Unity3d---> IEnumerator

using UnityEngine;using System.Collections;public class Test : MonoBehaviour {IEnumerator Start () {yield return StartCoroutine(login());Debug.Log("CCCCCCCCCCCCC");Destroy(this.gameObject);}IEnumerator login () {Debug.Log("AAAAAAAAAAAAAAAAA");yield return new WaitForSeconds(0);Debug.Log("BBBBBBBBBBBBBBBBB");}}

------print--------

AAAAAAAAAAA

BBBBBBBBBBB

CCCCCCCCCCC

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using UnityEngine;using System.Collections;public class Test : MonoBehaviour {void Start () {StartCoroutine(login());Debug.Log("CCCCCCCCCCCCC");Destroy(this.gameObject);}IEnumerator login () {Debug.Log("AAAAAAAAAAAAAAAAA");yield return new WaitForSeconds(0);Debug.Log("BBBBBBBBBBBBBBBBB");}}

------print--------

AAAAAAAAAAA

CCCCCCCCCCC