Unity3d中Dictionary和KeyValuePair的使用

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class test : MonoBehaviour {

    void Start () {
        Dictionary<int,object> dict = new Dictionary<int,object> ();
        dict.Add (0,new Vector2(0,0));
        dict.Add (1,new Vector2(1,1));
        dict.Add (2,new Vector3(2,2));
        dict.Add (3,"abcd");
        foreach (KeyValuePair<int,object> pair in dict) {
            Debug.Log (pair.Key+", "+pair.Value);
        }
        //0, (0.0, 0.0)
        //1, (1.0, 1.0)
        //2, (2.0, 2.0, 0.0)
        //3, abcd
    }

}