大约有 30,000 项符合查询结果（耗时：0.0486秒） [XML]
Remove background drawable programmatically in Android
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I get this error: The method setBackgroundResource(int) in the type View is not applicable for the arguments (null)
– UKDataGeek
May 13 '12 at 9:08
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Python way of printing: with 'format' or percent form? [duplicate]
...described here exhibit a variety of quirks that lead to a number of common errors ..." but it is not deprecated. docs.python.org/3/library/…
– guettli
Sep 3 '13 at 15:14
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Automatically creating directories with file output [duplicate]
...me)):
try:
os.makedirs(os.path.dirname(filename))
except OSError as exc: # Guard against race condition
if exc.errno != errno.EEXIST:
raise
with open(filename, "w") as f:
f.write("FOOBAR")
The reason to add the try-except block is to handle the case when t...
Creating object with dynamic keys [duplicate]
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For computed keys, I am getting a syntax error when using gulp minify task. Any body faced this? and any solution?
– Vamshi Vangapally
Apr 18 '16 at 20:08
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How to write a cron that will run a script every day at midnight?
I have heard crontab is a good choice, but how do I write the line and where do I put it on the server?
6 Answers
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ROW_NUMBER() in MySQL
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@TomChiverton If it's missing, you get: "Error Code: 1248. Every derived table must have its own alias"
– ExStackChanger
Sep 17 '15 at 9:51
1
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Using getopts to process long and short command line options
...comes with caveats:
getopts can't enforce the opt spec. It can't return errors if the user supplies an invalid option. You have to do your own error-checking as you parse OPTARG.
OPTARG is used for the long option name, which complicates usage when your long option itself has an argument. You end...
Can't pickle when using multiprocessing Pool.map()
...some way, anyhow: Using the code at pastebin.ca/1693348 I now get a RuntimeError: maximum recursion depth exceeded. I looked around and one forum post recommended increasing the maximum depth to 1500 (from the default 1000) but I had no joy there. To be honest, I can't see what part (of my code, at ...
Find out if string ends with another string in C++
...fix.rbegin(), suffix.rend(), str.rbegin() In debug mode, it throws: _DEBUG_ERROR("string iterator not decrementable");
– remi.chateauneu
May 28 '14 at 16:31
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Optional Parameters with C++ Macros
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XXX_4(1,2,3,4);
5;
PS: Remove the #define for XXX_0 to get a compile error [ie: if a no-argument option is not allowed].
PPS: Would be nice to have the invalid situations (eg: 5) be something that gives a clearer compilation error to the programmer!
PPPS: I'm not an expert, so I'm very happy...