fig01_14.cpp

来自「经典vc教程的例子程序」· C++ 代码 · 共 36 行

// Fig. 1.14: fig1_14.cpp
// Using if statements, relational
// operators, and equality operators
#include <iostream.h>

int main()
{
   int num1, num2;

   cout << "Enter two integers, and I will tell you\n"
        << "the relationships they satisfy: ";
   cin >> num1 >> num2;   // read two integers

   if ( num1 == num2 )
      cout << num1 << " is equal to " << num2 << endl;

   if ( num1 != num2 )
      cout << num1 << " is not equal to " << num2 << endl;

   if ( num1 < num2 )
      cout << num1 << " is less than " << num2 << endl;

   if ( num1 > num2 )
      cout << num1 << " is greater than " << num2 << endl;

   if ( num1 <= num2 )
      cout << num1 << " is less than or equal to "
           << num2 << endl;

   if ( num1 >= num2 )
      cout << num1 << " is greater than or equal to "
           << num2 << endl;

   return 0;   // indicate that program ended successfully
}