一、生成折线图方法
标签：C#,EPPlus,Cells,chart,Excel2,索引,colcount,worksheet,折线图 From： https://blog.csdn.net/weiwei_y/article/details/136707490/// <summary>
///生成折线图
/// </summary>
/// <param name="worksheet">sheet页数据 </param>
/// <param name="colcount">总列数</param>
/// <param name="tablename">table名</param>static void CreateChart(ExcelWorksheet worksheet, int colcount, string tablename)
{
ExcelChart chart = worksheet.Drawings.AddChart("chart", eChartType.LineMarkers);//图表类型 Line折线图 LineMarkers点线
chart.Legend.Position = eLegendPosition.Bottom;//图像图例定位
//worksheet.Cells[2,2, colcount, 2] 范围表示 Cells[开始行索引,开始列索引,结束行索引,结束列索引]
ExcelChartSerie serie1 = chart.Series.Add(worksheet.Cells[2, 2, co