Input.GetMouseButton 获取鼠标按钮

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	void Update() {
		if (Input.GetMouseButton(0))
			Debug.Log("Pressed left click.");

		if (Input.GetMouseButton(1))
			Debug.Log("Pressed right click.");

		if (Input.GetMouseButton(2))
			Debug.Log("Pressed middle click.");

	}
}

// Detects clicks from the mouse and prints a message
// depending on the click detected.
//检测到鼠标点击就输出信息
//取决于点击的键值

function Update() {
	if(Input.GetMouseButton(0))
		Debug.Log("Pressed left click.");
	if(Input.GetMouseButton(1))
		Debug.Log("Pressed right click.");
	if(Input.GetMouseButton(2))
		Debug.Log("Pressed middle click.");
}