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

MrShi

2026-05-29 db0a46d56078b2122083052da0cb9de513a076be

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