java中Properties有什么用，举例说明

3.9 Properties的用法 

马克-to-win：Properties里面存着也是键值对，而且它更方便java对配置文件，字符串的操作，

例：3.9.1

import java.util.*;

public class TestMark_to_win {

    public static void main(String args[]) {

        Properties sala = new Properties();

        Set name;

        String str;

        sala.put("zs", "1111");

        sala.put("ls", "2222");

        sala.put("ww", "3333");

        sala.put("zl", "4444");

        // Show all name and sala in hashtable.

        name = sala.keySet(); // get set-view of keys

        Iterator itr = name.iterator();

        while (itr.hasNext()) {

            str = (String) itr.next();

            System.out.println("The sala of " +

            /* public String getProperty(String key)Searches for the property

             * with the specified key in this property list.*/

            str + " is " + sala.getProperty(str) + ".");

更多请见：https://blog.csdn.net/qq_44639795/article/details/103087533