format
   cout << "\nDisplayed in scientific format:" << endl
      << scientific << x << '\t' << y << endl;

   // display x and y in fixed format
   cout << "\nDisplayed in fixed format:" << endl
      << fixed << x << '\t' << y << endl;
   return 0;
} // end main

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