阿里云OSS存储开发

OSSClient是与OSS服务交互的客户端，SDK的OSS操作都是通过OSSClient完成的。

下面代码新建了一个OSSClient:

using Aliyun.OpenServices.OpenStorageService;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AliyunTest
{
    class Program
    {
        static readonly string accessKeyId = "AccessKeyId";
        static readonly string accessKeySecret = "AccessKeySecret";
        //关于这个endPoint，可以参考：http://bbs.aliyun.com/read/149100.html?spm=5176.7189909.0.0.YiwiFw
        static readonly string endPoint = "http://oss-cn-beijing.aliyuncs.com";

        static void Main(string[] args)
        {
            //初始化 OSSClient
            OssClient ossClient = new OssClient(endPoint, accessKeyId, access