【C语言】这个代码属实给我整不会了

Question

int main()
{
    char stra[] = { "abcdefghijklmnopqrstuvwxyz" };
    int n = 26;
    for (int i = 0; i < n; i++);
    {
        int k = i;  //但是在这块的i会报错  报错为i未定义
        for (int j = 0; j < n; ++j)
        {
            printf("%c", stra[k]);
            k = (k + 1) % n;
        }
        printf("\n");
    }
    printf("\n");
    return 0;
}

报错如下所示 为啥呀

Answer 1

for (int i = 0; i < n; i++);
删了末尾的分号