．编写程序，接收键盘输入的二个浮点数保存到变量x、y中，计算并输出sinx、cosx、|x|、ex和xy 的值。
#include<stdio.h>
#include<math.h>
int main(){
double x,y;
scanf("%lf %lf",&x,&y);
printf("sin(x):%lf\n",sin(3.1415938*x/180));
printf("cos(x):%lf\n",cos(3.141593*x/180));
printf("|x|:%lf\n",fabs(x));
printf("e的x次方:%lf\n",exp(x));
printf("x的y次方:%lf\n",pow(x,y));
return 0;
}