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Openpyxl基础操作

Openpyxl基础操作

作者: 吕沐枫 | 来源:发表于2021-05-18 16:11 被阅读0次

    创建工作簿

    from openpyxl as xl
    # 实例化
    wb = xl.WorkBook()
    # 激活worksheet
    ws = wb.active
    

    读取

    from openpyxl as xl
    wb = xl.load_workbook('file_path')
    # sheet的列表,工作簿中所有的工作表,返回**列表**
    list_ws = wb.sheetnames
    # 读取表格
    ws = wb['Sheet']
    # 获取表格最大行
    row = ws.max_row
    # 获取表格最大列
    column = ws.max_column
    

    创建表格

    # 在最后插入表格
    ws1 = wb.create_sheet('MySheet')
    # 在指定位置插入表格
    ws2 = wb.create_sheet("MySheet", 1) # 1是重左往右第二张表,根据列表的索引位置
    

    访问

    # 单一单元格访问
    c = ws['A1'].value
    d = ws.cell(row=4, column=2).value
    
    # 多单元访问
    cs = ws['A1': 'C2']
    for i in cs:
        print(i.value)
    
    cs1 = ws['A']  #访问列
    for i in cs1:
        print(i.value)
    
    cs2 = ws[10]  #访问行,范围是1到max_column
    for i in cs2:
        print(i.value)
    
    # 指定行列
    for i in ws.iter_cols(min_row=1, max_col=3, max_row=3, min_col=2):
        for j in i:
            print(j)
    --------------------------------------------
    <Cell 'Sheet'.B1>
    <Cell 'Sheet'.B2>
    <Cell 'Sheet'.B3>
    <Cell 'Sheet'.C1>
    <Cell 'Sheet'.C2>
    <Cell 'Sheet'.C3>
    ---------------------------------------------
    
    for i in ws.iter_rows(min_row=1, max_col=3, max_row=3, min_col=2):
        for j in i:
            print(j)
    ----------------------------------------------
    <Cell 'Sheet'.B1>
    <Cell 'Sheet'.C1>
    <Cell 'Sheet'.B2>
    <Cell 'Sheet'.C2>
    <Cell 'Sheet'.B3>
    <Cell 'Sheet'.C3>
    -----------------------------------------------
    
    # 遍历所有
    tuple(ws.rows)
    ------------------------------------------------
    ((<Cell 'Sheet'.A1>, <Cell 'Sheet'.B1>, <Cell 'Sheet'.C1>),
     (<Cell 'Sheet'.A2>, <Cell 'Sheet'.B2>, <Cell 'Sheet'.C2>),
     (<Cell 'Sheet'.A3>, <Cell 'Sheet'.B3>, <Cell 'Sheet'.C3>))
    -------------------------------------------------
    
    for i in ws.rows:
        for j in i:
            print(j)
    -----------------------------------------------------
    <Cell 'Sheet'.A1>
    <Cell 'Sheet'.B1>
    <Cell 'Sheet'.C1>
    <Cell 'Sheet'.A2>
    <Cell 'Sheet'.B2>
    <Cell 'Sheet'.C2>
    <Cell 'Sheet'.A3>
    <Cell 'Sheet'.B3>
    <Cell 'Sheet'.C3>
    ---------------------------------------------------
    
    tuple(ws.columns)
    ------------------------------------------------
    ((<Cell 'Sheet'.A1>, <Cell 'Sheet'.A2>, <Cell 'Sheet'.A3>),
     (<Cell 'Sheet'.B1>, <Cell 'Sheet'.B2>, <Cell 'Sheet'.B3>),
     (<Cell 'Sheet'.C1>, <Cell 'Sheet'.C2>, <Cell 'Sheet'.C3>))
    -------------------------------------------------
    
    for i in ws.columns:
        for j in i:
            print(j)
    --------------------------------------------------
    <Cell 'Sheet'.A1>
    <Cell 'Sheet'.A2>
    <Cell 'Sheet'.A3>
    <Cell 'Sheet'.B1>
    <Cell 'Sheet'.B2>
    <Cell 'Sheet'.B3>
    <Cell 'Sheet'.C1>
    <Cell 'Sheet'.C2>
    <Cell 'Sheet'.C3>
    --------------------------------------------------
    
    for i in range(1, ws.max_row):
        for j in range(1, ws.max_column):
            print(ws.cell(i, j))
    -------------------------------------------------
    <Cell 'Sheet'.A1>
    <Cell 'Sheet'.B1>
    <Cell 'Sheet'.A2>
    <Cell 'Sheet'.B2>
    --------------------------------------------------
    

