unity锁定鼠标光标

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

public class CursorLock: MonoBehaviour
{
    

    bool HideCursor = true

    void Update()
    {
        KeepCursorCenter();
    }

    private void KeepCursorCenter()
    {
      if(input.GetKeyDown(KeyCode.Escape))
      {
       HideCursor =！HideCursor;
      }
      if(HideCursor=ture)
      {
       //锁定时，光标位于视图的中心且无法移动。
       Cursor.lockState = CursorLockMode.Locked;
      }
       else
      {
       Cursor.lockState = CursorLockMode.None;
      }
    }
}