大约有 47,000 项符合查询结果（耗时：0.0520秒） [XML]
Parallel.ForEach vs Task.Run and Task.WhenAll
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163
In this case, the second method will asynchronously wait for the tasks to complete instead of ...
sed or awk: delete n lines following a pattern
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192
I'll have a go at this.
To delete 5 lines after a pattern (including the line with the patter...
Temporarily disable Eclipse plugin
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132
Some plugins allow controlling their load-on-startup behavior. These will be listed in the pre...
GridLayout and Row/Column Span Woe
...oid:layout_gravity="fill"
android:layout_rowSpan="2"
android:text="1" />
<Button
android:layout_columnSpan="2"
android:layout_gravity="fill_horizontal"
android:text="2" />
<Button
android:layout_gravity="fill_vertical"
android:layout_rowSpan="4"
android:...
Python's os.makedirs doesn't understand “~” in my path
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281
You need to expand the tilde manually:
my_dir = os.path.expanduser('~/some_dir')
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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
...ething like this:
$ env -i perl -V
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@INC:
/usr/lib/perl5/site_perl/5.18.0/x86_64-linux-thread-multi-ld
/usr/lib/perl5/site_perl/5.18.0
/usr/lib/perl5/5.18.0/x86_64-linux-thread-multi-ld
/usr/lib/perl5/5.18.0
.
Note . at the end; this is the current directory (which is not necessarily t...
How can I limit a “Run Script” build phase to my release configuration?
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edited Mar 3 '11 at 20:30
answered Aug 31 '10 at 23:55
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...mented)
Modern Versions of PostgreSQL
Suppose you have a table named test1, to which you want to add an auto-incrementing, primary-key id (surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
Older...
LINQ query to return a Dictionary
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edited May 16 '09 at 19:36
answered Mar 9 '09 at 20:23
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How to compare two files not in repo using git
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218
git's diff is more functional than the standard unix diff. I often want to do this and since t...