如何在循环中访问元组的值？

Question

我正在尝试制作一个可以从Excel工作表中读取值并计算给定运算符的答案的计算器。我想不出一种写它的方式，这样它就可以访问存储在元组中的值，而该元组正在以[

的形式读取单元格值

代码：

def excel_math(filename):

from openpyxl import load_workbook
wb = load_workbook(filename)
ws = wb.active
for row in ws.rows:
    operator = row[0].value
    nums = row[1:]
    if operator == '+':
        subtotal = int(nums[0])
        for numcell in nums[1:]:
            subtotal += int(nums)
        print(subtotal)

Answer 1

def excel_math(filename):

from openpyxl import load_workbook
wb = load_workbook(filename)
ws = wb.active
for row in ws.rows:
    operator = row[0]
    nums = row[1:]
    if operator == '+':
        subtotal = int(nums[0])
        for numcell in nums:
            subtotal += int(numcell)
        print(subtotal)

我认为这应该起作用

Answer 2

openpyxl和Python为此类任务提供了几个方便的功能。首先，您只应将相关代码放入函数中，因此您可能需要一个单独的函数来传递工作表。

def row_summer(ws):
    for row in ws.iter_rows(values_only=True):
        op, *values = row
        if op == "+":
             return sum(values)