Question

JavaScript => public var material: Material;
C# => public Materialmaterial;

Description 描述

Returns the first instantiated Material assigned to the renderer.
返回分配给渲染器的第一个材质。

Modifying material will change the material for this object only.
修改材质仅会改变该物体的材质。

If the material is used by any other renderers, this will clone the shared material and start using it from now on.
如果该材质被其他的渲染器使用，将克隆该材质并用于当前的渲染器。

Note: This function automatically instantiates the materials and makes them unique to this renderer. It is your responsibility to destroy the materials when the game object is being destroyed. Resources.UnloadUnusedAssets also destroys the materials but it is usually only called when loading a new level.

注意：
该功能自主地实例化该材质并且使其成为该渲染器独有的材质。当该游戏物体被删除时，删除该材质是你的责任。Resources.UnloadUnusedAssets也删除该材质但是仅当加载新的级别是调用。

JavaScript:

#pragma strict
// Change renderer's material each changeInterval
// seconds from the material array defined in the inspector.
public var materials: Material[];
public var changeInterval: float = 0.33F;
public var rend: Renderer;
function Start() {
	rend = GetComponent.<Renderer>();
	rend.enabled = true;
}
function Update() {
	if (materials.Length == 0)return ;
	// we want this material index now
	var index: int = Mathf.FloorToInt(Time.time / changeInterval);
	// take a modulo with materials count so that animation repeats
	index = index % materials.Length;
	// assign it to the renderer
	rend.sharedMaterial = materials[index];
}

C#:

using UnityEngine;
using System.Collections;
 
// Change renderer's material each changeInterval
// seconds from the material array defined in the inspector.
public class ExampleClass : MonoBehaviour {
    public Material[] materials;
    public float changeInterval = 0.33F;
    public Renderer rend;
 
    void Start() {
        rend = GetComponent<Renderer>();
        rend.enabled = true;
    }
 
    void Update() {
        if (materials.Length == 0)
            return;
 
        // we want this material index now
        int index = Mathf.FloorToInt(Time.time / changeInterval);
 
        // take a modulo with materials count so that animation repeats
        index = index % materials.Length;
 
		// assign it to the renderer
        rend.sharedMaterial = materials[index];
    }
}

renderer