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

public class OneRename : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    //用ContextMenu特性标注public方法，就可以在编辑器模式下右键运行测试
    [ContextMenu("ReName")]
    public void RenameGameobject() 
    {
        var ryunmList = this.GetComponentsInChildren<Transform>();
        int num = 0;
        int index=1;
        foreach (var item in ryunmList)
        {
            if (item.name== "HeRoot") {
                continue;
            }
            if (item.name== "XF_DangAnHe_50mm100") {
                num = 1;
                continue;
            }
            if (num==1) {

                var name = item.name.Replace("Right_5", "Right_6");
                item.name = name;
                //item.name = item.name.Replace(" (1)", "");
                //if (item.name.Contains("("))
                //{
                //    item.name = item.name.Replace("Right_5", "Right_6");
                //    item.name = item.name.Replace(" (1)", "");
                //}
                //var name1 = "Right_1_1_" + index;
                //var name2 = "Right_1_1_" + (100 - (index - 1));
                //item.name = item.name.Replace(name1, name2);
                //index++;
            }
           
            //item.name = "One" + num.ToString() ; 
            //num++;
            //return;
        }
    }


}

将此文件附加到模型上，然后右键执行，运行逻辑可以根据自己的需求更改。