4*NPOI 对齐方式样式

   ICellStyle style0 = myworkbook.CreateCellStyle();  
            style0.Alignment = HorizontalAlignment.General;//【General】数字、时间默认：右对齐；BOOL：默认居中；字符串：默认左对齐  
  
            ICellStyle style1 = myworkbook.CreateCellStyle();  
            style1.Alignment = HorizontalAlignment.Left;//【Left】左对齐  
  
            ICellStyle style2 = myworkbook.CreateCellStyle();  
            style2.Alignment = HorizontalAlignment.Center;//【Center】居中  
  
            ICellStyle style3 = myworkbook.CreateCellStyle();  
            style3.Alignment = HorizontalAlignment.Right;//【Right】右对齐  
  
            ICellStyle style4 = myworkbook.CreateCellStyle();  
            style4.Alignment = HorizontalAlignment.Fill;//【Fill】填充  
  
            ICellStyle style5 = myworkbook.CreateCellStyle();  
            style5.Alignment = HorizontalAlignment.Justify;//【Justify】两端对齐[会自动换行]（主要针对英文）  
  
            ICellStyle style6 = myworkbook.CreateCellStyle();  
            style6.Alignment = HorizontalAlignment.CenterSelection;//【CenterSelection】跨列居中  
  
            ICellStyle style7 = myworkbook.CreateCellStyle();  
            style7.Alignment = HorizontalAlignment.Distributed;//【Distributed】分散对齐[会