Question

unity3D 中，要实时更改GUI.Box 的宽度应该怎么做？设定了一个参数，参数在UPDate里是变化的，宽度没变

Answer 1

using UnityEngine;
using System.Collections;

public class BoxWidth : MonoBehaviour
{

private float _width = 100.0f;

// Use this for initialization
IEnumerator Start()
{
while (true)
{
yield return new WaitForSeconds(1);
_width = 100*Random.Range(1.0f, 2.0f);
}
}

// Update is called once per frame
void Update()
{
//_width = 100 * Random.Range(1.0f, 2.0f);//很快
}

void OnGUI()
{
GUI.Box(new Rect(100, 100, _width, 100), "Box Box Box");
}
}

Answer 2

参数要在类里申明为类变量吧，不 要 在方法体内申明，看helpmeps的 是列
public class BoxWidth : MonoBehaviour
{

private float _width = 100.0f;