C#怎么用后台上传图片，一直返回401

public static void UploadFileWithoutKey(string bucket, string fname)

    {
        var policy = new PutPolicy(bucket, 3600);
        string upToken = policy.Token();
        IOClient target = new IOClient();
        PutExtra extra = new PutExtra();
        PutRet ret = target.PutFileWithoutKey(upToken, "C:\\Users\\Lenovo-Chen\\Desktop\\1.jpg", extra);
        //Console.WriteLine(ret.Response.ToString());
    }

---

会不会是因为上传的文件有点大，

默认限制好像不是很大，要在 web.config 里改一下

参考：
http://www.cnblogs.com/zwffff/archive/2009/04/29/1446229.html
http://blog.csdn.net/dxnn520/article/details/15504761