1.引入SDK bin文件,下载地址：https://docs-aliyun.cn-hangzhou.oss.aliyun-inc.com/internal/oss/0.0.4/assets/sdk/OSS_SDK_DOTNET_2_3_0.zip?spm=5176.doc32085.2.3.dH1Os6&file=OSS_SDK_DOTNET_2_3_0.zip
2.源代码：
using System;
using System.Collections.Generic;
using Aliyun.OSS;
namespace TaoYe { /// <summary> /// 快速入门示例程序 /// </summary> public static class SimpleSamples { private const string _accessKeyId = "<your AccessKeyId>"; private const string _accessKeySecret = "<your AccessKeySecret>"; private const string _endpoint = "<valid host name>"; private const string _bucketName = "<your bucket name>"; private const string _key = "<your key>"; private const string _fileToUpload = "<your local file path>"; private static OssClient _client = new OssClient(_endpoint, _accessKeyId, _accessKeySecret); public static void Main(string[] args) { CreateBucket(); SetBucketAcl(); GetBucketAcl(); PutObject(); ListObjects(); GetObject(); DeleteObject(); // DeleteBucket(); Console.WriteLine("Press any key to continue . . . "); Console.ReadKey(true); } /// <summary> /// 创建一个新的存储空间 /// </summary> private static void CreateBucket() { try { var result = _client.CreateBucket(_bucketName); Console.WriteLine("创建存储空间{0}成功", result.Name); } catch (Exception ex) { Console.WriteLine("创建存储空间失败. 原因：{0}", ex.Message); } } /// <summary> /// 上传一个新文件 /// </summary> private static void PutObject() { try { _client.PutObject(_bucketName, _key, _fileToUpload); Console.WriteLine("上传文件成功"); } catch (Exception ex) { Console.WriteLine("上传文件失败.原因: {0}", ex.Message); } } /// <summary> /// 列出存储空间内的所有文件 /// </summary> private static void ListObjects() { try { var keys = new List<string>(); ObjectListing result = null; string nextMarker = string.Empty; /// 由于ListObjects每次最多返回100个结果，所以，这里需要循环去获取，直到返回结果中IsTruncated为false do { var listObjectsRequest = new ListObjectsRequest(_bucketName) { Marker = nextMarker, MaxKeys = 100 }; result = _client.ListObjects(listObjectsRequest); foreach (var summary in result.ObjectSummaries) { keys.Add(summary.Key); } nextMarker = result.NextMarker; } while (result.IsTruncated); Console.WriteLine("列出存储空间中的文件"); foreach (var key in keys) { Console.WriteLine("文件名称：{0}", key); } } catch (Exception ex) { Console.WriteLine("列出存储空间中的文件失败.原因： {0}", ex.Message); } } /// <summary> /// 下载文件 /// </summary> private static void GetObject() { try { var result = _client.GetObject(_bucketName, _key); Console.WriteLine("下载的文件成功，名称是：{0}，长度：{1}", result.Key, result.Metadata.ContentLength); } catch (Exception ex) { Console.WriteLine("下载文件失败.原因：{0}", ex.Message); } } /// <summary> /// 删除文件 /// </summary> private static void DeleteObject() { try { _client.DeleteObject(_bucketName, _key); Console.WriteLine("删除文件成功"); } catch (Exception ex) { Console.WriteLine("删除文件失败.原因： {0}", ex.Message); } } /// <summary> /// 获取存储空间ACL的值 /// </summary> private static void GetBucketAcl() { try { var result = _client.GetBucketAcl(_bucketName); foreach (var grant in result.Grants) { Console.WriteLine("获取存储空间权限成功，当前权限:{0}", grant.Permission.ToString()); } } catch (Exception ex) { Console.WriteLine("获取存储空间权限失败.原因： {0}", ex.Message); } } /// <summary> /// 设置存储空间ACL的值 /// </summary> private static void SetBucketAcl() { try { _client.SetBucketAcl(_bucketName, CannedAccessControlList.PublicRead); Console.WriteLine("设置存储空间权限成功"); } catch (Exception ex) { Console.WriteLine("设置存储空间权限失败. 原因：{0}", ex.Message); } } /// <summary> /// 删除存储空间 /// </summary> private static void DeleteBucket() { try { _client.DeleteBucket(_bucketName); Console.WriteLine("删除存储空间成功"); } catch (Exception ex) { Console.WriteLine("删除存储空间失败", ex.Message); } } } }
关于：
https://help.aliyun.com/document_detail/32085.html?spm=5176.doc32086.6.268.ahRddG （API文档的原文地址）
_accessKeyId 和_accessKeySecret 是管理控制台里的key-value（需要注意别暴露在外面）
_endpoint 是域名,OSS控制台里能绑定自己的域名,没有自己的域名也无妨,默认是阿里云提供的域名地址
_bucketName 是OSS里面的文件夹名
_key是需要存储的文件名_fileToUpload则是文件路径
以上,能实现简单的OSS使用。 
