请点击这里购买继续学习！ 请点击这里购买继续学习！ [err01_错误代码-2147012796_描述在 Open 方法被调用之前不能调用此方法 -http://vod.cn-shanghai.aliyuncs.com?AccessKeyId=LTAI5tGgt2rwsmnbKW3udECw&Action=GetVideoPlayAuth&Format=xml&SignatureMethod=HMAC-SHA1&SignatureNonce=93C4EA6B32364617B370714B8272379A&SignatureVersion=2.0&Version=2017-03-21&VideoId=1a163e8a70b74b5aa7b71ae38032a588&timeStamp=2025-10-19T21%3A32%3A37Z&Signature=eOwxjbsS1%2BpaHfv%2F5aNL0sEzwok%3D|]