<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[li_qingfeng的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/li_qingfeng</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; li_qingfeng]]></copyright><item><title><![CDATA[python类似列表的str转换为list]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/110952894</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/110952894</guid><author>li_qingfeng</author><pubDate>Thu, 10 Dec 2020 14:55:20 +0800</pubDate><description><![CDATA[以此为例：
   dataStore = ["CF$43292419760722083X_431126290063872$蒋先辉$431126290063872$宁远县交管大队$2020-12-04$2021-12-03","CF$431121199009193435_431124290049852$杨鹏杰$431124290049852$道县交警大队$2020-12-04$2021-12-03","CF$432926197112084437_431129290035435$陈亮标$4311292900..]]></description><category></category></item><item><title><![CDATA[13位时间戳转换为时间格式 excel表格读取时间戳转换为时间格式]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/107494615</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/107494615</guid><author>li_qingfeng</author><pubDate>Tue, 21 Jul 2020 17:53:15 +0800</pubDate><description><![CDATA[13位时间戳转换为时间格式
import time

timeArray = 1542297599000
timeArray = time.localtime(int(str(timeArray)[:10:]))
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
print(otherStyleTime)

运行结果：





excel表格读取时间戳并转换为时间格式


from xlrd import xldate_as...]]></description><category></category></item><item><title><![CDATA[python存储json 读取json]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/98213498</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/98213498</guid><author>li_qingfeng</author><pubDate>Fri, 02 Aug 2019 17:13:23 +0800</pubDate><description><![CDATA[存储json文件，逐条按行存储
  with open('xxx.json', 'a+', encoding='utf8')as f:
    json.dump(temp, f, ensure_ascii=False)
    f.write('\n')



读取json文件，逐条按行读取


with open('xxx.json', 'r', encoding='ut...]]></description><category></category></item><item><title><![CDATA[企业信用代码正则筛选]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/90294381</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/90294381</guid><author>li_qingfeng</author><pubDate>Fri, 17 May 2019 15:39:18 +0800</pubDate><description><![CDATA[re.findall(r'[1-9A-Z]{1}[1239]{1}[1-9]{1}[0-9]{5}[0-9A-Z]{10}', F_ShehuiXinYongCode)[0] 
if len(re.findall(r'[1-9A-GY]{1}[1239]{1}[1-9]{1}[0-9]{5}[0-9A-Z]{10}', F_ShehuiXinYongCode)) &gt; 0 else ''

...]]></description><category></category></item><item><title><![CDATA[python json和csv文件存储]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/90268903</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/90268903</guid><author>li_qingfeng</author><pubDate>Thu, 16 May 2019 18:04:07 +0800</pubDate><description><![CDATA[存储json文件，逐条按行存储
  with open('xxx.json', 'a+', encoding='utf8')as f:
    json.dump(temp, f, ensure_ascii=False)
    f.write('\n')



存储csv文件


    with codecs.open(file_name, 'a+', encoding...]]></description><category></category></item><item><title><![CDATA[python 取整法（进一取值）]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/90266432</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/90266432</guid><author>li_qingfeng</author><pubDate>Thu, 16 May 2019 16:30:16 +0800</pubDate><description><![CDATA[import math

a = 3 / 2
print(a,type(a))
a = math.ceil(a)
print(a,type(a))



输出结果：


]]></description><category></category></item><item><title><![CDATA[python 科学计数法]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/90265786</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/90265786</guid><author>li_qingfeng</author><pubDate>Thu, 16 May 2019 16:10:53 +0800</pubDate><description><![CDATA[import numpy as np

a = '111111111111111111111111111111111111111'
np.set_printoptions(suppress=True)
x = np.array(a)
b = float(a)
print(a)
print(x,type(x))
print(b,type(b))



输出结果：


]]></description><category></category></item><item><title><![CDATA[python创建文件夹，有则pass,无则创建]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/90258479</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/90258479</guid><author>li_qingfeng</author><pubDate>Thu, 16 May 2019 10:42:18 +0800</pubDate><description><![CDATA[file_name = '文件路径/文件名称"

print(file_name)

download_path = os.path.split(file_name)[0]
if os.path.isdir(download_path):
 pass
else:
 os.mkdir(download_path)
]]></description><category></category></item><item><title><![CDATA[无头浏览器]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/84990912</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/84990912</guid><author>li_qingfeng</author><pubDate>Thu, 13 Dec 2018 16:35:59 +0800</pubDate><description><![CDATA[options = webdriver.ChromeOptions()

options.set_headless()

driver = webdriver.Chrome(chrome_options=options)]]></description><category></category></item><item><title><![CDATA[requests请求时data需要指定是字符串类型]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/80775303</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/80775303</guid><author>li_qingfeng</author><pubDate>Fri, 22 Jun 2018 16:21:16 +0800</pubDate><description><![CDATA[正常请求不返回数据，给data指定成Str后就可以了！！！]]></description><category></category></item><item><title><![CDATA[Python 定位div 下拉框 Python遍历div且选中想要的值点击跳出]]></title><link>https://blog.youkuaiyun.com/li_qingfeng/article/details/80775187</link><guid>https://blog.youkuaiyun.com/li_qingfeng/article/details/80775187</guid><author>li_qingfeng</author><pubDate>Fri, 22 Jun 2018 16:12:35 +0800</pubDate><description><![CDATA[飞猪机票选中地址操作！！！  小白欢迎指正]]></description><category></category></item></channel></rss>