字符串——明文加密

Posted 2020-12-22 juanzhi

 

 

#include <string> 
#include <iostream> 

//循环加密
int main(){
    string str;
    //获取一行输入，getline(输入方式，存入哪里) 
    while(getline(cin,str)){
        //遇到特定输入，跳出循环 
        if(str == "END"){
            break; 
        } 
        getline(cin,str);
        for(int i = 0; i < str.size();i++){
            str[i] =(str[i] - ‘A‘ - 5 + 26) % 26 + ‘A‘;
        } 
        cout<<str<<endl;
        getline(cin,str);
    }
    
    return 0; 
}