1 sr = new StringReader(str); 2 PrintDocument pd = new PrintDocument(); 3 pd.PrintController = new System.Drawing.Printing.StandardPrintController(); 4 PaperSize pageSize = new PaperSize("Custom", getYc(58), 600);//一定要Custom，写别的改变不了尺寸 5 pd.DefaultPageSettings.Margins.Top = 2; 6 pd.DefaultPageSettings.Margins.Left = 0; 7 pd.DefaultPageSettings.PaperSize = pageSize; 8 pd.PrinterSettings.PrinterName = pd.DefaultPageSettings.PrinterSettings.PrinterName;//默认打印机 9 pd.PrintPage += new PrintPageEventHandler(pd_PrintPage); 10 pd.Print(); 11 12 …………………………………… 13 14 //厘米转换英寸 15 private static int getYc(double cm) 16 { 17 18 return (int)(cm / 25.4) * 100; 19 20 } 21 22 23 24 25 private static void pd_PrintPage(object sender, PrintPageEventArgs ev) 26 { 27 Font printFont = new Font("Arial", 9);//打印字体 28 float linesPerPage = 0; 29 float yPos = 0; 30 int count = 0; 31 float leftMargin = ev.MarginBounds.Left; 32 float topMargin = ev.MarginBounds.Top; 33 String line = ""; 34 linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics); 35 while (count < linesPerPage && ((line = sr.ReadLine()) != null)) 36 { 37 yPos = topMargin + (count * printFont.GetHeight(ev.Graphics)); 38 ev.Graphics.DrawString(line, printFont, Brushes.Black, 39 leftMargin, yPos, new StringFormat()); 40 count++; 41 } 42 // If more lines exist, print another page. 43 if (line != null) 44 ev.HasMorePages = true; 45 else 46 ev.HasMorePages = false; 47 }