如何将MemoryStream转换为FileStream？

Question

is work:

using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFile)))
{
  ZipEntry theEntry;
  while ((theEntry = s.GetNextEntry()) != null)
  {
  }
}

not work, memorystream

using (ZipInputStream s = new ZipInputStream(memorystream))
{
    ZipEntry theEntry;
    while ((theEntry = s.GetNextEntry()) != null)//Exception **EOF in header**
    {
    }
}

how convert ?

Answer 1

Without knowing more about the ZipInputStream you're using, the only guess I can hazard is that it's trying to use the MemoryStream you're passing it before that stream's position has been reset to the beginning. Try adding this line before your code snippet:

memoryStream.Seek(0, SeekOrigin.Begin);

Answer 2

FileStream fs = new Filestream();

The call to new Filestream(); is incorrect. FileStream doesn't have any constructors that take zero arguments.