C#读写txt文件

读入txt文件，并写入DataSet

using System.IO; using System.Text.RegularExpressions; DataSet myDs = new DataSet(); OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.InitialDirectory = "c://";//注意这里写路径时要用c://而不是c:/ openFileDialog.Filter = "txt文件|*.txt|所有文件|*.*"; openFileDialog.RestoreDirectory = true; openFileDialog.FilterIndex = 1; if (openFileDialog.ShowDialog() == DialogResult.OK) { int linNum = 0; string[] txtline = File.ReadAllLines(openFileDialog.FileName, Encoding.GetEncoding("gb2312"));//读入中文不是乱码 linNum = txtline.Length; jindu = "共:" + linNum.ToString() + "条"; for(int i=0;i

 

读取listBox控件数据写入txt

 

using (StreamWriter sw = new StreamWriter("log.txt",true)) { for (int i = 0; i < listBox1.Items.Count; i++) { sw.WriteLine(listBox1.Items[i].ToString()); } }