Example 1: Python Add Years to Date main.py from datetime import datetime from dateutil.relativedelta import relativedelta # Get Random Date myDateString = "2022-06-01" myDate = datetime.strptime(myDateString, "%Y-%m-%d") addYearNumber = 2; newDate = myDate + relativedelta(years=addYear...
Bothtimedeltaandrelativedeltaclasses can be used to add a duration of time to yourdatetimeobject. Thetimedeltaclass is limited to adding weeks to your date, whilerelativedeltacan also add months and years. In fact, you can userelativedeltato add days and weeks as well. But most people prefertim...
和MySQL的date_add是一样的,给出列表均已测试: 代码使用展示: SELECT addYears(toDate('2022-07-13 14:28:33'),1) AS time 1. 2. 3.subtract减去时间 和add是一样的,故不作表格展示,展示代码用法: SELECT subtractYears(toDate('2022-07-13 14:28:33'),1) AS time 1. 2. 4.时间差值 dateDiff...
df=pd.read_csv('https://raw.githubusercontent.com/selva86/datasets/master/a10.csv',parse_dates=['date'],index_col='date')df.reset_index(inplace=True)# Prepare data df['year']=[d.yearfordindf.date]df['month']=[d.strftime('%b')fordindf.date]years=df['year'].unique()# Prep ...
//stackoverflow.com/questions/36470343/how-to-draw-a-line-with-matplotlib/36479941 def newline(p1, p2, color='black'): ax = plt.gca() l = mlines.Line2D([p1[0],p2[0]],[p1[1],p2[1]], color='red'if p1[1]-p2[1]>0else'green', marker='o', markersize=6) ax.add_line(l...
unique.add('CAT') # 添加元素 unique.remove('YHOO') # 删除元素 s1 = { 'a', 'b', 'c'} s2 = { 'c', 'd' } s1 | s2 # 取合集 { 'a', 'b', 'c', 'd' } s1 & s2 # 取交集 { 'c' } s1 - s2 # s1中存在,s2中不存在 { 'a', 'b' } ...
TODAY = date.today().strftime("%Y-%m-%d") st.title('Stock Forecast App') stocks = ('MSFT',"TSLA",'GOOG','AAPL',"NVDA") selected_stock = st.selectbox('Select dataset for prediction', stocks) n_years = st.slider('Years of prediction...
import plotly.graph_objects as goimport numpy as npimport pandas as pd# 读取数据temp = pd.read_csv('2016-weather-data-seattle.csv')# 数据处理, 时间格式转换temp['year'] = pd.to_datetime(temp['Date']).dt.year# 选择几年的数据展示即可year_list = [1950, 1960, 1970, 1980, 1990, 2000...
expiration_date = expiration_date def process_payment(self, amount): # 处理信用卡支付逻辑 ... # 当需要添加新的支付方式(如PayPal)时,只需创建一个新的子类,无需修改现有的PaymentMethod类 class PayPal(PaymentMethod): def __init__(self, access_token): self.access_token = access_token def ...
提示图中报错,请进入 /usr/bin/yum 、/usr/libexec/urlgrabber-ext-down 文件中的第一行为#!/usr/bin/python2.7 即可解决 命令:vi /usr/bin/yum 、vi /usr/libexec/urlgrabber-ext-down 然后输入字母 i 进入编辑模式; 修改好后,按左上角esc键,并输入 :wq (注意有冒号)后回车即可,如图: ...