大约有 35,470 项符合查询结果（耗时：0.0456秒） [XML]
Android: When is onCreateOptionsMenu called during Activity lifecycle?
...Ware
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How to use background thread in swift?
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Swift 3.0+
A lot has been modernized in Swift 3.0. Running something on the background thread looks like this:
DispatchQueue.global(qos: .background).async {
print("This is run on the background queue")
DispatchQueue.main....
How to forward declare a template class in namespace std?
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edited Oct 2 '13 at 19:50
answered Oct 7 '10 at 6:41
Jon ...
How to add “on delete cascade” constraints?
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edited Mar 14 '18 at 8:30
Alexander Farber
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How do you pass arguments to define_method?
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edited Sep 18 '08 at 3:12
answered Sep 18 '08 at 3:06
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Initializing a member array in constructor initializer
... assignments in the body. This is what boost::array does.
Does the C++03 standard say anything special about initializing aggregates (including arrays) in ctor initializers? Or the invalidness of the above code is a corollary of some other rules?
A mem-initializer uses direct initialization....
Where is the documentation for the values() method of Enum?
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180
You can't see this method in javadoc because it's added by the compiler.
Documented in three pl...
Python pip install fails: invalid command egg_info
...tall Distribute.
Distribute has been merged into Setuptools as of version 0.7. If you are using a version <=0.6, upgrade using pip install --upgrade setuptools or easy_install -U setuptools.
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Updating address bar with new URL without hash or reloading the page
...most "modern" browsers!
Here is the original article I read (posted July 10, 2010): HTML5: Changing the browser-URL without refreshing page.
For a more in-depth look into pushState/replaceState/popstate (aka the HTML5 History API) see the MDN docs.
TL;DR, you can do this:
window.history.pushStat...
How to pass macro definition from “make” command line arguments (-D) to C source code?
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100
Call make command this way:
make CFLAGS=-Dvar=42
And be sure to use $(CFLAGS) in your compil...