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...e
//这里执行的是release模式下
#endif
（2）__i386__ 与 __x86_64__ ：用于模拟器环境和真机环境的判断。满足该条件的代码只在模拟器下执行。示例代码如下：
#ifdefined(__i386__)||defined(__x86_64__)
//模拟器下执行
#else
//真机下执行...
How to import data from mongodb to pandas?
... 27017, database="db_tmp") columns = ["col1", "col2"] data_type = ["int64", "int64"] arrays = client.query("db_tmp", "coll", {}, columns, data_type) For 50000 records takes around 200s.
– nishant
Nov 27 '17 at 11:09
...
Does ruby have real multithreading?
... with:
jruby 1.5.6 (ruby 1.8.7 patchlevel 249) (2014-02-03 6586)
(OpenJDK 64-Bit Server VM 1.7.0_75) [amd64-java]
The second is with:
ruby 2.1.2p95 (2014-05-08) [x86_64-linux-gnu]
Interestingly, the CPU is higher for JRuby threads, but the time to completion is slightly shorter for the interpre...
User Authentication in ASP.NET Web API
...uld have to secured resources controlled by the system. For example, a database management system might be designed so as to provide certain specified individuals with the ability to retrieve information from a database but not the ability to change data stored in the datbase, while giving other ind...
How to select multiple files with ?
...files){
if(err){return}
console.log(files)//contains base64 encoded string array holding the
image data
});
});
var _readFileDataUrl=function(input,callback){
var len=input.files.length,_files=[],res=[];
var readFile=function(filePos){
if(!file...
Create subdomains on the fly with .htaccess (PHP)
...an application as the question proposes.
I have documented my mod_rewrite based mass virtual hosting environment before in a post on my blog, which you could look at if that is the route you wish to take. There is also, of course, the respective Apache manual page.
Apache also has an internal way ...
'printf' vs. 'cout' in C++
...n printf; I'm just trying to say that you should make an informed decision based on real data, not a wild guess based on some common, misleading assumption.
Update: Here's the full code I used for testing. Compiled with g++ without any additional options (apart from -lrt for the timing).
#include ...
Creating a range of dates in Python
...
Marginally better...
base = datetime.datetime.today()
date_list = [base - datetime.timedelta(days=x) for x in range(numdays)]
share
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improve t...
How do I delete unpushed git commits?
....
But if you had several commits on the wrong branch, that is where git rebase --onto shines:
Suppose you have this:
x--x--x--x <-- master
\
-y--y--m--m <- y branch, with commits which should have been on master
, then you can mark master and move it where you woul...
Is there any way to check if iOS app is in background?
...App delegate gets callbacks indicating state transitions. You can track it based on that.
Also the applicationState property in UIApplication returns the current state.
[[UIApplication sharedApplication] applicationState]
...