WERTYU

 1 #include<iostream>
 2 using namespace std;
 3 const char s[] = { "`1234567890-=QWERTYUIOP[]\\ASDFGHJKL;‘ZXCVBNM,./" }; //注意转义字符
 4 int main() {
 5     int c, i;
 6     while ((c = getchar()) != EOF) {
 7         for (i = 1; s[i] && s[i] != c; i++);
 8         if (s[i]) putchar(s[i - 1]);
 9         else putchar(c);
10     }
11     return 0;
12 }