FilesExpand file tree

 master

/

python_csv.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

55 lines (47 loc) · 1.48 KB

 master

/

python_csv.py

Copy path

Top

File metadata and controls

• Code
• Blame

55 lines (47 loc) · 1.48 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

# _*_ coding: utf-8 _*_

"""

python_csv.py by xianhu

"""

import csv

import datetime

# 数据

data = [

[1, "a,bc", 19.353, datetime.datetime(2001, 3, 17)],

[2, "ei,f", 13.287, datetime.datetime(2011, 4, 27)],

[3, 'q"ij', 15.852, datetime.datetime(2003, 7, 14)],

[4, "zh'n", 11.937, datetime.datetime(2012, 1, 9)],

[5, "i'op", 12.057, datetime.datetime(2009, 5, 18)],

]

# 自己创建dialect

csv.register_dialect(

"mydialect",

delimiter=',', # 字段分隔符

escapechar='\\', # 转义字符

quotechar='"', # 包裹字符

doublequote=False, # 使转义字符生效

lineterminator='\n', # 行与行之间的分隔符

quoting=csv.QUOTE_ALL # 包裹模式

)

# 写文件

with open("test.csv", "w") as file:

writer = csv.writer(file, dialect="mydialect")

# writer.writerows(data)

for item in data:

writer.writerow(item)

exit()

# 读文件

with open("test.csv", "r") as file:

reader = csv.reader(file, dialect="excel")

for item in reader:

print(item)

# 读文件

with open("test.csv", "r") as file:

reader = csv.DictReader(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")

data = [item for item in reader]

print(data)

# 写文件

with open("test.csv", "w") as file:

writer = csv.DictWriter(file, fieldnames=["id", "name", "float", "datetime"], dialect="excel")

writer.writeheader()

for item in data:

writer.writerow(item)