npoi设置Excel边框

ICellStyle borderStyle = wk.CreateCellStyle(); borderStyle.BorderBottom = BorderStyle.Thin; borderStyle.BorderLeft = BorderStyle.Thin; borderStyle.BorderRight = BorderStyle.Thin; borderStyle.BorderTop = BorderStyle.Thin; borderStyle.BottomBorderColor = HSSFColor.Black.Index; borderStyle.LeftBorderColor = HSSFColor.Black.Index; borderStyle.RightBorderColor = HSSFColor.Black.Index; borderStyle.TopBorderColor = HSSFColor.Black.Index;