C#实现文件读写

简单的实现ini、CSV、txt文件读写方法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp7
{
    public partial class frmCsv : Form
    {
        private DataTable dt = new DataTable（）;

        public frmCsv（）
        {
            InitializeComponent（）;

            dataGridView1.DataSource = dt;
        }

        private void TextBox1_KeyPress（object sender KeyPressEventArgs e）
        {
            if （e.KeyChar == ‘\r‘）
            {
                e.Handled = true;
                ChangeRowCount（）;
            }
        }

        private void ChangeRowCount（）
        {
            int rowCount = int.Parse（tb_RowCnt.Text）;

            while （rowCount > dt.Rows.Count）
            {
                dt.Rows.Add（）;  //增加行
                dt.Rows[dt.Rows.Count - 1][0] = dt.Rows.Count;
        

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-07-12 10:01  WindowsFormsApp7\
     目录           0  2019-07-12 10:01  WindowsFormsApp7\.vs\
     目录           0  2019-07-12 10:01  WindowsFormsApp7\.vs\WindowsFormsApp7\
     目录           0  2019-07-12 17:47  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\
     文件       69120  2019-11-29 16:23  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\.suo
     目录           0  2019-07-12 10:02  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\Server\
     目录           0  2019-11-29 16:23  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\Server\sqlite3\
     文件           0  2019-07-12 10:02  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\Server\sqlite3\db.lock
     文件     1191936  2019-09-05 21:04  WindowsFormsApp7\.vs\WindowsFormsApp7\v16\Server\sqlite3\storage.ide
     目录           0  2019-09-05 15:56  WindowsFormsApp7\WindowsFormsApp7\
     文件        1153  2019-07-12 10:02  WindowsFormsApp7\WindowsFormsApp7.sln
     文件         184  2019-07-13 09:04  WindowsFormsApp7\WindowsFormsApp7\App.config
     目录           0  2019-07-12 10:23  WindowsFormsApp7\WindowsFormsApp7\bin\
     目录           0  2019-07-12 10:31  WindowsFormsApp7\WindowsFormsApp7\bin\Debug\
     文件       23040  2019-09-05 15:56  WindowsFormsApp7\WindowsFormsApp7\bin\Debug\WindowsFormsApp7.exe
     文件         184  2019-07-13 09:04  WindowsFormsApp7\WindowsFormsApp7\bin\Debug\WindowsFormsApp7.exe.config
     文件       75264  2019-09-05 15:56  WindowsFormsApp7\WindowsFormsApp7\bin\Debug\WindowsFormsApp7.pdb
     目录           0  2019-07-12 10:23  WindowsFormsApp7\WindowsFormsApp7\bin\Release\
     目录           0  2019-08-24 17:45  WindowsFormsApp7\WindowsFormsApp7\FileOperate\
     文件        1628  2019-08-24 17:45  WindowsFormsApp7\WindowsFormsApp7\FileOperate\book.cs
     文件        3242  2019-07-12 16:25  WindowsFormsApp7\WindowsFormsApp7\FileOperate\CSV.cs
     文件        1549  2019-07-16 11:47  WindowsFormsApp7\WindowsFormsApp7\FileOperate\INI.cs
     文件        1731  2019-07-13 18:08  WindowsFormsApp7\WindowsFormsApp7\FileOperate\TXT.cs
     文件         466  2019-08-24 17:45  WindowsFormsApp7\WindowsFormsApp7\FileOperate\xml.cs
     文件        2723  2019-07-22 20:57  WindowsFormsApp7\WindowsFormsApp7\frmCsv.cs
     文件        6029  2019-07-22 20:57  WindowsFormsApp7\WindowsFormsApp7\frmCsv.Designer.cs
     文件        5817  2019-07-22 20:57  WindowsFormsApp7\WindowsFormsApp7\frmCsv.resx
     文件        1968  2019-08-21 15:06  WindowsFormsApp7\WindowsFormsApp7\frmIni.cs
     文件       11145  2019-07-12 17:11  WindowsFormsApp7\WindowsFormsApp7\frmIni.Designer.cs
     文件        5817  2019-07-12 17:11  WindowsFormsApp7\WindowsFormsApp7\frmIni.resx
     文件        1045  2019-09-05 15:56  WindowsFormsApp7\WindowsFormsApp7\frmMain.cs
............此处省略35个文件信息