整不会了，整不会了，快来看看

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main()
{
int i,n;
double x, zi, mu=1, t, sum=1;
printf("请输入x和n的值：");
scanf("%lf,%d", &x, &n);
for (i = 1; i <= n; i++)
{
zi = pow(x, i);
t = zi / mu;
sum = sum + t;
mu = mu * (i + 1);
}
printf("sum=%f", sum);
return 0;
}

#include <stdio.h>

int main()
{
int p = 0;
int n;
double sum,xs,xx,x; //xs分子x的平方 xx分母n的阶层
printf("please input n\n");
scanf("%d %lg",&n,&x);//键盘输入数据
xs = x;
xx = 1;
sum = 1 + x;
for(p=2;p<=n;p++)
{
xs = xs * x;
xx = xx * p;
sum = sum + xs / xx;
}
printf("sum = %f\n",sum);

return 0;

}
仅供参考

供参考：

#include<stdio.h>
int main()
{
    int i,n;
    double x,zi,mu,t,sum;
    printf("请输入x和n的值:");
    scanf("%lf%d",&x,&n);
    for(i=1,sum=1,zi=1,mu=1;i<=n;i++)
    {
        zi *= x;
        mu *= i;
        t = zi/mu;
        sum += t;
    }
    printf("sum = %f",sum);

    return 0;
}