推荐几款C#生成QR的库github：https://github.com/bingbing-gui/dotnet-guide
1. QRCoder
QRCoder is a simple library written in C# .NET that lets you generate QR codes. It doesn't have any dependencies on external libraries, is available as a NuGet package, and supports .NET Framework, . NET Core、. .NET Standard and .NET. The full list of supported target frameworks can be found here
2. ZXing.Net
一个支持在图像中解码和生成条形码(如 QR 码、PDF 417、EAN、UPC、Aztec、Data Matrix、Codabar)的库。
The project is a ported version of ZXing, a Java-based barcode reading and generation library. https://github.com/zxing/zxing it was manually ported with a lot of optimizations and improvements.
解码器支持以下条形码：UPC-A、UPC-E、EAN-8、EAN-13、Code 39、Code 93、Code 128、ITF、Codabar、MSI、RSS-14（所有变种）、QR 码、Data Matrix、Aztec 和 PDF-417。 编码器支持以下格式：UPC-A、EAN-8、EAN-13、Code 39、Code 128、ITF、Codabar、Plessey、MSI、QR 码、PDF-417、Aztec、Data Matrix
3. barcodelib
The library is designed to provide developers with a simple class to use when they need to generate a barcode image from a data string.