List<String> .stream().
时间: 2024-03-12 18:15:03 浏览: 73
Java中 List《map》把里面map中某个key相同记录的其他key 的 value 合并
flatMap(List::stream)的作用是将一个List<String>中的每个元素映射为一个流,并将这些流合并成一个流。这样可以将一个嵌套的列表转换为一个平面的列表。\[2\]
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