大约有 40,000 项符合查询结果（耗时：0.0379秒） [XML]
When is assembly faster than C?
...al minutes to complete, mainly because he was using multiplies and divides etc.
I showed him how to recast the problem using bit shifts, and the time to process came down to about 30 seconds on the non-optimizing compiler he had.
I had just got an optimizing compiler and the same code rotated the ...
How to print to console when using Qt
...rom Goz's answer but present in the comments below it) about what qDebug() etc actually do, this will be by far the superior answer (IMO it's already superior since OP is asking for something to replace std::cout, but 40ish voters appear not to agree).
– Kyle Strand
...
Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
... are called.
Any of the well known tools like awk, sed, grep, bc, dc, tr, etc. will leave doing those operations in either language in the dust. Bash then is preferred for anything without a graphical user interface since it is easier and more efficient to call and pass data back from a tool like t...
Spring RestTemplate timeout
...estTemplateBuilder)
{
return restTemplateBuilder
.setConnectTimeout(...)
.setReadTimeout(...)
.build();
}
}
For Spring Boot <= 1.3
@Configuration
public class AppConfig
{
@Bean
@ConfigurationProperties(prefix = "custom.rest.connection...
Convert from enum ordinal to enum type
...ubs! A C programmer would allocate 1 byte for each: 'const char CLUBS=0;' etc... Yes,a HashMap lookup is O(1), but the memory and CPU overhead of a HashMap, in this case make it many orders of magnitude slower and resource hungry than calling .values() directly! No wonder Java is such a memory hog ...
Reset/remove CSS styles for element only
...nguage-override: unset;
font-size-adjust: unset;
font-size: unset;
font-stretch: unset;
font-style: oblique;
font-synthesis: unset;
font-variant: unset;
font-weight: unset;
font: ;
force-broken-image-icon: unset;
height: unset;
hyphens: unset;
image-orientation: unset;
image-region: unset;
image-ren...
How to swap the buffers in 2 windows emacs
...l see a comment about the all-important mappings for C-S-up to buf-move-up etc.
– Micah Elliott
Jul 11 '16 at 21:20
...
Why do you create a View in a database?
...ant to give all of your sales people access to the name, address, zipcode, etc. fields, but not credit_card_number. You can create a view that only includes the columns they need access to and then grant them access on the view.
...
How to create a string with format?
I need to create a string with format which can convert int, long, double etc. types into string. Using Obj-C, I can do it via below way.
...
How to manage local vs production settings in Django?
...local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
...