可以在 rtc.datetime() 中更改元组吗？

Question

import network, ntptime, time
from machine import RTC

# dictionary that maps string date names to indexes in the RTC's 
datetime tuple
DATETIME_ELEMENTS = {
    "year": 0,
    "month": 1,
    "day": 2,
    "day_of_week": 3,
    "hour": 4,
    "minute": 5,
    "second": 6,
    "millisecond": 7
}

def connect_to_wifi(wlan, ssid, password):
    if not wlan.isconnected():
        print("Connecting to network...")
        wlan.connect(ssid, password)
        while not wlan.isconnected():
            pass

# set an element of the RTC's datetime to a different value
def set_datetime_element(rtc, datetime_element, value):
    date = list(rtc.datetime())
    date[DATETIME_ELEMENTS[datetime_element]] = value
    rtc.datetime(date)


wlan = network.WLAN(network.STA_IF)
wlan.active(True)

connect_to_wifi(wlan, "SSID", "Password")

rtc = RTC()
ntptime.settime()

set_datetime_element(rtc, "hour", 8) # I call this to change the hour to 8am for me


print(rtc.datetime()) # print the updated RTC time

打印结果：

(2022, 4, 28, 3, 18, 50, 27, 0)
(2022, 4, 28, 3, 8, 50, 27, 0)

我正在尝试获取：

(2022, 4, 28, 8, 50, 27)

我不想要天或微秒。有什么建议吗？

Answer 1

如果你只想打印元组中字段的子集，你可以使用 Python 的切片操作（参见示例 here 到 select 只有那些字段：

>>> now=(2022, 4, 28, 3, 18, 50, 27, 0)
>>> print(now)
(2022, 4, 28, 3, 18, 50, 27, 0)
>>> print(now[:3] + now[5:7])
(2022, 4, 28, 50, 27)

可以在 rtc.datetime() 中更改元组吗？

Can the tuples be changed in rtc.datetime()?

python

micropython