Question

c++程序 使用系统函数pow()计算xy的值，注意包含头文件math.h

Answer 1

#include<iostream.h>
#include<math.h>
int main()
{
int x,y;
cout<<"请输入两个数用空格隔开"<<endl;
cin>>x>>y;
cout<<x<<"的"<<y<<"次方为："<<pow(x,y)<<endl;
return 0;
}

Answer 2

引用偶邵小帅的回答：
#include<iostream.h>
#include<math.h>
int main()
{
int x,y;
cout<<"请输入两个数用空格隔开"<<endl;
cin>>x>>y;
cout<<x<<"的"<<y<<"次方为："<<pow(x,y)<<endl;
return 0;
}

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
int x,y;
cout<<"请输入两个数用空格隔开"<<endl;
cin>>x>>y;
cout<<x<<"的"<<y<<"次方为："<<pow(x,y)<<endl;
return 0;
}

Answer 3

是的,或cmath