1014
#include<stdio.h>
#include<string.h>
int main() {
char a[100];
gets(a);
for(int i = 0; a[i] != '\0'; i++) //只要不是空字符就一直加 等效于for(int i=0;i<strlen(s);i++)
{
if(a[i] >= 'a' && a[i] <= 'z' || a[i] >= 'A' && a[i] <= 'Z') {
a[i] += 3;
if(a[i] > 'z' || a[i] > 'Z' && a[i] < 'a')
a[i] -= 26;
}
}
puts(a);
return 0;
}
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为什么要减26，这啥意思啊