wp7 利用ZipOutputStream压缩.txt文件问题

[June1991]

//压缩
private static void CreateZipFile(string filesPath, string zipFilePath)
{
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
{
if (isf.FileExists(filesPath))//判断文件夹是否存在
{
MessageBox.Show("文件夹不存在");
}
}
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
{
if (isf.DirectoryExists(Used.strSignInPath))//判断文件是否存在
{
MessageBox.Show("文件不存在");
return;
}
string[] filenames = isf.GetFileNames(filesPath);
try
{
using (ZipOutputStream s = new ZipOutputStream(isf.CreateFile(zipFilePath)))
{
s.SetLevel(9);
byte[] buffer = new byte[4096];
foreach (string file in filenames)
{
ZipEntry entry = new ZipEntry(file);
entry.DateTime = DateTime.Now;
s.PutNextEntry(entry);
using (FileStream fs = File.OpenRead(file))
{
int sourceBytes;
do
{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
s.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
}
}
s.Finish();
s.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
文件夹和.txt文件都是用IsolatedStorageFile创建的为什么压缩不成功呢？

[June1991]

[Quote=引用 1 楼 drsmart 的回复:]
嗨，wp7解压东西太可怜了
[/Quote]
我不是解压 是压缩

[DrSmart]

嗨，wp7解压东西太可怜了

[June1991]

  private static void CreateZipFile(string filesPath, string zipFilePath)
        {
            using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
            {
                string[] filenames = isf.GetFileNames(filesPath);
                try
                {
                    using (ZipOutputStream s = new ZipOutputStream(isf.CreateFile(zipFilePath)))
                    {
                        s.SetLevel(9);
                        byte[] buffer = new byte[4096];
                        foreach (string file in filenames)
                        {
                            ZipEntry entry = new ZipEntry(file);
                            entry.DateTime = DateTime.Now;
                            s.PutNextEntry(entry);
                            using (FileStream fs = File.OpenRead(file))
                            {
                                int sourceBytes;
                                do
                                {
                                    sourceBytes = fs.Read(buffer, 0, buffer.Length);
                                    s.Write(buffer, 0, sourceBytes);
                                } while (sourceBytes > 0);
                            }
                        }
                        s.Finish();
                        s.Close();
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }
            }

  using (FileStream fs = File.OpenRead(file))
到这里就无法执行了！

[June1991]

 using (var fs = isf.OpenFile(file,FileMode.OpenOrCreate,FileAccess.Read))