1、
#include <stdio.h>
int main(void) { printf("%f", pow(2,3)); return 0; }
↓
#include <stdio.h>
int main(void) { double i = 2, j = 4; printf("%f", pow(i,j)); return 0; }
↓
#include <stdio.h>
int main(void) { double i, j; puts("please input two numbers."); printf("i = "); scanf("%lf", &i); printf("j = "); scanf("%lf", &j); printf("%f", pow(i,j)); return 0; }
↓
#include <stdio.h> #include <math.h>
int main(void) { printf("%f", pow(3,3)); return 0; }