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and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
参考如下示例代码（以下加粗内容需要替换为实例自有信息，请根据实际情况替换）。 package main import ( "context" "fmt" "os" "strconv" "github.com/apache/rocketmq-client-go/v2" "github.com
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
Endpoint = "192.168.xx.xx:8080" AccessKey = os.Getenv("ACL_ACCESS_KEY") SecretKey = os.Getenv("ACL_SECRET_KEY") ) //ACL_ACCESS_KEY为用户
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
时请注意。 Token认证 Token的有效期为24小时，需要使用一个Token鉴权时，可以先缓存起来，避免频繁调用。 Token在计算机系统中代表令牌（临时）的意思，拥有Token就代表拥有某种权限。Token认证就是在调用API的时候将Token加到请求消息头，从而通过身份认
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}"
and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] credentials = BasicCredentials(ak
务单元的消息，可以根据不同业务目的在同一Topic下设置不同的标签。标签能够有效保持代码的清晰度和连贯性，并优化RocketMQ提供的查询系统。消费者可以根据Tag实现对不同Topic的不同消费逻辑，实现更好的扩展性。 Topic是消息的一级分类，Tag是消息的二级分类，关系如下图。
客户端连接RocketMQ实例5.x版本收发事务消息前，需要确保Topic的消息类型为“事务”。 RocketMQ TCP协议的Python SDK只支持Linux系统。 发送事务消息 参考如下示例代码（以下加粗内容需要替换为实例自有信息，请根据实际情况替换）。 import time from rocketmq
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