產生二維條碼

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安裝nuget套件 ZXing.Net

BarcodeWriter bw = new BarcodeWriter();

bw.Format = BarcodeFormat.QR_CODE;

bw.Options.Hints.Add(EncodeHintType.MARGIN, 2); // 避免內距太寬造成圖片過小

bw.Options.Height = bw.Options.Width = 80;

Bitmap bitmap = bw.Write("123");

var picture = sheet.Drawings.AddPicture("123", bitmap);

picture.SetPosition(0, 0, 0, 0); // zero base

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