XinFeiTingZhen_Dog/Assets/_Scripts/Application/XinFeiTingZhen/Other/LineSegment.cs

using UnityEngine;
namespace YiLiao.XinFeiTingZhen 
{
    [ExecuteAlways]
    public class LineSegment : MonoBehaviour
    {
        public Transform start;
        public Transform end;
        LineRenderer line;

        void Start()
        {
            line = GetComponent<LineRenderer>();
        }
        void LateUpdate()
        {
            UpdateLine();
        }
        public void UpdateLine()
        {
            if (line != null)
            {
                line.SetPosition(0, start.position);
                line.SetPosition(1, end.position);
            }
        }
    }
}