MonoBehaviour.useGUILayout

Description

禁用该属性可跳过 GUI 布局阶段。

It can only be used if you do not use GUI.Window and GUILayout inside of this OnGUI call.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public void Start()
    {
        //Disabling this lets you skip the GUI layout phase.
        useGUILayout = false;
    }
}