大约有 44,000 项符合查询结果（耗时：0.0659秒） [XML]
Rename a class in Xcode: Refactor… is grayed out (disabled). Why?
...
Very sad, almost 2 years later and it still won't refactor the Objective-C objects.
– christophercotton
Apr 10 '11 at 22:42
...
System.Net.Http: missing from namespace? (using .net 4.5)
TL; DR: I'm new to this language and have no idea what I'm doing
16 Answers
16
...
Delete files older than 15 days using PowerShell
...re's some code that will first delete all of the files older than 15 days, and then recursively delete any empty directories that may have been left behind. My code also uses the -Force option to delete hidden and read-only files as well. Also, I chose to not use aliases as the OP is new to PowerShe...
Convert Long into Integer
...s not go from Long to int directly, so
Integer i = (int) (long) theLong;
And in both situations, you might run into overflows (because a Long can store a wider range than an Integer).
Java 8 has a helper method that checks for overflow (you get an exception in that case):
Integer i = theLong == ...
Count number of records returned by group by
... needed the count of the groups I changed this to DISTINCT COUNT() OVER(), and the query performance improved dramatically.
– Joe Aldrich
Sep 20 '17 at 13:33
...
Eclipse does not highlight matching variables
...gt; Text Editors > Annotations
Compare the settings for 'Occurrences' and 'Write Occurrences'
Make sure that you don't have the 'Text as higlighted' option checked for one of them.
This should fix it.
share
|...
Why I am Getting Error 'Channel is unrecoverably broken and will be disposed!'
When I try to launch my AndEngine Activity , I get this error:
19 Answers
19
...
Adding dictionaries together, Python [duplicate]
I have two dictionaries and I'd like to be able to make them one:
6 Answers
6
...
Android: TextView: Remove spacing and padding on top and bottom
...
setIncludeFontPadding (boolean includepad)
or in XML this would be:
android:includeFontPadding="false"
Set whether the TextView includes extra top and bottom padding to make room for accents that go above the normal ascent and descent. The default is true.
...
How to delete a certain row from mysql table with same column values?
I have a problem with my queries in MySQL. My table has 4 columns and it looks something like this:
6 Answers
...