python 获取前三天 的日期
时间: 2023-08-18 19:24:54 浏览: 43
以下是获取前三天日期的 Python 代码:
```python
from datetime import datetime, timedelta
today = datetime.today()
three_days_ago = today - timedelta(days=3)
print("Today's date:", today.strftime('%Y-%m-%d'))
print("Three days ago:", three_days_ago.strftime('%Y-%m-%d'))
```
这段代码会输出今天的日期和三天前的日期,格式为 `YYYY-MM-DD`。如果你需要前三天的日期列表,可以使用一个循环来生成日期列表,具体代码如下:
```python
from datetime import datetime, timedelta
today = datetime.today()
date_list = []
for i in range(1, 4):
date = today - timedelta(days=i)
date_list.append(date.strftime('%Y-%m-%d'))
print("Date list:", date_list)
```
这段代码会输出前三天的日期列表,格式为 `['YYYY-MM-DD', 'YYYY-MM-DD', 'YYYY-MM-DD']`。
相关问题
Python获取最近三月,五周,七天
获取最近三个月的日期可以使用Python的datetime和timedelta模块,具体代码如下:
```python
import datetime
today = datetime.date.today()
three_months_ago = today - datetime.timedelta(days=3*30)
print("最近三个月的日期:")
while today > three_months_ago:
print(today)
today -= datetime.timedelta(days=1)
```
获取最近五周的日期可以使用Python的datetime和timedelta模块,具体代码如下:
```python
import datetime
today = datetime.date.today()
five_weeks_ago = today - datetime.timedelta(weeks=5)
print("最近五周的日期:")
while today > five_weeks_ago:
print(today)
today -= datetime.timedelta(days=7)
```
获取最近七天的日期可以使用Python的datetime和timedelta模块,具体代码如下:
```python
import datetime
today = datetime.date.today()
seven_days_ago = today - datetime.timedelta(days=7)
print("最近七天的日期:")
while today > seven_days_ago:
print(today)
today -= datetime.timedelta(days=1)
```
python 获取七天内的最高气温
可以使用第三方库pytemperature来将摄氏度转换成华氏度,然后利用Python自带的datetime库来获取历史天气数据,具体代码实现可以参考以下示例:
```python
import requests
import pytemperature
from datetime import datetime, timedelta
API_KEY = 'your_api_key'
CITY = 'Shanghai'
# 获取当前日期及前七天日期
end_date = datetime.now()
start_date = end_date - timedelta(days=7)
# 获取历史天气数据
weather_data = []
for i in range((end_date - start_date).days + 1):
date = (start_date + timedelta(days=i)).strftime('%Y-%m-%d')
url = f'https://api.openweathermap.org/data/2.5/weather?q={CITY}&appid={API_KEY}&units=metric&dt={date}'
response = requests.get(url).json()
temperature = response['main']['temp']
# 将摄氏度转换成华氏度
temperature = pytemperature.c2f(temperature)
weather_data.append({'date': date, 'temperature': round(temperature, 2)})
# 获取七天内的最高气温
max_temp = max([data['temperature'] for data in weather_data])
print(f'The maximum temperature in the past seven days in {CITY} is {max_temp:.2f} ℉.')
```
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老师在课堂上问小明:“小明,你认为最长的英文单词是什么?”小明回答:“我知道,那是smiles(微笑)。”老师摇了摇头:“不对,最长的单词是smiles,因为最长的单词就是一个微笑!”