#include<stdio.h>

#define N 10

int main(void)
{
                float jieguo = 0;
        int fm;

        for (fm = 1; fm <= N; fm++)
        {
                jieguo += 1.0 / fm;  \\\此处1.0改为1就无法运行正确结果，求解释
        }
        printf("%8.6f\n", jieguo);

    return 0;
}