xt4-15.cpp

来自「清华大学 C＋＋面向对象程序设计 谭浩强主编 一书的源码」· C++ 代码 · 共 27 行

#include <iostream>
using namespace std;
#define CHANGE 1
int main()
{char ch[40];
 cout<<"input text:"<<endl;;
 gets(ch);
 #if (CHANGE)
   {for (int i=0;i<40;i++)
     {if (ch[i]!='\0')
       if (ch[i]>='a'&& ch[i]<'z'||ch[i]>'A'&& ch[i]<'Z')
          ch[i]+=1;
       else if (ch[i]=='z'||ch[i]=='Z')
          ch[i]-=25;
    }
   }
 #endif
 cout<<"output:"<<endl<<ch<<endl;
 return 0;
}