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";

  DomainConfiguration domain = new DomainConfiguration();
  domain.rule = new DomainConfiguration.DomainRule();
  domain.rule.Name = "www.qq.com";
  domain.rule.Status = "ENABLED";
  domain.rule.Type = "WEBSITE";

  PutBucketDomainRequest request = new PutBucketDomainRequest(bucket, domain);   
  // Execute the request
  PutBucketDomainResult result = cosXml.PutBucketDomain(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";
  GetBucketDomainRequest request = new GetBucketDomainRequest(bucket);   
  // Execute the request
  GetBucketDomainResult result = cosXml.GetBucketDomain(request);

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