(12)-Python3之--openpyxl模块

from openpyxl import load_workbook
# 选择Excel表
wb = load_workbook(r‘E:\Users\Web_Core\xlstest.xlsx‘)
# 选择表单
sh = wb[‘Sheet1‘]
# 获取单元格的值，从1开始。
print(sh.cell(1,1).value)

结果：
A1

from openpyxl import load_workbook
# 选择Excel表
wb = load_workbook(r‘E:\Users\Web_Core\xlstest.xlsx‘)
# 选择表单
sh = wb[‘Sheet1‘]

# 写单元格的值
sh.cell(6,1).value = "二狗"
# 保存写入的数据 - 整个工作薄
wb.save(r‘E:\Users\Web_Core\xlstest.xlsx‘)

from openpyxl import load_workbook
# 选择Excel表
wb = load_workbook(r‘E:\Users\Web_Core\xlstest.xlsx‘)
# 选择表单
sh = wb[‘Sheet1‘]

rows = sh.max_row   # 总行数
print("总行数为：" + str(rows))
colums = sh.max_column  # 总列数
print("总列数为：" + str(colums))

结果：
总行数为：10
总列数为：4

from openpyxl import load_workbook

# 定义一个获取所有数据的函数
def read_all_data():
    wb = load_workbook(r"E:\Users\Web_Core\xlstest.xlsx")  # 打开Excel
    sh = wb[‘Sheet1‘]  # 获取表单
    cases = []  # 所有的cases用列表存放
    max_row = sh.max_row  # 获取最大行
    max_column = sh.max_column  # 获取最大列

   # 通过双循环获取所有数据
    for r in range(2, max_row + 1):  # 遍历行
        case = {}
        for j in range(1, max_column + 1):
            key = sh.cell(row=1, column=j).value  # 遍历列
            case[key] = sh.cell(row=r, column=j).value
        cases.append(case)  # 将一行数据放到列表

    wb.save(r"E:\Users\Web_Core\xlstest.xlsx")
    wb.close()
    return cases

# 调用函数，打印数据
all_data = read_all_data()
print(all_data)

结果：
[{‘D1‘: ‘D2‘, ‘C1‘: ‘C2‘, ‘B1‘: ‘B2‘, ‘A1‘: ‘A2‘}, {‘D1‘: ‘D3‘, ‘C1‘: ‘C3‘, ‘B1‘: ‘B3‘, ‘A1‘: ‘A3‘},
 {‘D1‘: ‘D4‘, ‘C1‘: ‘C4‘, ‘B1‘: ‘B4‘, ‘A1‘: ‘A4‘}, {‘D1‘: ‘D5‘, ‘C1‘: ‘C5‘, ‘B1‘: ‘B5‘, ‘A1‘: ‘A5‘},
 {‘D1‘: ‘D6‘, ‘C1‘: ‘C6‘, ‘B1‘: ‘B6‘, ‘A1‘: ‘二狗‘}, {‘D1‘: ‘D7‘, ‘C1‘: ‘C7‘, ‘B1‘: ‘B7‘, ‘A1‘: ‘A7‘}, 
 {‘D1‘: ‘D8‘, ‘C1‘: ‘C8‘, ‘B1‘: ‘B8‘, ‘A1‘: ‘A8‘}, {‘D1‘: ‘D9‘, ‘C1‘: ‘C9‘, ‘B1‘: ‘B9‘, ‘A1‘: ‘A9‘}, 
 {‘D1‘: ‘D10‘, ‘C1‘: ‘C10‘, ‘B1‘: ‘B10‘, ‘A1‘: ‘A10‘}]