简单上传按照官网上示例加了md5校验一直提示SignatureDoesNotMatch，去掉就可以了

[wppeng520]

using (var fs = File.Open(localFilename, FileMode.Open)) { md5 = OssUtils.ComputeContentMd5(fs, fs.Length); } var objectMeta = new ObjectMetadata { ContentMd5 = md5 };