我在将一系列合并单元格水平居中对齐时遇到问题。对齐方式保持在左侧。这是我的代码。ws.Cells[lStartColumn+lStartRow].Value=gPortfolioName+"-"+lTypeOfPortfolioPerf+"PerformanceUpdate";ws.Cells[lStartColumn+lStartRow+":"+lEndColumn+lEndRow].Merge=true;ws.Cells[lStartColumn+lStartRow+":"+lEndColumn+lEndRow].Style.HorizontalAlignment=ExcelHor
