Python如何根据日期判断周几

Python如何根据日期判断周几

Python判断周几主要使用了time, datetime库，具体实现方法如下。

方法一：

#!/usr/bin/python
# -*- coding:utf-8 -*-
from datetime import datetime
today = datetime.now().weekday() + 1
print(today)
week = datetime.strptime("20191018","%Y%m%d").weekday() + 1
print(week)

方法二：

#!/usr/bin/python
# -*- coding:utf-8 -*-
from datetime import datetime
apply_time = 20191018
apply_time = datetime.utcfromtimestamp(apply_time)
time_str = apply_time.strftime("%Y-%m-%d %H:%M:%S")
apply_hour = time_str.split(" ")[1].split(":")[0]
apply_week = datetime.strptime(time_str.split(" ")[0], "%Y-%m-%d").weekday()
print(apply_week)

方法三：

#!/usr/bin/python
# -*- coding:utf-8 -*-
import time, datetime
def get_week_day(date):
    week_day_dict = {
        0: '星期一',
        1: '星期二',
        2: '星期三',
        3: '星期四',
        4: '星期五',
        5: '星期六',
        6: '星期天',
    }
    day = date.weekday()
    return week_day_dict[day]
print(get_week_day(datetime.datetime.now()))

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