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