求助怎么输出0.990000

#include <stdio.h>
int main() {
double eps, sum = 0.0;
int n = 1;
double term;
scanf("%lf", &eps);
do {
term = 1.0 / (n * (n + 1.0));
sum += term;
n++;
} while (term >= eps);
printf("%.6lf\n", sum);
return 0;
}

9

或者term初始化为0，把sum += term;语句放term求值的前边