小编use*_*975的帖子

我正在使用c#程序下载一个zip文件,我收到错误

at System.IO.Compression.ZipArchive.ReadEndOfCentralDirectory()
   at System.IO.Compression.ZipArchive.Init(Stream stream, ZipArchiveMode mode,
Boolean leaveOpen)
   at System.IO.Compression.ZipArchive..ctor(Stream stream, ZipArchiveMode mode,
 Boolean leaveOpen, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.Open(String archiveFileName, ZipArchiveMode
mode, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.ExtractToDirectory(String sourceArchiveFileN
ame, String destinationDirectoryName, Encoding entryNameEncoding)
   at System.IO.Compression.ZipFile.ExtractToDirectory(String sourceArchiveFileN
ame, String destinationDirectoryName)

这是程序

    response = (HttpWebResponse)request.GetResponse();
    Stream ReceiveStream = response.GetResponseStream();
    byte[] buffer = new byte[1024];
    FileStream outFile = new FileStream(zipFilePath, FileMode.Create);
    int bytesRead;
    while ((bytesRead = ReceiveStream.Read(buffer, 0, buffer.Length)) != 0)
        outFile.Write(buffer, 0, bytesRead);
    outFile.Close();
    response.Close();
    try
    {
        ZipFile.ExtractToDirectory(zipFilePath, destnDirectoryName);
    }
    catch …

我对 AWS s3 存储桶概念有点陌生。我想从 s3 存储桶中的文件夹“TODAY FILE1”下载文件并使用它。我知道如何使用命令提示符在命令行中执行此操作。我不知道如何在 C# 中实现。

认为

这是我在命令提示符下执行的操作

C:\> aws s3 cp "s3://mys3bucket-output/TODAY FILE1" . --recursive

这就是我做的 C# 程序并得到错误

string accessKey = "abc123";
string secretKey = "secret123";
string bucketName = "mys3bucket-output"
TransferUtility fileTransferUtility =   new TransferUtility(new AmazonS3Client(accessKey, secretKey, Amazon.RegionEndpoint.USEast2));


BasicAWSCredentials basicCredentials = new BasicAWSCredentials(accessKey,secretKey);
AmazonS3Client s3Client = new AmazonS3Client(new BasicAWSCredentials(accessKey, secretKey), Amazon.RegionEndpoint.USEast2);
ListObjectsRequest request = new ListObjectsRequest();

ListObjectsResponse response = s3Client.ListObjects(request.BucketName= bucketName, request.Prefix="TODAY FILE1/");

foreach (S3Object obj in response.S3Objects)
{
    try
    {
        Console.WriteLine("{0}", obj.Key);
        fileTransferUtility.Download(@"C:\Temp", bucketName, obj.Key); …

我有一个非常大的文本文件,大小为250 GB,由供应商提供给我们.它们还为我们提供了一个控制文件,该文件应该包含大文件中的行数.有时会出现不匹配的情况.我如何计算Powershell中的线条？我尝试了这个命令,它运行了半个多小时,但还没有完成.

Get-content C:\test.txt | Measure-Object –Line

(gc C:\test.txt | Measure-object | select count).count

任何帮助表示赞赏谢谢MR

我有一个要求,我需要从这个HTML获取链接

"<span class=""name""><a href=Details.aspx?entityID=1&hash=20&searchFunctionID=53b&type=Advanced&nameSet=Entities&q=a&textSearchType=ExactPhrase&orgTypes=01%2c02%2c03%2c04%2c05%2c06%2c07%2c08%2c09%2c10%2c11%2c12%2c13%2c14%2c15%2c16%2c90%2c96%2c98%2c99> GOOGLE CORPORATION  </a> </span>  <br /> <span class=typeDescription>  09  -  Analytics Company </span>"

我需要的输出是

Details.aspx?entityID=1&hash=20&searchFunctionID=53b&type=Advanced&nameSet=Entities&q=a&textSearchType=ExactPhrase&orgTypes=01%2c02%2c03%2c04%2c05%2c06%2c07%2c08%2c09%2c10%2c11%2c12%2c13%2c14%2c15%2c16%2c90%2c96%2c98%2c99

我用了

string sPattern ="[<a href=](.*?(99))";
MatchCollection mcMatches = Regex.Matches(input,sPattern);
foreach (Match m in mcMatches)
{
   Console.WriteLine(m.Value);
}

这不是给我正确的输出.任何人都可以指出我正确的方向.