大约有 46,000 项符合查询结果（耗时：0.1216秒） [XML]
How to include a quote in a raw Python string
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edited Aug 15 '14 at 4:03
answered Jan 7 '11 at 21:31
Ad...
Logging levels - Logback - rule-of-thumb to assign log levels
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edited Aug 9 '19 at 5:20
Chege
29544 silver badges88 bronze badges
answered Nov 5 '11 at 16:40
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How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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Behaviour for significant change location API when terminated/suspended?
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80
Since I asked this question, I have done a fair bit of testing (mostly on the train between home...
Eclipse WTP vs sydeo, “ serves modules without publishing ”
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+50
The answer quoted from @Vsplit
The problem was solved by adding MAVEN with WTP deployment. No
performance problems ... and I don...
Get file version in PowerShell
... list of files:
get-childitem * -include *.dll,*.exe | foreach-object { "{0}`t{1}" -f $_.Name, [System.Diagnostics.FileVersionInfo]::GetVersionInfo($_).FileVersion }
Or even nicer as a script: https://jtruher3.wordpress.com/2006/05/14/powershell-and-file-version-information/
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std::next_permutation Implementation Explanation
...y the smallest amount". For example when counting we don't count 1, 2, 3, 10, ... because there are still 4, 5, ... in between and although 10 is larger than 3, there are missing numbers which can be gotten by increasing 3 by a smaller amount. In the example above we see that 1 stays as the first nu...
How does BLAS get such extreme performance?
... The simplest variants is entirely written in plain C and has less than 450 lines of code. All the other variants merely optimize the loops
for (l=0; l<MR*NR; ++l) {
AB[l] = 0;
}
for (l=0; l<kc; ++l) {
for (j=0; j<NR; ++j) {
for (i=0; i<MR; ++i) ...
What is causing this ActiveRecord::ReadOnlyRecord error?
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Rails 2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the ...
EC2 instance types's exact network performance?
.../d2 instances:
t2.nano = ??? (Based on the scaling factors, I'd expect 20-30 MBit/s)
t2.micro = ~70 MBit/s (qiita says 63 MBit/s) - t1.micro gets about ~100 Mbit/s
t2.small = ~125 MBit/s (t2, qiita says 127 MBit/s, cloudharmony says 125 Mbit/s with spikes to 200+ Mbit/s)
*.medium = t2.medium gets...