ex1703.cpp

teach yourself C++ in 21 days 第五版

// Ex1703.cpp
#include <iostream>
using namespace std;
  
int main()
{
      char ch;
      cout << "enter a phrase: ";
      while ( cin.get(ch) )
      {
         switch (ch)
         {
           case '!':
              cout << '$';
              break;
           case '#':
              break;
           default:
              cout << ch;
              break;
         }
      }
      return 0;
}