例题3-2

                          

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

int main()
{
    char s[]="`1234567890-=QWERTYUIOP[]\\ASDFGHJKL;'ZXCVBNM,./";
    char c;
    int i;
    while((c=getchar())!=EOF){
        for(i=1;s[i]&&s[i]!=c;i++);
        if(s[i])cout<<s[i-1];
        else cout<<c;
    }
    return 0;
}

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

int main()
{
    char s[]="`1234567890-=QWERTYUIOP[]\\ASDFGHJKL;'ZXCVBNM,./";
    char c;
    while((c=getchar())!=EOF){
        int len=strlen(s),i;
        for(i=0;i<len;i++){
            if(c==s[i]){
                printf("%c",s[i-1]);break;
            }
        }
        if(i==len)printf("%c",c);
    }
    return 0;
}