1、python讀寫csv檔案

import csv

#讀取csv檔案內容方法1
csv_file = csv.reader(open('testdata.csv','r'))
next(csv_file,None)  #skip the headers
for user in csv_file:
  print(user)

#讀取csv檔案內容方法2
with open('testdata.csv','r') as csv_file:
  reader = csv.reader(csv_file)
  next(csv_file,None)
  for user in reader:
    print(user)

#從字典寫入csv檔案
dic = {'fengju':25,'wuxia':26}
csv_file = open('testdata1.csv','w',newline='')
writer = csv.writer(csv_file)
for key in dic:
  writer.writerow([key,dic[key]])
csv_file.close()  #close CSV file

csv_file1 = csv.reader(open('testdata1.csv','r'))
for user in csv_file1:
  print(user)

2、python讀寫excle檔案

　需要先用python pip命令安裝xlrd,xlwt庫~

import xlrd,xlwt  #xlwt只能寫入xls檔案

#讀取xlsx檔案內容
rows = []  #create an empty list to store rows
book = xlrd.open_workbook('testdata.xlsx') #open the Excel spreadsheet as workbook
sheet = book.sheet_by_index(0)  #get the first sheet
for user in range(1,sheet.nrows): #iterate 1 to maxrows
  rows.append(list(sheet.row_values(user,sheet.ncols))) #iterate through the sheet and get data from rows in list
print(rows)

#寫入xls檔案
rows1 = [['Name','Age'],['fengju','26'],['wuxia','25']]
book1 = xlwt.Workbook()  #create new book1 excle
sheet1 = book1.add_sheet('user')  #create new sheet
for i in range(0,3):  
  for j in range(0,len(rows1[i])):
    sheet1.write(i,j,rows1[i][j])
book1.save('testdata1.xls')  #sava as testdata1.xls

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。