摘要：
import java.util.Scanner;public class Ly { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("输入x1和y1: 阅读全文
摘要：
import java.util.Scanner; public class L { public static void main(String[] args) { long A ; a=123456789012345l; System.out.println(A); float B=2.4F; 阅读全文