private bool IsExitPhoneNumber(string phone)
{

    bool isExit = false;
    AVQuery<AVObject> query = new AVQuery<AVObject>("UserInfo");
    query = query.WhereEqualTo("phone", phone);      
    query.FindAsync().ContinueWith(t =>

    {
        if (t.IsCanceled)
        {
            //保存因为某些原因取消了
        }
        else if (t.IsFaulted)
        {
            //有异常,获取出来以便处理
            AggregateException exception = t.Exception;
        }
        else
        {
           
            //成功了
        var user = t.Result;
        IEnumerator<AVObject> enumerator = user.GetEnumerator();
        Debug.Log(enumerator.ToString());
        if (enumerator.MoveNext())
        {
            var usertemp = enumerator.Current;
            Debug.Log(usertemp.ToString());
            Debug.Log(usertemp.Get<string>("password"));
            isExit = true;
        }
        }
        
    });
    
    return isExit;
}

调用这个函数的时候，query.FindAsync().不会马上执行，所以我每次判断都会返回false，请问这个如何解决啊，急求！！