c#新手求教 怎么用vs2005 导入空白的txt文档

StreamReader sr = new StreamReader(txtPath.Text, Encoding.GetEncoding("GB2312"))

string line

string strShow = ""

while ((line = sr.ReadLine()) != null)

{

strShow = strShow + line + "\n"

}

rtxtRead.Text = strShow

sr.Close()

private void btnSaveToTxt_Click(object sender, EventArgs e)

        {

            // 假设你的程序根目录有一个MyData.txt的文件(在Debug文件夹下)

            string path=Application.StartupPath+".\\MyData.txt"

            if (File.Exists(path))

            {

                // 以追加的方式创建文件流对象sw

                using (StreamWriter sw = new StreamWriter(path,true))

                {

                    sw.WriteLine(textBox1.Text) // 把文本框的数据写入指定的文件

                }

                MessageBox.Show("一键保存成功。")

            }

            else {

                MessageBox.Show("不存在MyData.txt的文件，请重新创建它。")

            }

            

        }

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