大约有 48,000 项符合查询结果(耗时:0.0782秒) [XML]

https://stackoverflow.com/ques... 

Can I get Memcached running on a Windows (x64) 64bit environment?

...x http://allegiance.chi-town.com/Download.aspx?dl=Releases/MemCacheDManager_1_0_3_0.msi&rurl=MemCacheDManager.aspx To unpack the msi: msiexec /a Releases_MemCacheDManager_1_0_3_0.msi /qb TARGETDIR=c:\memcached share ...
https://stackoverflow.com/ques... 

How to run code when a class is subclassed? [duplicate]

...on2 you would define the metaclass of a class with class SuperClass: __metaclass__ = Watcher where Watcher is a subclass of type. In Python3 the syntax has been changed to class SuperClass(metaclass=Watcher) Both are equivalent to Superclass = Watcher(name, bases, clsdict) where in t...
https://stackoverflow.com/ques... 

How to correctly use the extern keyword in C

...ction prototypes: //-------------------------------------- //Filename: "my_project.H" extern int function_1(void); static int function_2(void); int function_3(void); The header file can be used by the main source code as follows: //-------------------------------------- //Filename: "my_pr...
https://stackoverflow.com/ques... 

How can I check if a Perl array contains a particular value?

... Simply turn the array into a hash: my %params = map { $_ => 1 } @badparams; if(exists($params{$someparam})) { ... } You can also add more (unique) params to the list: $params{$newparam} = 1; And later get a list of (unique) params back: @badparams = keys %params; ...
https://stackoverflow.com/ques... 

Pass an array of integers to ASP.NET Web API?

... ArrayInputAttribute : ActionFilterAttribute { private readonly string _parameterName; public ArrayInputAttribute(string parameterName) { _parameterName = parameterName; Separator = ','; } public override void OnActionExecuting(HttpActionContext actionContext) ...
https://stackoverflow.com/ques... 

Removing all non-numeric characters from string in Python

...n Python2, and both strings and bytes in Python3: # python <3.0 def only_numerics(seq): return filter(type(seq).isdigit, seq) # python ≥3.0 def only_numerics(seq): seq_type= type(seq) return seq_type().join(filter(seq_type.isdigit, seq)) ...
https://stackoverflow.com/ques... 

Compile time string hashing

...the code snippet: // CRC32 Table (zlib polynomial) static constexpr uint32_t crc_table[256] = { 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d0...
https://stackoverflow.com/ques... 

printf format specifiers for uint32_t and size_t

... Sounds like you're expecting size_t to be the same as unsigned long (possibly 64 bits) when it's actually an unsigned int (32 bits). Try using %zu in both cases. I'm not entirely certain though. ...
https://stackoverflow.com/ques... 

Run a single migration file

...f the ruby file: rails console >> require "db/migrate/20090408054532_add_foos.rb" >> AddFoos.up Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up. An alternative way (without IRB) which relies on the fact that require returns an array of class names: sc...
https://stackoverflow.com/ques... 

How to log source file name and line number in Python

...='%Y-%m-%d:%H:%M:%S', level=logging.DEBUG) logger = logging.getLogger(__name__) logger.debug("This is a debug log") logger.info("This is an info log") logger.critical("This is critical") logger.error("An error occurred") Generates this output: 2017-06-06:17:07:02,158 DEBUG [log.py:11] Thi...