字符串加解密

while True:
    try:
        a=input()
        b=input()
        a_=''
        b_=''
        for i in a:
            if i.isdigit():
                if i!='9':
                    a_+=str(int(i)+1)
                else:
                    a_+='0'
            if i.islower():
                if i!='z':
                    a_+=chr(ord(i)+1).upper()
                else:
                    a_+='A'
            if i.isupper():
                if i!='Z':
                    a_+=chr(ord(i)+1).lower()
                else:
                    a_+='a'
                    
        for i in b:
            if i.isdigit():
                if i!='0':
                    b_+=str(int(i)-1)
                else:
                    b_+='9'
            if i.islower():
                if i!='a':
                    b_+=chr(ord(i)-1).upper()
                else:
                    b_+='Z'
            if i.isupper():
                if i!='A':
                    b_+=chr(ord(i)-1).lower()
                else:
                    b_+='z'
        print(a_)
        print(b_)
    except:
        break

#include <iostream>
#include <string>
using namespace std;
void Encrypt (char aucPassword[], char aucResult[]){
    int i;
    for(i=0;aucPassword[i]!=0;i++){
        if(aucPassword[i]>='0' && aucPassword[i]<='9'){
            if(aucPassword[i]!='9')
                aucResult[i]=aucPassword[i]+1;
            else aucResult[i]='0';
        }
        else if(aucPassword[i]>='a' && aucPassword[i]<='z'){//注意else if的else不能省略
            if(aucPassword[i]!='z')
                aucResult[i]=aucPassword[i]+1-32;
            else aucResult[i]='A';
        }
        else if(aucPassword[i]>='A' && aucPassword[i]<='Z'){
            if(aucPassword[i]!='Z')
                aucResult[i]=aucPassword[i]+1+32;
            else aucResult[i]='a';
        }
        else aucResult[i]=aucPassword[i];
    }
    aucResult[i]=0;
    cout << aucResult << endl;
}
int unEncrypt (char result[], char password[]){
    int i;
    for(i=0;result[i]!=0;i++){
        if(result[i]>='0' && result[i]<='9'){
            if(result[i]!='0')
                password[i]=result[i]-1;
            else password[i]='9';
        }
        else if(result[i]>='a' && result[i]<='z'){
            if(result[i]!='a')
                password[i]=result[i]-1-32;
            else password[i]='Z';
        }
        else if(result[i]>='A' && result[i]<='Z'){
            if(result[i]!='A')
                password[i]=result[i]-1+32;
            else password[i]='z';
        }
        else password[i]=result[i];
    }
    password[i]=0;
    cout << password << endl;
    return 0;
}
int main(){
    char s1[100];
    char s2[100];
    char s3[100];
    char s4[100];
     
    /*while(cin.getline(s1,100))
    {
        cin.getline(s3,100);
         
        Encrypt(s1,s2);
         
        unEncrypt(s3,s4);
    }*/
    char aucPassword[100];
    while (cin >> aucPassword){
        char aucResult[100],result[100],password[100];
        Encrypt (aucPassword, aucResult);
        cin >> result;
        int res=unEncrypt (result, password);
    }
    return 0;
}