#include <iostream>
using namespace std;int main()
{//1.定义变量double e = 1.0f;double factorial = 1.0f;int n = 0;//2.输入数据cin >> n;for(int i = 1; i <= n; i++){factorial = factorial * i;e += 1.0 / factorial;}printf("%.10lf",e);return 0;
}
附 在vs2010运行c程序时,控制台一闪而过怎么解决