C#中将DataTable转换成CSV文件的方法

/// <summary>/// 将DataTable转换成CSV文件/// </summary>/// <param name="dt">DataTable</param>/// <param name="filePath">文件路径</param>public static void SaveCsv(DataTable dt, string filePath){FileStream fs = null;StreamWriter sw = null;try{fs = new FileStream(filePath + dt.TableName + ".csv", FileMode.Create, FileAccess.Write);sw = new StreamWriter(fs, Encoding.Default);var data = string.Empty;//写出列名称for (var i = 0; i < dt.Columns.Count; i++){data += dt.Columns[i].ColumnName;if (i < dt.Columns.Count - 1){data += ",";}}sw.WriteLine(data);//写出各行数据for (var i = 0; i < dt.Rows.Count; i++){data =string.Empty;for (var j = 0; j < dt.Columns.Count; j++){data += dt.Rows[i][j].ToString();if (j < dt.Columns.Count - 1){data += ",";}}sw.WriteLine(data);}}catch (IOException ex){throw new IOException(ex.Message, ex);}finally{if (sw != null) sw.Close();if (fs != null) fs.Close();}}