大约有 14,000 项符合查询结果（耗时：0.0416秒） [XML]
Is there any difference between “foo is None” and “foo == None”?
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I just tried a=1;b=1;print(a is b) # True. Any idea why a is b turn out to be true even if they seems to be 2 different object (different address in memory)?
– Johnny Chiu
May 9 '19 at 3:28
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Determine whether JSON is a JSONObject or JSONArray
... going to receive either a JSON Object or Array from server, but I have no idea which it will be. I need to work with the JSON, but to do so, I need to know if it is an Object or an Array.
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Base64 Java encode and decode a string [duplicate]
...ould be to try/catch the encoding/decoding steps but hopefully you get the idea.
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How to escape the % (percent) sign in C's printf?
... then go through it doubling up the % signs. I eventually came across this idea and replaced a 20-30 line function with one line. Don't worry, I did beat myself severely about the head, as I deserved.
– Graeme Perrow
Dec 7 '09 at 14:19
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How to get Sinatra to auto-reload the file after each change?
...rackup, instead do
the following:
$ rerun 'rackup'
You get the idea.
If you still want in-process reloading, check out Sinatra::Reloader.
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QString to char* conversion
...cesinOrbit: writing to QString's contents without it knowing is a horrible idea, hence of course const char* is what can really be obtained. The user is free to copy the data to a writable buffer.
– Eli Bendersky
Nov 16 '12 at 14:28
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How to list files in an android directory?
... Thanks Yury, strangely file.length gives a NullPointerException... any ideas? Spasibo!
– Roger Travis
Dec 27 '11 at 17:36
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“[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed]
...include the backtrace.
If the crash is hard to reproduce it may be a good idea to configure Apache to only use one child processes for handling requests. The config is something like this:
StartServers 1
MinSpareServers 1
MaxSpareServers 1
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What are the best JVM settings for Eclipse? [closed]
...directory to an external directory of your choice.
See this SO answer.
The idea is to be able to drop new plugins in a directory independently from any Eclipse installation.
The following sections detail what are in this eclipse.ini file.
The dreaded Oracle JVM 1.6u21 (pre build 7) and Eclipse...
How to read lines of a file in Ruby
...ne|
print "#{line_num += 1} #{line}"
end
Of course this could be a bad idea on very large files since it means loading the whole file into memory.
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