目录使用构造方法使用 Java 8 的 Stream API附list转成set：（两种方法）总结将 Set 转为 List 可以有多种方法，以下是两种常见的实现方式：
This is very similar to a question I asked the other day but my page code has become significantly more complicated and I need to revisit it.I\'ve been using the following code:
加载中,请稍侯......