using System;

using System.Collections.Generic;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using ThoughtWorks.QRCode;

using ThoughtWorks.QRCode.Codec;

namespace QRCodePro

{

    public class QRCode

    {

        /// 生成二维码

        /// </summary>

        /// <param name="strData">要生成的文字或者数字</param>

        /// <param name="qrEncoding">三种尺寸：BYTE ，ALPHA_NUMERIC，NUMERIC</param>

        /// <param name="level">大小：L M Q H</param>

        /// <param name="version">版本：如 8</param>

        /// <param name="scale">比例：如 4</param>

        /// <returns></returns>

        public static Image CreateCode_Choose(string strData, string qrEncoding, string size, int version, int scale)

        {

            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();

            string encoding = qrEncoding;

            switch (encoding)

            {

                case "Byte":

                    qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;

                    break;

                case "AlphaNumeric":

                    qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;

                    break;

                case "Numeric":

                    qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;

                    break;

                default:

                    qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;

                    break;

            }

            qrCodeEncoder.QRCodeScale = scale;

            qrCodeEncoder.QRCodeVersion = version;

            switch (size)

            {

                case "L":

                    qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;

                    break;

                case "M":

                    qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;

                    break;

                case "Q":

                    qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;

                    break;

                default:

                    qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;

                    break;

            }

            //文字生成图片

            Image image = qrCodeEncoder.Encode(strData);

            return image;

        }

    }

}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace QRCodePro

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            cboEncoding.Items.Add("Byte");

            cboEncoding.Items.Add("AlphaNumeric");

            cboEncoding.Items.Add("Numeric");

            cboEncoding.SelectedIndex = ;

            //填充大小下拉框

            cboSize.Items.Add("M");

            cboSize.Items.Add("L");

            cboSize.Items.Add("Q");

            cboSize.Items.Add("H");

            cboSize.SelectedIndex = ;

            //填充文本框

            txtVersion.Text = "";

            txtScale.Text = "";

        }

        private void btnCreateCode_Click(object sender, EventArgs e)

        {

            string content = txtContent.Text;

            int version = Convert.ToInt32(txtVersion.Text);

            int scale = Convert.ToInt32(txtScale.Text);

            string size = cboSize.SelectedItem.ToString();

            string encoding = cboEncoding.SelectedItem.ToString();

            //检查空值字符串

            if (content == null || content == "")

            {

                MessageBox.Show("请输入二维码信息，支持中文");

            }

            else

            {

                Image img = QRCode.CreateCode_Choose(content, encoding, size, version, scale);

                picCode.Image = img;

            }

        }

        private void btnReset_Click(object sender, EventArgs e)

        {

            txtContent.Text = "";

        }

        private void btnSave_Click(object sender, EventArgs e)

        {

            if (picCode.Image != null)

            {

                SaveImages(picCode);

            }

            else

            {

                MessageBox.Show("还没生成图像呢！");

            }

        }

        private void SaveImages(PictureBox pic)

        {

            string Parentpath = @"D:\Photo";

            //自1970 年1月1日00:00:00 GMT以来的毫秒数

            string filename = DateTime.Now.Ticks.ToString();

            if (Parentpath.Substring(Parentpath.Length - , ) != @"\")

                Parentpath = Parentpath + @"\";

            string childPath = Parentpath + DateTime.Now.ToString("yyyyMMdd");

            if (!Directory.Exists(childPath))

                Directory.CreateDirectory(childPath);

            pic.Image.Save(childPath + "\\" + filename + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

            MessageBox.Show("保存成功！");

        }

    }

}