python寫入EXCEL單元格範圍（NumPy？）

Question

我想寫一個用NumPy編寫的矩陣到EXCEL文件。我需要指定一個必須寫入矩陣的單元格範圍。

我需要將矩陣寫入EXCEL文件的工作表4中的單元格A4：Z512。

現在，標準EXCEL文件有3張紙，所以我需要先添加第4張紙然後再寫入矩陣。

有沒有辦法在python 2.7中做到這一點？是否可以用純NumPy做到這一點？

Answer 1

我還沒有使用NumPy，所以我不確定你是否可以操縱excel文件。但爲了處理excel文件，我推薦使用win32com庫。以下是我過去使用win32com API的一些代碼。隨意使用自己的代碼。希望這可以幫助！

import win32com.client as win32 

excel = win32.gencache.EnsureDispatch('Excel.Application') 

def openExcel(makeExcelVisible=True): 
    excel.Visible = makeExcelVisible 

def closeExcel(): 
    excel.Application.Quit() 

class ExcelFile(object): 
# opens up a workbook to work on, not selecting a file name creates a new one 
    def __init__(self, fileName=None): 
     if fileName == None: 
      self.wb = excel.Workbooks.Add() 
     else: 
      self.wb = excel.Workbooks.Open(fileName) 
     self.ws = None 

    def addWorksheet(self): 
    # adds a new worksheet to the workbook and makes it the current worksheet 
     self.ws = self.wb.Worksheets.Add() 

    def selectWorksheet(self, worksheetName): 
    # selects a worksheet to work on 
     self.ws = self.wb.Worksheets(worksheetName) 

    def renameWorksheet(self, worksheetName): 
    # renames current worksheet 
     self.ws.Name = worksheetName 

    def save(self): 
    # saves the workbook 
     self.wb.Save() 

    def saveAs(self, fileName): 
    # saves the workbook with the file name 
     self.wb.SaveAs(fileName) 

    def close(self): 
    # closes the workbook 
     self.wb.Close() 

    def insertIntoCell(self, cellRow, cellCol, data): 
     self.ws.Cells(cellRow,cellCol).Value = data 

    def clearCell(self, cellRow, cellCol): 
     self.ws.Cells(cellRow,cellCol).Value = None 

以下是如何使用上述代碼的示例。它創建一個新的excel文件，重命名工作表，將信息添加到每個工作表的第一個單元格中，並將該文件保存爲「test.xlsx」。默認保存位置是您的主目錄。

worksheets = ["Servers", "Printers", "Drives", "IT Phones"] 
information = ["Server WS", "Printer WS", "Driver WS", "IT Phone WS"] 

def changeCells(information): 
    excelFile = ExcelFile() 
    for index in xrange(len(worksheets)): 
     sheetNumber = index + 1 
     if sheetNumber == 4: 
      excelFile.addWorksheet() 
     excelFile.selectWorksheet("Sheet%d" % sheetNumber) 
     excelFile.renameWorksheet(worksheets[index]) 
     excelFile.insertIntoCell(1,1,information[index]) 
    excelFile.saveAs("test.xlsx") 
    excelFile.close() 

openExcel() 
changeCells(information) 
closeExcel() 

此外，我建議您自己查看win32com的API。這是一個非常好的和有用的圖書館。

我把在Sheet4上輸入矩陣的實際代碼放到A4上：Z512。

def addMatrix(matrix): 
    # use ExcelFile("fileName.xlsx") if you need to add to a specific file 
    excelFile = ExcelFile() 
    excelFile.addWorksheet() 
    # default excel files only have 3 sheets so had to add one 
    excelFile.selectWorksheet("Sheet4") 
    # xrange(4,513) since end index is exclusive 
    for row in xrange(4,513): 
     # 1 for A, 26 for Z 
     for col in xrange(1,27): 
      mRow = row - 4 
      mCol = col - 1 
      excelFile.insertIntoCell(row, col, matrix[mRow][mCol]) 
    excelFile.saveAs("test.xlsx") 
    excelFile.close() 

matrix = list() 
for row in xrange(509): 
    matrix.append([]) 
    for col in xrange(26): 
     matrix[row].append(0) 
# the matrix is now filled with zeros 

# use openExcel(False) to run faster, it won't open a window while running 
openExcel() 
addMatrix(matrix) 
closeExcel()