设置对象过期时间

以下代码展示了如何设置最新版本对象和历史版本对象的过期时间：

// 初始化配置参数ObsConfig config = new ObsConfig();config.Endpoint = "https://your-endpoint";// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。// 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.htmlstring accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);// 创建ObsClient实例ObsClient client = new ObsClient(accessKey, secretKey, config);// 设置对象过期时间try{    SetBucketLifecycleRequest request = new SetBucketLifecycleRequest();    request.BucketName = "bucketname";    request.Configuration = new LifecycleConfiguration();    LifecycleRule rule1 = new LifecycleRule();    rule1.Id = "rule1";    rule1.Prefix = "prefix";    rule1.Status = RuleStatusEnum.Enabled;    rule1.Expiration = new Expiration();    //指定满足前缀的对象创建60天后过期    rule1.Expiration.Days = 60;    // 指定满足前缀的对象成为历史版本60天后过期    rule1.NoncurrentVersionExpiration = new NoncurrentVersionExpiration();    rule1.NoncurrentVersionExpiration.NoncurrentDays = 60;    request.Configuration.Rules.Add(rule1);    SetBucketLifecycleResponse response = client.SetBucketLifecycle(request);    Console.WriteLine("Set bucket lifecycle response: {0}", response.StatusCode);}catch (ObsException ex){    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);}

• 调用设置生命周期规则后会将原有规则覆盖。