用c语言求e的值,c++求e的值

#include<stdio.h>int main(){double sum,p,i,t,n;p=1;sum=0;for(i=1;i<=10;i++){p=p*i;t=p; //*把p的值赋给t后进行运算 sum=sum+1/t;}printf("%.10fn",sum+1);return 0;}