breaker.cpp

来自「《24学时精通c++》的光盘内容」· C++ 代码 · 共 48 行

 // Listing 6.3
 // Demonstrates break and continue
 #include <iostream>
 using namespace std;// this file uses std::cout,
                     // std::cin, std::endl, etc.

 int main()
 {
     unsigned short small;
     unsigned long  large;
     unsigned long  skip;
     unsigned long target;
     const unsigned short MAXSMALL=65535;

     cout << "Enter a small number: ";
     cin >> small;
     cout << "Enter a large number: ";
     cin >> large;
     cout << "Enter a skip number: ";
     cin >> skip;
     cout << "Enter a target number: ";
     cin >> target;

     cout << "\n";

     // set up 3 stop conditions for the loop
     while (small < large && large > 0 && small < MAXSMALL)
     {
         small++;

         if (small % skip == 0)// skip the decrement?
         {
             cout << "skipping on " << small << endl;
             continue;
         }

         if (large == target)  // exact match for the target?
         {
             cout << "Target reached!";
             break;
         }

         large-=2;
     }                         // end of while loop

     cout << "\nSmall: " << small << " Large: " << large << endl;
     return 0;
 }