大约有 7,000 项符合查询结果(耗时:0.0214秒) [XML]
Check whether a string contains a substring
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David W.David W.
96.5k3333 gold badges199199 silver badges310310 bronze badges
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Converting numpy dtypes to native python types
...ype(pyval)) # <class 'float'>
# and similar...
type(np.float64(0).item()) # <class 'float'>
type(np.uint32(0).item()) # <class 'long'>
type(np.int16(0).item()) # <class 'int'>
type(np.cfloat(0).item()) # <class 'complex'>
type(np.datetime64(0, 'D').item()) ...
Reminder - \r\n or \n\r?
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BrunoLMBrunoLM
84.4k7373 gold badges266266 silver badges420420 bronze badges
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Aborting a shell script if any command returns a non-zero value?
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84
The if statements in your example are unnecessary. Just do it like this:
dosomething1 || exit...
Why do most fields (class members) in Android tutorial start with `m`?
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84
A lot of coding guide lines use m for 'members' of a class. So when you're programming you can ...
The performance impact of using instanceof in Java
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+0.(9) for science!
– user719662
Feb 9 '15 at 21:22
16
+ the other 0.1 f...
Python Image Library fails with message “decoder JPEG not available” - PIL
...f that doesn't work, try one of the below, depending on whether you are on 64bit or 32bit Ubuntu.
For Ubuntu x64:
sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib
Or for Ubu...
Content Security Policy “data” not working for base64 Images in Chrome 28
...ying to set a CSP header with the meta http-equiv header. I included a base64 image and I'm trying to make Chrome load the image.
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...3: (106) Invalid instruction 0x00dd
printf crashes. "O_O"
gcc 4.4@x86_64-suse-linux
We like to think that:
..05 int has the size of pointers
but 'sizeof(int)==sizeof(void*)' is false.
..08 overshifting is okay
but '(1<<bits_per_int)==0' is false.
..09a minus shifts backwards
but '(t=-1,(...
Different floating point result with optimization enabled - compiler bug?
...ssors use 80-bit extended precision internally, whereas double is normally 64-bit wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit precision.
Use the -ffloat-store gcc option to get the same fl...
