/// <summary>
 /// 失败购买虚方法
 /// </summary>
 /// <param name="pid">产品编号</param>
 /// <param name="tid">产品价格</param>
 /// <param name="errorType">错误类型</param>
 /// <param name="error">错误内容</param>
 public virtual void OnSKPruchaseFailed(string pid, string tid, SKErrorType errorType, string error)
 {
 }
 /// <summary>
 /// 失败购买虚方法
 /// </summary>
 /// <param name="pid">产品编号</param>
 /// <param name="tid">产品价格</param>
 /// <param name="errorType">错误类型</param>
 /// <param name="error">错误内容</param>
 virtual public void OnSKPruchaseFailed(string pid, string tid, SKErrorType errorType, string error)
 {
 }