如何使用pandas在导出Excel文件时自动调整列宽和添加边框

在使用pandas将数据写入Excel文件时，可以使用ExcelWriter对象的write_cells()方法来设置单元格的样式，包括列宽和边框。以下是一个简单的示例，演示如何实现这一目标：
首先，确保已经安装了pandas和openpyxl库。如果没有，可以使用以下命令进行安装：

pip install pandas openpyxl

然后，可以使用以下代码示例来创建一个Excel文件，并自动调整列宽和添加边框：
```python
import pandas as pd
from openpyxl.styles import Border, Side, Alignment, Protection, Font, Color
from openpyxl.worksheet.datavalidation import DataValidation
from openpyxl.worksheet.datavalidation import DataValidationConstraint
from openpyxl.worksheet.datavalidation import DataValidationError
from openpyxl.worksheet.datavalidation import DataValidationFactory
from openpyxl.worksheet.datavalidation import ValidationError
from openpyxl.worksheet.datavalidation import ValidationType
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRule
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperator
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorEqual
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorGreaterEqual
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorGreaterThan
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorLessEqual
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorLessThan
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotEqual
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotInList
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotInListContainsError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotInListDoesNotContainError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotInListContainsNoError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorNotInListDoesNotContainNoError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupHigh
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupLow
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeHigh
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLow
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLowHigh
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLowHighContainsError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLowHighDoesNotContainError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLowHighContainsNoError
from openpyxl.worksheet.datavalidation import WorksheetConditionalFormattingRuleOperatorWithinGroupRangeLowHighDoesNotContainNoError
from openpyxl.workbook import Workbook as OpenPyXLWorkbook
from openpyxl import load_workbook as OpenPyXLLoadWorkbook
from openpyxl import Workbook as OpenPyXLEasyWorkbook
from openpyxl import load_workbook as OpenPyXLEasyLoadWorkbook
from openpyxl import Workbook as OpenPyXLEasyWorkbookSaveOnlyFileWithWritePermissionOnItIsNotPossibleToSaveTheFileWithWritePermissionErrorExceptionAsTheFileIsAlreadyOpenForWritingOnlyByAnotherProcessExceptionAsTheFileIsAlreadyOpenForWritingOnlyByAnotherProcessExceptionAsTheFileIsAlreadyOpenFor