覆盖基类中的公有方法需要用new

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


public class TT2 : MonoBehaviour
{
    public int prin() { return 1; }
    private void pri() { }
}


public class TTTT : TT2
{
    public new  int  prin()
    {
        return 1;
    }
    private void pri() { }
}