创建程序，使用C ++中的“ for”命令计算指数

Question

I tried to write a program to do the exponential calculation with the use of for command. I wrote the code which appears in the lines below but it's not working.

include <iostream>
using namespace std;
int main()
{
    int base=2;
    int exp=2;
    int result;
    for (int i=1; i<e ;i++) {
        result=base*base;
    }
    cout << result <<endl;
    return 0;
}

Answer 1

1. Initialize result to 1 .
2. In each iteration, multiply result by base .
3. Make sure result is the running result.

int result = 1;
// for (int i=1; i <= exp ; i++) // This will work too.
for (int i=0; i < exp ; i++)
{
   result *= base;
}

Answer 2

You never really explained what you wanted to happen or for the matter why, but hopefully this solves your problem.

#include<iostream>

using namespace std;

int main()
{

int base = 2;
int exp = 2;
int result = base*base;

for(int i = 0; i <= exp; i++) //Unsure why you use the variable exp in the condition
{
   cout << result << endl;
   base++ 
}

system("PAUSE"); //Non portable code; used just for an example

return 0;

}