在excel文件中写入的Python程序仅写最后一行

Question

我已经安装了openpyxl模块，现在我正在尝试将一些数据写入excel文件中，以这样的方式在一个工作表中填充excel文件：

["01/01/2016", "05:00:00", 3]进入第1行A、B、C列

["01/02/2016", "06:00:00", 4]进入第2行，A、B、C列

["01/03/2016", "07:00:00", 5]进入第3行，A、B、C列

["01/04/2016", "08:00:00", 6]进入第4行，A、B、C列

["01/05/2016", "09:00:00", 7]进入第5行，A、B、C列

当我尝试运行代码时，我获得了以下结果：

• 第1行，A- 01/05/2016栏
• 第1行，B- 09:00:00
• 第1行，C-7栏

代码：

import os, sys
from openpyxl import Workbook
from datetime import datetime

dt = datetime.now()

list_values = [["01/01/2016", "05:00:00", 3],
              ["01/02/2016", "06:00:00", 4],
              ["01/03/2016", "07:00:00", 5],
              ["01/04/2016", "08:00:00", 6],
              ["01/05/2016", "09:00:00", 7]]

wb = Workbook()
sheet = wb.active
sheet.title = "Data"

row = 1
sheet['A' + str(row)] = "Date"
sheet['B' + str(row)] = "Hour"
sheet['C' + str(row)] = "Value"

for item in list_values:
    sheet['A' + str(row)] = item[0]
    sheet['B' + str(row)] = item[1]
    sheet['C' + str(row)] = item[2]
    row =+ 1

filename = 'Book_3.xlsx'
os.chdir(sys.path[0])
os.system('start excel.exe "%s\\%s"' %(sys.path[0], filename,))

结果：

​

Answer 1

你用的是=+而不是+=。下面的代码应该可以工作。我还将sys.path更改为os.getcwd()，后者写入当前工作目录。还添加了wb.save，因为其他代码没有产生输出。

import os, sys
from openpyxl import Workbook
from datetime import datetime

dt = datetime.now()

list_values = [["01/01/2016", "05:00:00", 3],
              ["01/02/2016", "06:00:00", 4],
              ["01/03/2016", "07:00:00", 5],
              ["01/04/2016", "08:00:00", 6],
              ["01/05/2016", "09:00:00", 7]]

wb = Workbook()
sheet = wb.active
sheet.title = "Data"

row = 1
sheet['A' + str(row)] = "Date"
sheet['B' + str(row)] = "Hour"
sheet['C' + str(row)] = "Value"

for item in list_values:
    sheet['A' + str(row)] = item[0]
    sheet['B' + str(row)] = item[1]
    sheet['C' + str(row)] = item[2]
    row += 1


dest_filename = 'Book_3.xlsx'
wb.save(filename = dest_filename)
os.chdir(os.getcwd())
os.system('start excel.exe "%s\\%s"' %(os.getcwd(), filename,))