自己实现pow()（指数函数）的并验证

Posted 2021-03-11 zyz322

#include "stdio.h"
double pow(double x,double y);
void main(void)
{
    
    double result;
    double x=2.0,y=3.0;
    result=pow(x,y);
    printf("%f的%f次方为%f",x,y,result);
    
}
double pow(double x,double y)
{
    
    double result=1;
    while(y)
    {
        result*=x;
        --y;
    }
    return result;

}