time
– 时间和定时相关功能
该 time
模块是 CPython time
模块的严格子集。因此,用 MicroPython 编写的代码可以在 CPython 中运行,但不一定反过来。
在这些板上可用
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-
time.
monotonic
() → float
返回具有未知参考点的始终增加的时间值。仅使用它与来自 的其他值进行比较monotonic
.
- 返回
当前单调时间
- 返回类型
float
-
time.
sleep
(seconds: float) → None
睡眠给定的秒数。
- 参数
seconds (float) – 以秒为单位的睡眠时间
-
class
time.
struct_time
(time_tuple: Sequence[int])
用于捕获日期和时间的结构。可以从一个被构造 struct_time
, tuple
, list
, 或 namedtuple
具有9个元件。
- 参数
time_tuple (Sequence) –
时间信息顺序: (tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst)
tm_year
: 年份,例如 2017
tm_mon
:月份,范围 [1, 12]
tm_mday
:月份中的第几天,范围 [1, 31]
tm_hour
: 小时,范围 [0, 23]
tm_min
:分钟,范围 [0, 59]
tm_sec
: 第二个,范围 [0, 61]
tm_wday
: 星期几,范围[0, 6],星期一为0
tm_yday
: 一年中的第几天,范围 [1, 366],-1 表示未知
tm_isdst
:夏令时为 1,不为时为 0,如果未知则为 -1。
-
time.
time
() → int
返回自 1970 年 1 月 1 日以来的当前时间(以秒为单位)。
- 返回
当前时间
- 返回类型
int
-
time.
monotonic_ns
() → int
返回单调时钟的时间,不能倒退,以纳秒为单位。
- 返回
当前时间
- 返回类型
int
-
time.
localtime
(secs: int) → struct_time
将自 1970 年 1 月 1 日以来以秒表示的时间转换为本地时间的 struct_time。如果未提供 secs 或 None,则使用 time() 返回的当前时间。它可以生成时间的最早日期是 2000 年 1 月 1 日。
- 返回
当前时间
- 返回类型
time.struct_time
-
time.
mktime
(t: struct_time) → int
这是 localtime() 的反函数。它的参数是 struct_time 或完整的 9 元组(因为需要 dst 标志;如果未知,则使用 -1 作为 dst 标志)表示本地时间,而不是 UTC。它可以生成时间的最早日期是 2000 年 1 月 1 日。
- 返回
秒
- 返回类型
int