我得到了一个FileSystemWatcher，当我在第一个目录中创建一个文件时，它也应该进入第二个目录。所以我希望文件已经存在于第二个目录中时被覆盖。它不会工作。我懂了：
private void fileSystemWatcher1_Created(object sender, System.IO.FileSystemEventArgs e)
{
listBox1.Items.Add("File created> " + e.FullPath + " -Date:" + DateTime.Now);
if (File.Exists(target+e.Name))
{
File.Delete(target+e.Name);
}
File.Copy(e.FullPath, Path.Combine(target, e.Name));
}
我遇到了另一个问题：它显示文件的创建时间，而不是重命名、删除、更改的时间。这是我的代码：
private void fileSystemWatcher1_Changed(object sender, System.IO.FileSystemEventArgs e)
{
if (!pause)
{
listBox1.Items.Add("File changed> " + e.FullPath + " -Date:" + DateTime.Now);
}
}
private void fileSystemWatcher1_Created(object sender, System.IO.FileSystemEventArgs e)
{
listBox1.Items.Add("File created> " + e.FullPath + " -Date:" + DateTime.Now);
if (File.Exists(target+e.Name))
{
File.Delete(target+e.Name);
}
File.Copy(e.FullPath, Path.Combine(target, e.Name));
}
private void fileSystemWatcher1_Deleted(object sender, System.IO.FileSystemEventArgs e)
{
if (!pause)
{
listBox1.Items.Add("File deleted> " + e.FullPath + " -Date:" + DateTime.Now);
File.Delete(target+e.Name);
}
}
private void fileSystemWatcher1_Renamed(object sender, System.IO.RenamedEventArgs e)
{
if (!pause)
{
listBox1.Items.Add("File renamed> " + e.FullPath + " -Date:" + DateTime.Now);
}
}
private void Start_Click(object sender, EventArgs e)
{
fileSystemWatcher1.Path = source;
if (!pause)
{
pause = true;
Start.Text = "Pause";
fileSystemWatcher1.EnableRaisingEvents = true;
}
else
{
pause = false;
Start.Text = "Start";
fileSystemWatcher1.EnableRaisingEvents = false;
}
}