Merge branch 'wxr4' into temp-wxr

wxr

2021-06-06 d7e25d6a5960b3495cd4d8a67545410e03ca7962

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using System;
using System.Collections.Generic;
 
namespace HDL_ON.Entity
{
    public class Fan
    {
        public Fan()
        {
        }
 
 
    }
}