openpyxl获取和设置单个单元格的数据，本节课介绍官方文档的2种方法。

　　第1种：

　　Now we know how to get a worksheet, we can start modifying cells content. Cells can be accessed directly as keys of the worksheet:

	　　c = ws['A4']

　　This will return the cell at A4, or create one if it does not exist yet. Values can be directly assigned:

	　　ws['A4'] = 4

　　实际上就是直接用excel单元格的行列来标识单元格即可。我们创建一个excel然后赋值。

# -*- coding: utf-8 -*-

from openpyxl import Workbook


wb = Workbook()
ws = wb.active

ws['A4'] = 4
ws['B1'] = 5

cell = ws['A4']
print(cell.value)

cell = ws['B1']
print(cell.value)

wb.save('test.xlsx')

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5

　　第2种：

　　here is also the Worksheet.cell() method.

　　This provides access to cells using row and column notation:

	　　d = ws.cell(row=4, column=2, value=10)

　　也就是sheet对象有一个cell方法，通过传参来指定单元格设置值或获取值。

# -*- coding: utf-8 -*-

from openpyxl import Workbook


wb = Workbook()
ws = wb.active

ws.cell(row=5, column=1, value=6)
ws.cell(row=4, column=2, value=9)

cell = ws['A5']
print(cell.value)

cell = ws.cell(row=4, column=2)
print(cell.value)

wb.save('test.xlsx')

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9

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