c# 二维码生成

dll下载：  https://pan.baidu.com/s/1MDQalDEoV4iDXRYsEzDXtw

生成图片，此dll适合Framework版本较多

Imports ThoughtWorks.QRCode.Codec  
                
                Dim qrCodeEncoder As QRCodeEncoder = New QRCodeEncoder()
                qrCodeEncoder.QRCodeScale = 8 ';//大小(值越大生成的二维码图片像素越高)
                qrCodeEncoder.QRCodeVersion = 0 ';//版本(注意：设置为0主要是防止编码的字符串太长时发生错  
                ';//指定utf-8编码， 支持中文
                Dim img As Bitmap = qrCodeEncoder.Encode(PicCellDic(dd), Encoding.UTF8)
                img.Save(filePicPath, ImageFormat.Jpeg)

　　

生成图片，此dll适合Framework版本较少

 
Imports QRCoder


                'Dim qrGenerator As QRCodeGenerator = New QRCoder.QRCodeGenerator
                'Dim qrCodeData As QRCodeData = qrGenerator.CreateQrCode(PicCellDic(dd), QRCodeGenerator.ECCLevel.Q)
                'Dim qrcode As QRCode = New QRCode(qrCodeData)
                'Dim qrCodeImage As Bitmap = qrcode.GetGraphic(15)
                'qrCodeImage.Save(filePicPath, ImageFormat.Jpeg)