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- qzjhjxj 2021-11-25 09:20关注
供参考:
#include<stdio.h> int main() { char a[256]; int i = 0; while ((a[i] = getchar()) && a[i] != '\n') { if (a[i] >= 'A' && a[i] <= 'Z') a[i] = (a[i] - 'A' + 3) % 26 + 'A'; else if (a[i] >= 'a' && a[i] <= 'z') a[i] = (a[i] - 'a' + 3) % 26 + 'a'; i++; } a[i] = '\0'; printf("%s\n", a); return 0; }
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