一个简单的数列求和问题

Question

c或者c++写出哦，我不会，我，今天晚上就要交了，麻烦会的给我说一下，谢谢啦

Answer 1

```c
#include <stdio.h>  
  
int main() {  
    int n;  
    double sum = 0.0;  
    double term = 0.0;  
    int i, k;  
  
    printf("请输入一个整数n(0<=n<=10)：");  
    scanf("%d", &n);  
  
    for (i = 1; term >= 1e-4; i++) {  
        term = 1.0 / ((i + n) * (i + n + 1) + n);  
        if (i % 2 == 0) {  
            sum += term;  
        } else {  
            sum -= term;  
        }  
    }  
  
    printf("级数和为：%.4f", sum);  
  
    return 0;  
}

```