摘要： 1 import java.util.Scanner; 2 public class Test30009{ 3 public static void main(String args[]){ 4 int repeat, ri; 5 int a,b,c,d; 6 double x1,x2; 7 Scanner in=new Scanner(System.in); 8 repeat=in.nextInt(); 9 for(ri = 1; ri <= repeat; ri++){1... 阅读全文