输入一个正整数repeat(0

 

代码：

import java.util.*;  2 public class Main {  3     public static void main (String [] args) {  4         int repeat,n;  5         double x;  6         Scanner s=new Scanner(System.in);  7         repeat=s.nextInt();  8         for(int i=1;i<=repeat;i++) {  9             x=s.nextDouble(); 10             n=s.nextInt(); 11             double pow=Math.pow(x,n); 12             System.out.println(String.format("%.2f", pow)); 13  } 14  } 15 }