Event.button 鼠标按钮

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	void OnGUI() {
		Event e = Event.current;
		if (e.button == 0 && e.isMouse)
			Debug.Log("Left Click");
		else
			if (e.button == 1)
				Debug.Log("Right Click");
			else
				if (e.button == 2)
					Debug.Log("Middle Click");
				else
					if (e.button > 2)
						Debug.Log("Another button in the mouse clicked");

	}
}

// Detect which mouse button is currently pressed and print it.
//检测当前按下的鼠标按钮并打印
function OnGUI() {
	var e : Event = Event.current;
	if(e.button == 0 && e.isMouse){
		Debug.Log("Left Click");
	} else if(e.button == 1) {
		Debug.Log("Right Click");
	} else if (e.button == 2) {
		Debug.Log("Middle Click");
	} else if (e.button > 2) {
		Debug.Log("Another button in the mouse clicked");
	}
}