Python csv模塊使用方法代碼實(shí)例

import csv
def openSCV(filename):
  with open("renting.csv",'r',encoding = 'utf_8_sig') as f:
    f_csv = csv.reader(f)
    for row in f_csv:
      print(row)
def Test1():
  headers = ['ID','NAME','Age','Height']
  #表格內(nèi)容
  rows = [('1','LiLi',18,165),('2','Jack',20,170),('3','Marry',21,168)]
  with open('test1.csv','w',encoding='utf_8_sig') as csvfile:
    spamwriter = csv.writer(csvfile)
    spamwriter.writerow(headers)
    spamwriter.writerows(rows)
def writeDict():
  with open('test2.csv','w') as csvfile:
    #創(chuàng)建字段名
    fieldnames = ['first_name','last_time']
    #創(chuàng)建字段寫(xiě)入對(duì)象
    writer = csv.DictWriter(csvfile,fieldnames=fieldnames)
    writer.writeheader()
    #寫(xiě)入表格內(nèi)容
    writer.writerow({'first_name':'Baked','last_time':'Beans'})
    writer.writerow({'first_name': 'Baked', 'last_time': 'Beans'})
    writer.writerow({'first_name': 'Baked', 'last_time': 'Beans'})
def readDict():
  with open('test2.csv','r') as csvfile:
    #讀取文件
    reader = csv.DictReader(csvfile)
    #遍歷輸入指定字段的內(nèi)容
    for row in reader:
      print(row['first_name'],row['last_time'])
if __name__ == '__main__':
  Test1()
  writeDict()
  readDict()