C# 系统垃圾扫描程序

delegate void AddListViewItemsCallBack(ListViewItem[] lvis); private void addListViewItem(ListViewItem[] lvis) { if (listView1.InvokeRequired) { AddListViewItemsCallBack d = new AddListViewItemsCallBack(addListViewItem); this.Invoke(d, new object[] { lvis }); } else { listView1.Items.AddRange(lvis); } } private void clearfile(object pp) { Parameter p = (Parameter)pp; string pathvariable=p.Path; string fileexpand=p.SearchPattern; string filetype=p.FileType; string pathadd = p.PathAdd; //如果小的目录，不用多线程，注意下面的改动，不把listView.Refresh()放在循环中即可消除闪烁。 string path = Environment.GetEnvironmentVariable(pathvariable) + pathadd; string[] pathfiles = Directory.GetFiles(path, fileexpand, SearchOption.AllDirectories); ListViewItem[] lvis = new ListViewItem[pathfiles.Length]; if ((pathfiles.Length) > 0) { int i = 0; foreach (string filedir in pathfiles) { string filename = filedir.Substring(filedir.LastIndexOf("\\") + 1); FileInfo filelg = new FileInfo(filedir); string filelength = (filelg.Length / 1024).ToString(); if (filelength == "0") filelength = "1"; ListViewItem objListItem = new ListViewItem(filetype); objListItem.SubItems.Add(filename); objListItem.SubItems.Add(filelength); objListItem.SubItems.Add(filedir); objListItem.EnsureVisible(); lvis[i++]=objListItem; } } addListViewItem(lvis); //若不使用多线程，调用此句listView1.Items.AddRange(lvis); } private void button1_Click(object sender, EventArgs e) { listView1.Items.Clear(); Thread th =new Thread(new ParameterizedThreadStart(this.clearfile)); Parameter p=new Parameter(); p.Path="temp"; p.SearchPattern="*.*"; p.FileType="临时文件"; p.PathAdd=""; th.Start(p); }