如何用Python替换多个Excel表格中的单元格内容？

Question

我有一个Excel工作表，包含不同的单位值，如“百”和“千”。

现在，我想所有的“千”改为“百”，这意味着原单单元格的值将[单元]倍10

我用VBA解决了这个问题，我想知道如何使用Python解决这个问题？

VBA这样的：

Sub changecell() 
Dim rng As Range 
Dim i, t 
Set rng = Sheet1.Range("b3:c5") 
For Each i In rng 
    t = t + 1 
    If Not i Is Nothing Then 
     If Right(i, 4) = "sand" Then 
     rng(t) = Left(i, Len(i) - 8) * 10 & "hundred" 
     End If 
    End If 
Next 
End Sub 

如何使用Python替换这些[细胞来自多Excel表？

Answer 1

保存您的Excel工作表以csv文件，那就试试这个：

import csv 


with open('path_name_to_new_file', 'w', newline='') as newfile: 
    with open('path_name_to_original_file', newline='') as original: 
     writer = csv.writer(newfile, delimiter=',') 
     reader = csv.reader(original, delimiter=',') 
     for row in reader: 
      row[1] = row[1] * 10 
      row[2] = row[2] * 10 
      writer.writerow(row) 

编辑：

所以，你有数以百计的Excel文件...而不是所有列。非测试代码：

import pandas 

def test(cell): 
    t = str(cell).split(' ') 
    t = t[1] if len(t[1]) = 2 else None 
    if t == 'thousand': 
     return float(cell)*10 
    else: 
     return cell 

excel_file_names = [##make a list of your file names##] 
for file in excel_file_names: 
    df = pandas.read_excel(file) 
    for index,row in df.iterrows(): 
     row['2016'] = test(row['2016']) 
     row['2015'] = test(row['2015']) 

    writer = pd.ExcelWriter() 
    df.to_excel(writer,'Sheet1') 
    writer.save(file + '_modified') 

Answer 2

如果您需要做的是在Python中使用熊猫

但这VBA将在当前工作簿中的所有表进行更换：

---

Option Explicit 

Public Sub GlobalReplaceThousandToHundred() 
    Dim ws As Worksheet, ur As Variant, r As Long, c As Long, sz As Long 

    Const STR1 = "thousand" 
    Const STR2 = "hundred" 

    sz = Len(STR1) 

    For Each ws In ThisWorkbook.Worksheets 
     ur = ws.UsedRange 
     For r = LBound(ur) To UBound(ur) 
      For c = LBound(ur, 2) To UBound(ur, 2) 
       If Not IsError(ur(r, c)) Then 
        If LCase(Right(ur(r, c), sz)) = STR1 Then 
         ur(r, c) = Left(ur(r, c), Len(ur(r, c)) - sz) & STR2 
        End If 
       End If 
      Next 
     Next 
     ws.UsedRange = ur 
    Next 
End Sub 

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