50 for i in range(1, get_num_of_days_in_month(year, month) + 1): 51 if i == 1: 52 print " " + " " * 5 * get_start_day(year, month) + "%d" % 1, 53 else: 54 print "%4d" % i, 55 if (get_start_day(year, month) + i - 1) % 7 == 6: 56 print 57 58 p...
import datetime def find_weeks(year): weeks = [] start_date = datetime.date(year, 1, 1) end_date = datetime.date(year, 12, 31) current_date = start_date while current_date <= end_date: week_number = current_date.isocalendar()[1] weeks.append(week_number) current_date += datetime...
importdatetimeasdtcurrent_time=dt.datetime.now()# 获取当前时间current_year=dt.datetime.now().year# 获取当前年份print(current_time)print(current_year) 2023-12-08 23:49:43.202130 2023 二、第三方模块 1、numpy 提供了高性能的多维数组对象,以及用于在这些数组上进行操作的工具。 importnumpyasnp...
print(“Current year is:”, datetime.date.today().strftime(“%Y”)) print(“Month of year is:”, datetime.date.today().strftime(“%B”)) print(“Week number of the year is:”, datetime.date.today().strftime(“%W”)) print(“Weekday of the week is:”, datetime.date.today().str...
year) 我们需要把格式转换为时间格式 df['datetime'] = pandas.to_datetime(df['datetime'], format = '%Y年%m月%d日%H:%M') del df['source'] # 对即将保存的格式进行调整 df = df[['from', 'title', 'content', 'keyword', 'datetime']] # 将整理好的数据储存Excel df.to_excel('news.xlsx...
pyenv local <version>-- automatically select whenever you are in the current directory (or its subdirectories) pyenv global <version>-- select globally for your user account E.g. to select the above-mentioned newly-installed Python 3.10.4 as your preferred version to use: ...
在金融投资组合中,其组成资产的回报取决于许多因素,如宏观和微观经济条件以及各种金融变量。随着因素数量的增加,建模投资组合行为所涉及的复杂性也在增加。鉴于计算资源是有限的,再加上时间限制,为新因素进行额外计算只会增加投资组合建模计算的瓶颈。一种用于降维的线性技术是主成分分析(PCA)。正如其名称所示,PCA 将...
If you find a bug that... causes Nodezator to crash; representing something malfunctioning or not working at all; ...then, please, usegithub issuesto submit an issue as soon as possible. Please, include as much information as you can: ...
}', rep)programing = [eval(k[0]) for k in data] # 编程语言dates = [i[1] for i in data]# 正则表达式处理 提取出想要的数据for x in range(len(dates)): name = programing[x] datas = re.findall(r'\[Date.UTC(.*?)\]', dates[x], re.DOTALL) for m in datas: date1 = re....
("updated", "yes") #新加一个属性 <year> upadta='yes'>2009</year> <year> upadta='yes'>2012</year> <year> upadta='yes'>2012</year> 28 29 30 tree.write("xmltest.xml") 31 32 # 删除node 33 for country in root.findall('country'): 34 rank = int(country.find('rank')....