我试着给一个动作添加函数，它们没有参数。我不明白为什么我不能添加函数。第一部分创建和调用动作。

using UnityEngine;
using System;

public class Player : MonoBehaviour
{
    [SerializeField] private int _health;

    private int _currentHealth;

    public event Action OnHitAction;

    public void TakeDamage(int damage)
    {
        _currentHealth -= damage;

        if (_currentHealth <= 0)
        {
            //Die?.Invoke();
        }
        else
        {
            OnHitAction?.Invoke();
        }
    }
}

第二个脚本将功能添加到动作中。

using UnityEngine;

public class PlayerAnimator : MonoBehaviour
{
    private Animator _animator;
    private PlayerMover _playerMover;

    private void Start()
    {
        Player player = new();
        player.OnHitAction += Hit();// Error is here
        _playerMover = GetComponent<PlayerMover>();
        _animator = GetComponent<Animator>();
    }
    private void Hit()
    {
        _animator.SetTrigger("Hit");
    }
}