大约有 39,200 项符合查询结果（耗时：0.0543秒） [XML]
Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...tes (such as "hour" and "mon").
Try these examples:
date.hour=strptime("2011-03-27 01:30:00", "%Y-%m-%d %H:%M:%S")
date=c("26/10/2016")
time=c("19:51:30")
day<-paste(date,"T", time)
day.time1=as.POSIXct(day,format="%d/%m/%Y T %H:%M:%S",tz="Europe/Paris")
day.time1
day.time1$year
day.time2...
How to select only the records with the highest date in LINQ
...ebruno conde
45.3k1313 gold badges9191 silver badges112112 bronze badges
add a comment
|
...
How to define a custom ORDER BY order in mySQL
...
SuperShoot
5,83811 gold badge1919 silver badges3939 bronze badges
answered Feb 21 '12 at 13:49
MchlMchl
...
How do browsers pause/change Javascript when tab or window is not active?
...9- not affected not supported
10 not affected paused
11+ >=1000ms paused
Firefox
3- not affected not supported
4 not affected 1s
5+ >=1000ms 2ns (n = number of frames since inactivity)
IE
9- not affected not...
How do I determine which iOS SDK I have?
... Xcode: 4.6 (2066)
Instruments: 4.6 (46000)
SDKs:
OS X:
10.7: (11E52)
10.8: (12C37)
iOS:
6.1: (10B141)
iOS Simulator:
6.1: (10B141)
share
|
improve this answer
|
...
Difference between res.send and res.json in Express.js
... hexacyanidehexacyanide
71k2727 gold badges141141 silver badges143143 bronze badges
add a comment
...
Django admin: how to sort by one of the custom list_display fields that has no database field
...
answered Sep 16 '11 at 18:00
bbrikbbrik
2,47611 gold badge1717 silver badges77 bronze badges
...
Can the C# interactive window interact with my code?
...
Luke HammerLuke Hammer
1,40222 gold badges1111 silver badges2626 bronze badges
11
...
What are “signed” cookies in connect/expressjs?
...
Raj Nathani
2,64511 gold badge1717 silver badges1919 bronze badges
answered Aug 10 '12 at 8:40
staackuser2staackuser2
...
Is there a more elegant way of adding an item to a Dictionary safely?
...
Jon SkeetJon Skeet
1211k772772 gold badges85588558 silver badges88218821 bronze badges
...