c#创建二维码

雨点打透心脏的1/2处 2023-02-23 08:59 43阅读 0赞

在Winform中有很多方法创建二维码：

1.  利用ThoughtWorks.QRCode.dll,nuget包引用

using System;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    using ThoughtWorks.QRCode.Codec;
    
    namespace QRCodeDemo
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
                pictureBox1.ImageLocation = QRCode("http://www.baidu.com");
            }
    
            private static string QRCode(string encodeString)
            {
                Bitmap bt;
                QRCodeEncoder qRCodeEncoder = new QRCodeEncoder();
                qRCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
                qRCodeEncoder.QRCodeScale = 4;
                qRCodeEncoder.QRCodeVersion = 6;
                qRCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
                qRCodeEncoder.QRCodeBackgroundColor = Color.White;
                qRCodeEncoder.QRCodeForegroundColor = Color.Black;
                bt = qRCodeEncoder.Encode(encodeString, Encoding.UTF8);
                string filename = "code";
                string filepath = AppDomain.CurrentDomain.BaseDirectory + "QRCode\\";
                string codeUrl = filepath + filename + ".jpg";
                if (!System.IO.Directory.Exists(filepath))
                {
                    System.IO.Directory.CreateDirectory(filepath);
                }
                bt.Save(codeUrl);
                
                return codeUrl;
            }
        }
    }

1.  利用Devexpress的BarControl控件。 这个可以直接拖动控件，使用比较简单  
    效果图：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpbmdrb25ndGlhbnl1emhhbw_size_16_color_FFFFFF_t_70]

> 参考:
> 
> 1.  https://www.cnblogs.com/wuhuacong/p/6112976.html
> 2.  https://www.cnblogs.com/cang12138/p/5209669.html

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpbmdrb25ndGlhbnl1emhhbw_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200706233439802.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpbmdrb25ndGlhbnl1emhhbw==,size_16,color_FFFFFF,t_70