['city', 'password', 'day']
['1', '1', '1']
['2', '1', '1']
['3', '1', '1']
['4', '1', '1']
['5', '1', '1']
import csv
#開啟乙個csv檔案,模式為讀取
csvfile = open('/users/yanghui/study/python/example.csv','r')
#定義乙個變數,進行讀取
readcsv = csv.reader(csvfile)
print(readcsv)
for row in readcsv:
print(row)
readcsv = csv.reader(csvfile)
rows = [row for row in readcsv]
print(rows[0][1])
readcsv = csv.reader(csvfile)
for i,rows in enumerate(readcsv):
if i == 0:
row = rows
print(rows[1])
readcsv = csv.reader(csvfile)
list1 =
list2 =
list3 =
for row in readcsv:
print(list1)
print(list2)
print(list3)
1寫入csv檔案import
csv2
#開啟檔案,用with開啟可以不用去特意關閉file了,python3不支援file()開啟檔案,只能用open()
3 with open("
***.csv
","r
",encoding="
utf-8
") as csvfile:4#
讀取csv檔案,返回的是迭代型別
5 read =csv.reader(csvfile)
6for i in
read:
7print(i)
import csv
#開啟乙個csv檔案,模式為寫,如果沒有該檔案,則建立乙個
with open('/users/yanghui/study/python/test.csv','a') as csvfile:
#定義乙個寫變數
writecsv = csv.writer(csvfile)
writecsv.writerow(['index','yanghui','18'])
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