try
{
  // Bucket name in the format of bucketname-APPID. You can get APPID by referring to https://console.tencentcloud.com/developer.
  string bucket = "examplebucket-1250000000";
  PutBucketTaggingRequest request = new PutBucketTaggingRequest(bucket);
  string akey = "aTagKey";
  string avalue = "aTagValue";
  string bkey = "bTagKey";
  string bvalue = "bTagValue";

  request.AddTag(akey, avalue);
  request.AddTag(bkey, bvalue);

  // Execute the request
  PutBucketTaggingResult result = cosXml.PutBucketTagging(request);

  // Request succeeded
  Console.WriteLine(result.GetResultInfo());
}
catch (COSXML.CosException.CosClientException clientEx)
{
  // Request failed
  Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
  // Request failed
  Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}

try
{
  // Bucket name in the format of bucketname-APPID. You can get APPID by referring to https://console.tencentcloud.com/developer.
  string bucket = "examplebucket-1250000000";
  GetBucketTaggingRequest request = new GetBucketTaggingRequest(bucket);   
  // Execute the request
  GetBucketTaggingResult result = cosXml.GetBucketTagging(request);

  // Request succeeded
  Tagging tagging = result.tagging;
  Console.WriteLine(tagging);
}
catch (COSXML.CosException.CosClientException clientEx)
{
  // Request failed
  Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
  // Request failed
  Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}

try
{
  // Bucket name in the format of bucketname-APPID. You can get APPID by referring to https://console.tencentcloud.com/developer.
  string bucket = "examplebucket-1250000000";
  DeleteBucketTaggingRequest request = new DeleteBucketTaggingRequest(bucket);   
  // Execute the request
  DeleteBucketTaggingResult result = cosXml.DeleteBucketTagging(request);

  // Request succeeded
  Console.WriteLine(result.GetResultInfo());
}
catch (COSXML.CosException.CosClientException clientEx)
{
  // Request failed
  Console.WriteLine("CosClientException: " + clientEx);
}
catch (COSXML.CosException.CosServerException serverEx)
{
  // Request failed
  Console.WriteLine("CosServerException: " + serverEx.GetInfo());
}