String.Replace()擦除整个字符串-C#

string str = "Hello, World!";
string emptyStr = str.Replace(str, string.Empty);

using TencentCloud.Common;
using TencentCloud.Cos.V20180528;
using TencentCloud.Cos.V20180528.Models;

Credential cred = new Credential { SecretId = "your_secret_id", SecretKey = "your_secret_key" };
ClientConfig clientConfig = new ClientConfig { Region = "ap-shanghai" };

CosClient client = new CosClient(cred, clientConfig);

string bucketName = "your_bucket_name";
string key = "your_key";

DeleteObjectRequest deleteObjectRequest = new DeleteObjectRequest();
deleteObjectRequest.Bucket = bucketName;
deleteObjectRequest.Key = key;

client.DeleteObject(deleteObjectRequest);