#include <stdio.h>
    main() {                                     /* 主函數(shù)體 */
      int x, n, p, power(int x, int n);
      printf("caculate X to the power of N\n please input X and N ? ");
      scanf("%d%d",&x,&n);
      p = power(x,n);                            /* 在此處調(diào)用函數(shù) */
      printf("%d to the power of %d = %d\n",x,n,p);
      while(1);
    }

    int power(int x,int n)                /* 被調(diào)用函數(shù) */
    int x, n;
    {
      int i, p = 1;
      for( i=0; i<n; ++i ) p *= x;
      return( p );                        /* 帶值返回到調(diào)用處 */
    }