标签:ems repr date() rsa 函数 for strftime use option
os.date ([format [, time]])
Returns a string or a table containing date and time, formatted according to the given string format
.
If the time
argument is present, this is the time to be formatted (see the os.time
function for a description of this value). Otherwise, date
formats the current time.
If format
starts with ‘!
‘, then the date is formatted in Coordinated Universal Time. After this optional character, if format
is the string "*t
", then date
returns a table with the following fields: year
(four digits), month
(1–12), day
(1–31), hour
(0–23), min
(0–59), sec
(0–61), wday
(weekday, Sunday is 1), yday
(day of the year), and isdst
(daylight saving flag, a boolean). This last field may be absent if the information is not available.
If format
is not "*t
", then date
returns the date as a string, formatted according to the same rules as the ISO C function strftime
.
When called without arguments, date
returns a reasonable date and time representation that depends on the host system and on the current locale (that is, os.date()
is equivalent to os.date("%c")
).
On non-Posix systems, this function may be not thread safe because of its reliance on C function gmtime
and C function localtime
.
翻译:
返回字符串或包含日期和时间的表,并根据给定的string进行格式化format
。如果time
存在自变量,那么这是要格式化的时间(os.time
有关此值的说明,请参见函数)。否则,date
格式化当前时间。如果format
以“ !
” 开头,则日期采用世界标准时间格式。在此可选字符之后,如果format
字符串“ *t
” 是字符串,则date
返回包含以下字段的表:( year
四位数字),month
(1–12),day
(1–31), hour
(0–23),min
(0–59),sec
(0-61), wday
(工作日,星期日是1), yday
(一年中的某天)和isdst
(夏令时标志,一个布尔值)。如果信息不可用,则最后一个字段可能不存在。如果format
不是“ *t
”,然后date
返回日期字符串,按相同的规则ISO C函数的格式strftime
。在不带参数的情况下调用时, date
将返回一个合理的日期和时间表示形式,该表示形式取决于主机系统和当前的语言环境(即,os.date()
等效于os.date("%c")
)。
Returns the current time when called without arguments, or a time representing the date and time specified by the given table. This table must have fields year
, month
, and day
, and may have fields hour
(default is 12), min
(default is 0), sec
(default is 0), and isdst
(default is nil). For a description of these fields, see the os.date
function.
The returned value is a number, whose meaning depends on your system. In POSIX, Windows, and some other systems, this number counts the number of seconds since some given start time (the "epoch"). In other systems, the meaning is not specified, and the number returned by time
can be used only as an argument to os.date
and os.difftime
.
翻译:
不带参数调用时返回当前时间,或者表示给定表指定的日期和时间的时间。该表必须具有,,和字段year
,并且可能具有字段 (默认为12), (默认为0), (默认为0)和(默认为nil)。有关这些字段的说明,请参见功能。 month
day
hour
min
sec
isdst
os.date
返回值是一个数字,其含义取决于您的系统。在POSIX,Windows和某些其他系统中,此数字用于计算从某个给定的开始时间(“时期”)起的秒数。在其它系统中,意思是未指定,并且通过返回的数字time
只能用于作为参数 os.date
和os.difftime
。
local nowtime = os.date("*t", os.time()) for k,v in pairs(nowtime) do print(k,v) end
标签:ems repr date() rsa 函数 for strftime use option
原文地址:https://www.cnblogs.com/still-smile/p/13298243.html