GameObject.tag

描述

The tag of this GameObject.

A tag can be used to identify a GameObject. Tags must be declared in the Tags and Layers manager before using them.

**注意：**您不应通过 Awake() 或 OnValidate() 方法设置标签。这是因为组件唤醒的顺序是不确定的，因此可能导致意外行为，例如标签在唤醒时被覆盖。如果尝试执行此操作，Unity 将生成一条警告：“SendMessage cannot be called during Awake, CheckConsistency, or OnValidate”。

另请参阅 GameObject.CompareTag。

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        //Set the tag of this GameObject to Player
        gameObject.tag = "Player";
    }

    private void OnTriggerEnter(Collider other)
    {
        //Check to see if the tag on the collider is equal to Enemy
        if (other.tag == "Enemy")
        {
            Debug.Log("Triggered by Enemy");
        }
    }
}