weixin_38441551的博客

需要了解的网址：https://blog.youkuaiyun.com/qq_28410283/article/details/80634725https://blog.youkuaiyun.com/qq_28410283/article/details/80783505

List<String> ids = new ArrayList<>(); List<BudContentBillVo> duplicateList = billList.stream().filter(// 过滤去重 v -> { boolean flag = !ids.contains(v...

package com.pty.pex.common.util;import java.util.List;import java.util.Map;import java.util.concurrent.ConcurrentHashMap;import java.util.function.Function;import java.util.function.Predicate;i...