该帧开始的时间(只读)。此为自游戏启动以来的时间(以秒为单位)。
如果在单个帧中多次调用,将返回相同的值。从 MonoBehaviour 的 FixedUpdate 中调用时,返回 fixedTime 属性。请尽量避免定期(按帧)使用 Time.time。该值更倾向于提供游戏已经运行的时间,而不是每帧的时间。
注意:在所有 Awake 函数都完成之后,Time.time 便会立即启动。在 Awake 函数期间,将取消定义 time 值。
using UnityEngine; using System.Collections;
// Instantiates a projectile off every 0.5 seconds, // if the Fire1 button (default is ctrl) is pressed.
public class ExampleScript : MonoBehaviour { public GameObject projectile; public float fireRate = 0.5f; private float nextFire = 0.0f;
void Update() { if (Input.GetButton("Fire1") && Time.time > nextFire) { nextFire = Time.time + fireRate; GameObject clone = Instantiate(projectile, transform.position, transform.rotation) as GameObject; } } }
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.