前言

大家见识了各种各样的爬虫项目，也许大家会看腻了，今天为各位介绍一个简单读写python中文文件的几段代码，有可能大家会用到，也许不会，不过能学习新的东西是一件很好的事情，万一要用到了呢?

好了，各位看官，估计都等急，那我就直接上代码吧

首先导入库

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)],
]

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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)

是不是步骤分明呢？大家可以来看看那，一起共同学习进步