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Lua获取系统时间及时间格式化

栏目：综合技术时间：2015-03-27 07:52:50

系统当前时间对应的时间戳

local ntime = os.time

print(ntime)

格式化时间显示，参考下表

经常使用于设置header等

ngx.header["Last-Modified:"] = os.date("%a, %d %b %Y %X GMT")

ngx.header["Content-Type"] = "text/html; charset=utf⑻"

ngx.header["Cache-Control"] = "public"

ngx.header["Expires"] = os.date("%a, %d %b %Y %X GMT", os.time() + cdnCacheTime)

%a	abbreviated weekday name (e.g., Wed)
%A	full weekday name (e.g., Wednesday)
%b	abbreviated month name (e.g., Sep)
%B	full month name (e.g., September)
%c	date and time (e.g., 09/16/98 23:48:10)
%d	day of the month (16) [01⑶1]
%H	hour, using a 24-hour clock (23) [00⑵3]
%I	hour, using a 12-hour clock (11) [01⑴2]
%M	minute (48) [00⑸9]
%m	month (09) [01⑴2]
%p	either "am" or "pm" (pm)
%S	second (10) [00⑹1]
%w	weekday (3) [0⑹ = Sunday-Saturday]
%x	date (e.g., 09/16/98)
%X	time (e.g., 23:48:10)
%Y	full year (1998)
%y	two-digit year (98) [00⑼9]
%%	the character '%'

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