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

doum

2025-11-26 5e6da22fb6f3b65e4dbf83896ad2a05d6d971432

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