python csv文件写操作

import csv
import time

def update_csv2():

for i in range(1):

k = open(r'D:\T60\x-ray_0523\Battery\Lot\201305\24\OK-NG-002\WORK_PRI            _20130419_00_2_log.csv', 'a')
writer=csv.writer(k)

writer.writerow(['6', 'OK', 'OK', 'OK', '1.108', '1.108', '1.108', '1.108', '1.108', '1.108', '1.108', '1.076', '1.043', '1.043', '1.043', '1.043', '1.011', '1.011', '1.043', '1.011', '1.011', '0.978', '0.978', '0.945', '0.978', '1.011', '1.011', '1.043', '1.141', '1.174', '1.174', '1.206', '1.174', '1.206', '0.945', '1.066', '0.068', '0.261', '1.956', '1.728', '1.304', '1.467', '19/04/2013', '20:42:54', 'SA3T11015100162'])
print i
time.sleep(1)

k.close()
def update_csv1():

for i in range(1):

k = open(r'D:\T60\x-ray_0523\Battery\Lot\201305\24\OK-NG-002\WORK_PRI            _20130419_00_1_log.csv', 'a')
writer=csv.writer(k)

writer.writerow(['SA3T11015100162', 6, 'OK', '1.108', '1.108', '1.108','1.108', '1.108', '1.108', '1.108', '1.076', '1.043', '1.043', '1.043', '1.043', '1.011', '1.011', '1.043', '1.011', '1.011', '0.978', '0.978', '0.945', '0.978', '1.011', '1.011', '1.043', '1.141', '1.174', '1.174', '1.206', '1.174', '1.956', '1.728', '1.304', '1.467','19/04/2013 20:42:54'])
print i
time.sleep(1)
k.close()

def update_test():
for i in range(10):

k = open(r'D:\T60\x-ray_0523\Battery\Lot\201305\24\OK-NG-002\test.csv', 'a')
writer=csv.writer(k)
print i

writer.writerow(['SA3T1102', '6', 'OK'])
time.sleep(0.5)

if __name__=="__main__":

update_test()