Python_Openpyxl 浅谈(最全总结 足够初次使用)
https://blog.csdn.net/u014597198/article/details/83104653
https://www.cnblogs.com/lgqboke/p/10907076.html
https://blog.csdn.net/weixin_33854644/article/details/93277706
Python_Openpyxl
1. 安装
pip install openpyxl
- 1
- 1
2. 打开文件
① 创建
from openpyxl import Workbook
# 实例化
wb = Workbook()
# 激活 worksheet
ws = wb.active
- 1
- 2
- 3
- 4
- 5
- 1
- 2
- 3
- 4
- 5
② 打开已有
>>> from openpyxl import load_workbook
>>> wb2 = load_workbook('文件名称.xlsx')
- 1
- 2
- 1
- 2
3. 储存数据
# 方式一:数据可以直接分配到单元格中(可以输入公式)
ws['A1'] = 42
# 方式二:可以附加行,从第一列开始附加(从最下方空白处,最左开始)(可以输入多行)
ws.append([1, 2, 3])
# 方式三:Python 类型会被自动转换
ws['A3'] = datetime.datetime.now().strftime("%Y-%m-%d")
- 1
- 2
- 3
- 4
- 5
- 6
- 1
- 2
- 3
- 4
- 5
- 6
4. 创建表(sheet)
# 方式一:插入到最后(default)
>>> ws1 = wb.create_sheet("Mysheet")
# 方式二:插入到最开始的位置
>>> ws2 = wb.create_sheet("Mysheet", 0)
- 1
- 2
- 3
- 4
- 1
- 2
- 3
- 4
5. 选择表(sheet)
# sheet 名称可以作为 key 进行索引
>>> ws3 = wb["New Title"]
>>> ws4 = wb.get_sheet_by_name("New Title")
>>> ws is ws3 is ws4
True
- 1
- 2
- 3
- 4
- 5
- 1
- 2
- 3
- 4
- 5
6. 查看表名(sheet)
# 显示所有表名
>>> print(wb.sheetnames)
['Sheet2', 'New Title', 'Sheet1']
# 遍历所有表
>>> for sheet in wb:
... print(sheet.title)
- 1
- 2
- 3
- 4
- 5
- 6
- 1
- 2
- 3
- 4
- 5
- 6
7. 访问单元格(call)
① 单一单元格访问
# 方法一
>>> c = ws['A4']
# 方法二:row 行;column 列
>>> d = ws.cell(row=4, column=2, value=10)
# 方法三:只要访问就创建
>>> for i in range(1,101):
... for j in range(1,101):
... ws.cell(row=i, column=j)
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
② 多单元格访问
# 通过切片
>>> cell_range = ws['A1':'C2']
# 通过行(列)
>>> colC = ws['C']
>>> col_range = ws['C:D']
>>> row10 = ws[10]
>>> row_range = ws[5:10]
# 通过指定范围(行 → 行)
>>> for row in ws.iter_rows(min_row=1, max_col=3, max_row=2):
... for cell in row:
... print(cell)
<Cell Sheet1.A1>
<Cell Sheet1.B1>
<Cell Sheet1.C1>
<Cell Sheet1.A2>
<Cell Sheet1.B2>
<Cell Sheet1.C2>
# 通过指定范围(列 → 列)
>>> for row in ws.iter_rows(min_row=1, max_col=3, max_row=2):
... for cell in row:
... print(cell)
<Cell Sheet1.A1>
<Cell Sheet1.B1>
<Cell Sheet1.C1>
<Cell Sheet1.A2>
<Cell Sheet1.B2>
<Cell Sheet1.C2>
# 遍历所有 方法一
>>> ws = wb.active
>>> ws['C9'] = 'hello world'
>>> tuple(ws.rows)
((<Cell Sheet.A1>, <Cell Sheet.B1>, <Cell Sheet.C1>),
(<Cell Sheet.A2>, <Cell Sheet.B2>, <Cell Sheet.C2>),
...
(<Cell Sheet.A8>, <Cell Sheet.B8>, <Cell Sheet.C8>),
(<Cell Sheet.A9>, <Cell Sheet.B9>, <Cell Sheet.C9>))
# 遍历所有 方法二
>>> tuple(ws.columns)
((<Cell Sheet.A1>,
<Cell Sheet.A2>,
<Cell Sheet.A3>,
...
<Cell Sheet.B7>,
<Cell Sheet.B8>,
<Cell Sheet.B9>)