c.cpp

凯撒密码 古典密码学中的凯撒密码....VC++版

#include<iostream>
#include<string>
using namespace std;

void main()
{ 
 string word;
 cin>>word;
 for(int i=0;i<word.size();++i)
	if(word[i]<'x')
		word[i]+=3;
	else word[i]-=23;	 
 cout<<word<<endl;
 }