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为一个场景对象添加上三个脚本,在场景开始运行时,脚本中的Start方法将会按照脚本添加的顺序来依次运行,而Update方法却是完全相反
比如:有A1、A2、A3三个脚本,它们的添加顺序是A1、A3、A2,那么在场景运行时,程序运行顺序是A1.Start()、A3.Start()、 A2.Start()、A2.Update()、A3.Update()、A1.Update()……,即使A1.Start()或A2.Update ()运算时间超过其它的方法,那么其它的方法也会等待其运行完成后才会开始运行之……
下面是三个脚本文件的例程:
jxxh01.cs
using UnityEngine;
using System.Collections;
public class jxxh01 : MonoBehaviour
{
// Use this for initialization
void Start()
{
for (int temp02 = 0; temp02 < 5; temp02++)
{
for (int temp01 = 0; temp01 < 5; temp01++)
{
int a01 = 0;
for (int temp = 0; temp < 50000; temp++)
{
a01++;
a = a01;
}
a01 = 0;
}
}
print(Time.time + " This is jxxh01 : " + a);
}
public int ForValue=10000;
int a = 0;
// Update is called once per frame
void Update () {
for (int temp = 0; temp < ForValue; temp++) { a = temp; }
print(Time.time + " This is jxxh01 : " + a);
}
}
jxxh02.cs
using UnityEngine;
using System.Collections;
public class jxxh02 : MonoBehaviour
{
// Use this for initialization
void Start()
{
for (int temp = 0; temp < 10000; temp++)
{
a++;
}
print(Time.time + " This is jxxh02 : " + a);
}
public int ForValue = 100;
int a = 0;
// Update is called once per frame
void Update () {
print(Time.time + " This is jxxh02 : " + a);
}
}
jxxh03.cs
using UnityEngine;
using System.Collections;
public class jxxh03 : MonoBehaviour
{
// Use this for initialization
void Start()
{
for (int temp = 0; temp < 10000; temp++)
{
a++;
}
print(Time.time + " This is jxxh03 : " + a);
}
public int ForValue = 100;
int a = 0;
// Update is called once per frame
void Update () {
print(Time.time + " This is jxxh03 : " + a);
}
} |
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