    行列的插入与删除

    列插入

    # 插入单列
    ws.insert_cols(idx=2)  # 在第二列(B)的位置插入一空白列
    
    # 插入多列
    ws.insert_cols(idx=2, amount=5) # 在第二列(B)的位置插入五空白列
    

    行插入

    # 插入单行
    ws.insert_rows(idx=2)  # 在第二行的位置插入一空白行 
    
    # 插入多行
    ws.insert_rows(idx=2, amount=4) # 在第二行的位置插入4空白行
    

    删除

    ws.delete_rows(idx=2, amount=4)  # 删除多行
    ws.delete_cols(idx=2, amount=5) # 删除多列
    
    ps: 删除是注意要拆解合并单元格
    

    移动范围数据

    可以理解为以单元格A1为原点,箭头向右为y轴,箭头向下为x轴,
    参数rows代表x轴的方向距离,参数cols代表y轴上的方向距离

    ws.move_range('C1:D2', rows=3, cols=-2)  
    # 将c1:d2的数内容向下移动3个单元格,向左移动2个单元格
    

    字母与数字的相互转换

    from openpyxl.utils improt get_column_letter, column_index_from_string
    # 数字转字母
    print(get_column_letter(2))  #B
    # 字母转数字
    print(column_index_from_string('D')) #4
    

    删除工作表

    del wb['Sheet']
    

    矩阵置换

    rows = [
        ['Number', 'data1', 'data2'],
        [2, 40, 30],
        [3, 40, 25],
        [4, 50, 30],
        [5, 30, 10],
        [6, 25, 5],
        [7, 50, 10]]
    list(zip(*rows))
    ------------------------------------------------------------------------
    [('Number', 2, 3, 4, 5, 6, 7),
     ('data1', 40, 40, 50, 30, 25, 50),
     ('data2', 30, 25, 30, 10, 5, 10)]
    ------------------------------------------------------------------------
    
    rows = [
      ['Number', 'data1', 'data2'],
      [2, 40  ], # 这里少一个数据
      [3, 40, 25],
      [4, 50, 30],
      [5, 30, 10],
      [6, 25, 5],
      [7, 50, 10],
    ]
    list(zip(*(rows)))
    -----------------------------------------------------------------------------------------------
    [('Number', 2, 3, 4, 5, 6, 7), ('data1', 40, 40, 50, 30, 25, 50)]
    -----------------------------------------------------------------------------------------------
    

    设置单元格样式

    字体

    # 指定了等线(name)24号(size),加粗斜体(blod),字体颜色红色(color)。直接使用cell的font属性,将Font对象赋值给它
    from openpyxl.styles import Font
    bold_itatic_24_font = Font(name='等线', size=24, italic=True, color=colors.RED, bold=True)
    sheet['A1'].font = bold_itatic_24_font
    

    对齐方式

    • 水平对齐: distributed, justify, center, left, fill, centerContinuous, right, general
    • 垂直对齐: bottom, distributed, justify, center, top
    # 直接使用cell的属性aligment,这里指定垂直(vertical)居中和水平(horizontal)居中。除了center,还可以使用right、left等等参数
    sheet['B1'].alignment = Alignment(horizontal='center', vertical='center', text_rotation=45, wrap_text=True)
    # text_rotation表示字体倾斜度,wrap_text表格是否自动换行
    

    行高,列宽

    # 第2行行高
    sheet.row_dimensions[2].height = 40
    # C列列宽
    sheet.column_dimensions['C'].width = 30
    

    设置边框样式

    from openpyxl.styles import Side, Border
    side = Side(style='thin', color='FF0000')
    border = Border(left=side, right=side, top=side, bottom=side)
    ws.cell(row=1, column=2).border = border
    

    合并,拆分单元格

    # 合并单元格, 往左上角写入数据即可
    sheet.merge_cells('B1:G1')  # 合并一行中的几个单元格
    sheet.merge_cells('A1:C3')  # 合并一个矩形区域中的单元格
    
    sheet.unmerge_cells('A1:C3')  #拆分单元格
    

    单元格背景色

    from openpyxl.styles import PatternFill
    fille = PatternFill('solid', fgColor='ffffff')  # 设置填充颜色为 橙色
    sheet1.cell(row=2, column=8).fill = fille  # 序列
    

    渐变单元格样式填充

    from openpyxl.styles import GradientFill
    gradient_fill = GradientFill(stop=('FFFFFF', '99ccff', '000000'))
    ws.cell(row=1, column=2).fill = grandient_fill
    

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