大约有 30,000 项符合查询结果(耗时:0.0414秒) [XML]

https://stackoverflow.com/ques... 

How to schedule a function to run every hour on Flask?

...om 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=print_date_time, trigger="interval", seconds=3) scheduler.start() # Shut down the scheduler when ...
https://stackoverflow.com/ques... 

Comma in C/C++ macro

...ose the macro argument in parentheses: FOO((std::map<int, int>), map_var); The problem is then that the parameter remains parenthesized inside the macro expansion, which prevents it being read as a type in most contexts. A nice trick to workaround this is that in C++, you can extract a typ...
https://stackoverflow.com/ques... 

appending array to FormData and send via AJAX

... Based on @YackY answer shorter recursion version: function createFormData(formData, key, data) { if (data === Object(data) || Array.isArray(data)) { for (var i in data) { createFormData(formData, key ...
https://stackoverflow.com/ques... 

If isset $_POST

... Since !empty() is already checks for both, you can use this: if (!empty($_POST["mail"])) { echo "Yes, mail is set"; } else { echo "No, mail is not set"; } share | improve this answe...
https://stackoverflow.com/ques... 

Correct way to use StringBuilder in SQL

...have been 26 to start with, then doubled to 52, then 104, 208, 416, 832, 1664, 3328, and finally 6656). Only significant if this is a hotspot, but still, if you know in advance... :-) – T.J. Crowder Jan 4 '12 at 12:24 ...
https://stackoverflow.com/ques... 

NumPy: function for simultaneous max() and min()

... as of numpy 1.8 min and max are vectorized on amd64 platforms,on my core2duo numpy performs as well as this fortran code. But a single pass would be advantageous if the array exceed the size of the larger cpu caches. – jtaylor Mar 7 '1...
https://stackoverflow.com/ques... 

What's the common practice for enums in Python? [duplicate]

... @Joan You could do _unused, Shaded, Shiny, Transparent, Matte = range(5) – zekel Dec 9 '10 at 2:12 81 ...
https://www.tsingfun.com/it/bigdata_ai/422.html 

MongoDB数据导出导入工具:mongoexport,mongoimport - 大数据 & AI - 清泛...

...个students集合,集合中数据如下: > db.students.find() { "_id" : ObjectId("5031143350f2481577ea81e5"), "classid" : 1, "age" : 20, "name" : "kobe" } { "_id" : ObjectId("5031144a50f2481577ea81e6"), "classid" : 1, "age" : 23, "name" : "nash" } { "_id" : ObjectId("5031145a50f2481577ea81...
https://stackoverflow.com/ques... 

What to put in a python module docstring? [closed]

... NAME x - This module does blah blah. FILE /tmp/x.py CLASSES __builtin__.object Blah class Blah(__builtin__.object) | This class does blah blah. | | Data and other attributes defined here: | | __dict__ = <dictproxy object> | ...
https://stackoverflow.com/ques... 

Logging uncaught exceptions in Python

...access the type object inside your function, in which case you can use type_ as the argument instead. – Ryan P Jan 2 '13 at 17:08 3 ...