The java List is nested with Maps. The key values in each Map are the same, but the values are repeated, and the classification is performed, and finally the Map is output.

Enterprise 2023-04-09 09:58:16 views: null

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Origin blog.csdn.net/qq_45844443/article/details/127561851

The java List is nested with Maps. The key values in each Map are the same, but the values are repeated, and the classification is performed, and finally the Map is output.

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