实时获取显示FPS信息

using UnityEngine;
using UnityEngine.UI;
public class FpsToShow : MonoBehaviour
{
    private float fpsByDeltatime=1.5f;
    private float passedTime=0.0f;
    private int frameCount;
    private float realFPS=0.0f;
    void Update()
    {
        GetFPS();
    }
    private void GetFPS()
    {
        frameCount++;
        passedTime += Time.deltaTime;
        if (passedTime>=fpsByDeltatime)
        {
            realFPS = frameCount / passedTime;
            this.GetComponent<Text>().text = "FPS：" + string.Format("{0:F2}",realFPS);
            frameCount = 0;
            passedTime = 0.0f;
        }
    }
}