Merge remote-tracking branch 'origin/wuhuyancao' into wuhuyancao

rk

2025-11-10 09f0061cb76cbfc7a4798226c86f43b3d8744f3d

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package com.doumee;
 
public class Main {
    public static void main(String[] args) {
        System.out.println("Hello world!");
    }
}