Winform文件相关操作

复制文件

/// <summary>
/// 复制文件
/// </summary>
/// <param name="pLocalFilePath">要复制的文件路径</param>
/// <param name="pSaveFilePath">指定存储的文件路径</param>
public void CopyFile(string pLocalFilePath,string pSaveFilePath)
{
    if (File.Exists(pLocalFilePath))//必须判断要复制的文件是否存在
    {
        File.Copy(pLocalFilePath, pSaveFilePath, true);//三个参数分别是源文件路径，存储路径，若存储路径有相同文件是否替换
    }
}

获取文件夹下的所有文件名称

private IList<string> GetFolderFileNameList(string path)
{
    var folder = new DirectoryInfo(path);
    var reList=new List<string>();
    foreach (var file in folder.GetFiles())
    {
        reList.Add(file.Name);
    }
    return reList;
}

创建txt文件,并写入数据

var fs = new FileStream(textPath, FileMode.Create, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);
foreach (var file in compareFileNameList)
{
    sw.WriteLine(file);
}
sw.Close();
fs.Close();

读取txt文件

var txtFile = File.Open(textPath, FileMode.Open);
var txtFileList = new List<string>();
using (var stream = new StreamReader(txtFile))
{
    while (!stream.EndOfStream)
    {
        txtFileList.Add(stream.ReadLine());
    }
}

选择文件夹

FolderBrowserDialog dialog = new FolderBrowserDialog();
dialog.Description = "请选择文件路径";
if (dialog.ShowDialog() == DialogResult.OK)
{
    textBox1.Text = dialog.SelectedPath;
}