def writedata(self,worksheet,data,size=4, length=121): for i in range(len(data)): # print(len(data[i])) if len(data[i]) >= size: count = 1 for j in range(size): for k in range(length): if k >= len(data[i][j]): worksheet.write((i + 1), count, 0) count += 1 else: worksheet.write((i + 1), count, data[i][j][k]) count += 1

这是一个Python的class中的一个函数（method），其作用是将给定的数据写入Excel表格中的指定工作表（worksheet）。其中的参数包括要写入的数据（data），每个单元格的大小（size）和表格的长度（length）。在函数体中，利用for循环遍历数据，将每个元素写入表格中的对应单元格。

相关问题

改进以下代码 def write_data_to_excel(self,data, targetfile): workbook = openpyxl.Workbook() try: worksheet = workbook.active for row_data in data: worksheet.append(row_data) workbook.save(targetfile) finally: workbook.close()

可以使用 "with" 语句来替代 "try-finally" 语句，这样可以更简洁地关闭 workbook。同时，可以将 workbook 创建的过程放在 try 语句块中，这样可以在出现异常时及时释放资源。改进后的代码如下：

def write_data_to_excel(self, data, targetfile):
    workbook = openpyxl.Workbook()
    try:
        worksheet = workbook.active
        for row_data in data:
            worksheet.append(row_data)
        with open(targetfile, 'wb') as file:
            workbook.save(file)
    finally:
        workbook.close()

其中，使用了 "with" 语句来打开文件并保存 workbook，这样可以自动关闭文件。同时，打开文件时使用了二进制模式 "wb"，以避免在不同操作系统上出现的换行符问题。

优化这段代码col = [8, 9, 10] name_list1 = ['bags', 'laundry'] name_list2 = ['outdoor_garden', 'toys'] name_list3 = ['media', 'monitors'] name_list4 = ['fashion', 'lighting'] if cate in name_list1: copydata(24, 3, worksheet, new_worksheet) elif cate in name_list2: copydata(25, 3, worksheet, new_worksheet) elif cate in name_list3: copydata(34, 3, worksheet, new_worksheet) elif cate in name_list4: copydata(57, 3, worksheet, new_worksheet) elif cate == "data_storage": copydata(10, 3, worksheet, new_worksheet) elif cate == "health": copydata(20, 3, worksheet, new_worksheet) elif cate == "sports_shoes": copydata(21, 3, worksheet, new_worksheet)

这是一个关于代码优化的问题，可以回答。可以将name_list1到name_list4合并成一个列表，然后使用index()方法查找cate在列表中的位置，再根据位置调用相应的copydata()函数。代码如下：

col = [8, 9, 10]
name_list = [['bags', 'laundry'], ['outdoor_garden', 'toys'], ['media', 'monitors'], ['fashion', 'lighting']]
cate_index = -1
for i in range(len(name_list)):
if cate in name_list[i]:
cate_index = i
break
if cate_index == 0:
copydata(24, 3, worksheet, new_worksheet)
elif cate_index == 1:
copydata(25, 3, worksheet, new_worksheet)
elif cate_index == 2:
copydata(34, 3, worksheet, new_worksheet)
elif cate_index == 3:
copydata(57, 3, worksheet, new_worksheet)
elif cate == "data_storage":
copydata(10, 3, worksheet, new_worksheet)
elif cate == "health":
copydata(20, 3, worksheet, new_worksheet)
elif cate == "sports_shoes":
copydata(21, 3, worksheet, new_worksheet)