如下：

using UnityEngine;using System.Collections;public class ShowFpsOnGUI : MonoBehaviour{    public float fpsMeasuringDelta = 2.0f;    public int TargetFrame = 30;    private float timePassed;    private int m_FrameCount = 0;    private float m_FPS = 0.0f;    private void Start()    {        timePassed = 0.0f;        Application.targetFrameRate = TargetFrame;    }    private void Update()    {        m_FrameCount = m_FrameCount + 1;        timePassed = timePassed + Time.deltaTime;        if (timePassed > fpsMeasuringDelta)        {            m_FPS = m_FrameCount / timePassed;            timePassed = 0.0f;            m_FrameCount = 0;        }    }    private void OnGUI()    {        GUIStyle bb = new GUIStyle();        bb.normal.background = null;        bb.normal.textColor = new Color(1.0f, 0.5f, 0.0f);        bb.fontSize = 32;        //居中显示FPS        GUI.Label(new Rect(0, 0, 200, 200), "FPS: " + m_FPS, bb);    }}

转载请注明出处：

效果如下：