黄迪明3.8

/*编写一个程序计算
e^x=1+x+x^2/2!+x^3/3!+x^4/4!+…+x^n/n!*/

#include<stdio.h>
#include<stdlib.h>

int main()
 {
     double ex = 1, temp1 = 1, temp2 = 1, x;
     int n, i, j;

     printf("Please input x and n:");
     scanf("%lf %d", &x, &n);

     for (i = 1; i <= n; i++)
      { 
            for (j = 1; j <= i; j++)
             {
              temp1 = temp1*x;//计算分子
              temp2 = temp2*j;//计算分母
             }
            ex = ex + temp1 / temp2;
      }

     printf("%lf\n", ex);

     system("pause");
     return 0;
 }