U3d:关于对方法的链式扩展

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

public class Test7 : MonoBehaviour
{

    public GameObject go;
    // Start is called before the first frame update
    void Start()
    {
        go.Show()
            .Hide()
            .Name("aa");


    }

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


public static class GameObjectExtension
{
    public static GameObject Show(this GameObject selfObject)
    {
        selfObject.SetActive(true);
        return selfObject;
    }

    public static GameObject Hide(this GameObject selfObject)
    {
        selfObject.SetActive(false);
        return selfObject;
    }

    public static GameObject Name(this GameObject selfObject, string str)
    {
        selfObject.name = str;
        return selfObject;
    }

}

扩展方法被定义为静态方法，但它们是通过实例方法语法进行调用的。它们的第一个参数指定该方法作用于哪个类型，并且该参数以 this 修饰符为前缀。仅当您使用 using 指令将命名空间显式导入到源代码中之后，扩展方法才位于范围中。