C# winForm utf8 gbk 相互转码小工具

代码大多来源于网络

开发工具：vs2017

项目文件：

链接：https://pan.baidu.com/s/1OVrAL5DjhDJEJGVAX7m29Q
提取码：67lj

界面：

代码：

using System;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;

namespace UTF8_GBK_TransCode
{
    public partial class Form1 : Form
    {
        
        public Form1()
        {
            InitializeComponent();
            CmbType.SelectedIndex = 0;//显示默认转换类型
        }

        //选择目标文件夹按钮
        private void BtnSeleteTargetFolder_Click(object sender, EventArgs e)
        {
            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
            {
                TxbTargetFolder.Text = folderBrowserDialog1.SelectedPath;
            }
        }

        //目标文件夹路径改变时
        private void TxbTargetFolder_TextChanged(object sender, EventArgs e)
        {
            showList();
        }
        //格式文本框内容改变时
        private void TxbFileExt_TextChanged(object sender, EventArgs e)
        {
            showList();
        }

        //显示文件列表
        public void showList()
        {
            if (TxbTargetFolder.Text.Trim() != "")
            {
                //初始化文件列表
                CheckedListBoxFiles.Items.Clear();

                if (Directory.Exists(TxbTargetFolder.Text.Trim()))//如果文件夹存在
                {
                    try
                    {
                        GetDirectory(TxbTargetFolder.Text.Trim());//遍历目录下所有文件
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show("获取源文件内文件列表失败：" + ex.Message);
                    }
                }
                else if (File.Exists(TxbTargetFolder.Text.Trim()))//如果文件存在
                {
                    FileInfo f = new FileInfo(TxbTargetFolder.Text.Trim());
                    Regex r = new Regex(f.Extension);
                    Match m = r.Match(TxbFileExt.Text.Trim());
                    if (m.Success)
                    {//过滤文件格式
                        int index = CheckedListBoxFiles.Items.Add(TxbTargetFolder.Text.Trim());//添加listbox,显示文件
                        CheckedListBoxFiles.SetItemChecked(index, true);//默认勾选新增项
                    }
                }
            }
        }

        //获得指定路径下所有子目录名
        public void GetDirectory(string path)
        {
            GetFileName(path);
            DirectoryInfo root = new DirectoryInfo(path);//目录
            foreach (DirectoryInfo d in root.GetDirectories())//遍历目录
            {
                GetDirectory(d.FullName);
            }
        }

        //获得指定路径下所有文件名
        public void GetFileName(string path)
        {
            DirectoryInfo root = new DirectoryInfo(path);//目录
            foreach (FileInfo f in root.GetFiles())
            {
                Regex r = new Regex(f.Extension);
                Match m = r.Match(TxbFileExt.Text.Trim());
                if(m.Success)//过滤文件格式
                {
                    int index=CheckedListBoxFiles.Items.Add(f.FullName);//添加listbox,显示文件
                    CheckedListBoxFiles.SetItemChecked(index, true);//默认勾选新增项
                    toolStripStatusLabel1.Text = "选中 " +CheckedListBoxFiles.Items.Count.ToString()+ " 个文件";//显示文件个数
                }
            }
        }

        //拖动文件夹进入文件路径文本框时
        private void TxbTargetFolder_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop))//如果是文件类型
            {
                e.Effect = DragDropEffects.Link;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        //拖动文件夹到文件路径文本框后
        private void TxbTargetFolder_DragDrop(object sender, DragEventArgs e)
        {
            TxbTargetFolder.Text = ((Array)e.Data.GetData(DataFormats.FileDrop)).GetValue(0).ToString();//获取文件|文件夹路径
        }

        //开始转码
        private void BtnStartTransCode_Click(object sender, EventArgs e)
        {
            if (CheckedListBoxFiles.CheckedItems.Count > 0)//如果有选中的文件
            {
                int coverSuccess = 0;//转换成功数

                if(CmbType.SelectedIndex == 0)//GBK 转 UTF8
                {
                    try{
                        for (int i = 0; i < CheckedListBoxFiles.CheckedItems.Count; i++)//遍历选中项
                        {
                            GBKtoUTF8(CheckedListBoxFiles.CheckedItems[i].ToString());//调用转码函数
                            coverSuccess++;
                        }
                    } 
                    catch (Exception ex)
                    {
                        
                        toolStripStatusLabel1.Text = ex.Message;
                    }
                    finally
                    {
                        toolStripStatusLabel1.Text = "转码成功文件: " + coverSuccess.ToString() + " 个";
                    }
                }
                else if(CmbType.SelectedIndex == 1)//UTF8 转 GBK
                {
                    try
                    {
                        for (int i = 0; i < CheckedListBoxFiles.CheckedItems.Count; i++)//遍历选中项
                        {
                            UTF8toGBK(CheckedListBoxFiles.CheckedItems[i].ToString());//调用转码函数
                            coverSuccess++;
                        }
                    }
                    catch (Exception ex)
                    {
                        toolStripStatusLabel1.Text = ex.Message;
                    }
                    finally
                    {
                        toolStripStatusLabel1.Text = "转码成功文件: " + coverSuccess.ToString() + " 个";
                    }
                }
                
            }
        }

        public void GBKtoUTF8(string filePath)//GBK 转 UTF8
        {
            
            var buffer = File.ReadAllBytes(filePath);//读取文件内容
            buffer = Encoding.Convert(Encoding.GetEncoding("gbk"), Encoding.UTF8, buffer);//转码
            File.WriteAllBytes(filePath, buffer);//写入文件
            toolStripStatusLabel1.Text = "转码成功";
        }

        public void UTF8toGBK(string filePath)//UTF8 转 GBK
        {
            var buffer = File.ReadAllBytes(filePath);//读取文件内容
            buffer = Encoding.Convert(Encoding.UTF8, Encoding.GetEncoding("gbk"), buffer);//转码
            File.WriteAllBytes(filePath, buffer);//写入文件
        }

        //全选按钮
        private void BtnSelectAll_Click(object sender, EventArgs e)
        {
            int fileItems = CheckedListBoxFiles.Items.Count;
            if (fileItems > 0)
            {
                for(int i = 0; i < fileItems; i++)
                {
                    CheckedListBoxFiles.SetItemChecked(i,true);
                }
            }
        }

        //反选按钮
        private void BtnSelectInvert_Click(object sender, EventArgs e)
        {
            int fileItems = CheckedListBoxFiles.Items.Count;
            if (fileItems > 0)
            {
                for (int i = 0; i < fileItems; i++)
                {
                    if (CheckedListBoxFiles.GetItemChecked(i))
                    {
                        CheckedListBoxFiles.SetItemChecked(i, false);
                    }
                    else
                    {
                        CheckedListBoxFiles.SetItemChecked(i, true);
                    }
                }
            }
        }

        //文件列表中的项改变选中状态时
        private void CheckedListBoxFiles_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            // 这个事件是指示某项的选中状态将要被更改、在更改前会执行这个事件
            // 所以checkedListBox.CheckedItems.Count 获取的是更改之前的值

            if (e.NewValue == CheckState.Checked)//选中
            {
                toolStripStatusLabel1.Text = "选中 " + (CheckedListBoxFiles.CheckedItems.Count + 1).ToString() + " 个文件";
            }
            else//非选中
            {
                toolStripStatusLabel1.Text = "选中 " + (CheckedListBoxFiles.CheckedItems.Count - 1).ToString() + " 个文件";
            }
        }
    }
}