大约有 30,000 项符合查询结果(耗时:0.0271秒) [XML]
How to schedule a function to run every hour on Flask?
...u can use BackgroundScheduler() from APScheduler package (v3.5.3):
import time
import atexit
from apscheduler.schedulers.background import BackgroundScheduler
def print_date_time():
print(time.strftime("%A, %d. %B %Y %I:%M:%S %p"))
scheduler = BackgroundScheduler()
scheduler.add_job(func=p...
Java generics type erasure: when and what happens?
...raints are etc. But when generics are used, they're converted into compile-time checks and execution-time casts. So this code:
List<String> list = new ArrayList<String>();
list.add("Hi");
String x = list.get(0);
is compiled into
List list = new ArrayList();
list.add("Hi");
String x =...
Stateless vs Stateful - I could use some concrete information
...ause same sign up page gives differant results for user creditials...First time sign up will success...second time with same input signup will fail....because webapp has state of user somewhere stored...it may be database or differant storage
– feel good and programming
...
Is floating point math broken?
...e problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly represented.
For 0.1 in the standard binary64 format, the representation can be written exactly as...
What open source C++ static analysis tools are available? [closed]
...ment for now, but clang does C analysis and is targeted to handle C++ over time. It's part of the LLVM project.
Update: While the landing page says "The analyzer is a continuous work-in-progress", it is nevertheless now documented as a static analyzer for both C and C++.
Question: How can I run GC...
Eventual consistency in plain English
...eighbor) know the truth (that it's going to rain tomorrow), but in the meantime the client (his wife) came away thinking it is going to be sunny, even though she asked after one or more of the servers (you and me) had a more up-to-date value.
As opposed to Strict Consistency / ACID compliance:
Yo...
Why use pointers? [closed]
... the allocation again... */
free(x);
/* We can set the size at declaration time as well */
char xx[6];
xx[0] = 'H';
xx[1] = 'e';
xx[2] = 'l';
xx[3] = 'l';
xx[4] = 'o';
xx[5] = '\0';
printf("String \"%s\" at address: %d\n", xx, xx);
Do note that you can still use the variable x after you have perfo...
Script to get the HTTP status code of a list of urls?
...t) as argument to the curl call
-P10: Keep 10 curl processes alive at any time (i.e. 10 parallel connections)
Check the write_out parameter in the manual of curl for more data you can extract using it (times, etc).
In case it helps someone this is the call I'm currently using:
xargs -n1 -P 10 cu...
Display numbers with ordinal suffix in PHP
...n a single line by leveraging similar functionality in PHP's built-in date/time functions. I humbly submit:
Solution:
function ordinalSuffix( $n )
{
return date('S',mktime(1,1,1,1,( (($n>=10)+($n>=20)+($n==0))*10 + $n%10) ));
}
Detailed Explanation:
The built-in date() function has suf...
Linq to Entities - SQL “IN” clause
...er Join in this context. If I would have used contains, it would iterate 6 times despite if the fact that there are just one match.
var desiredNames = new[] { "Pankaj", "Garg" };
var people = new[]
{
new { FirstName="Pankaj", Surname="Garg" },
new { FirstName="Marc", Surname="Gravel...
