夫夷以近,则游者众,险以远,则至者少

Utils package org.wp.utils; public class Utils { public static void main(String args[]) { int num = ipToInt("192.168.100.203"); System.out.println(intToIp(num)); } /** * 通过左移位操...

  import java.util.HashMap; import java.util.Iterator; import java.util.Map; public class MapTest { public static void main(String args[]) { Map<Integer, String> map = new HashMap<...