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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
bpftrace教程【官方】bpftrace_tutorial该教程通过12个简单小节帮助你了解bpftrace的使用。每一小节都是一行的命令，你可以立马运行并看到运行效果。该教程系列用来介绍bpftrace的概念。关于bpftrace的完整参考，见bpftr 该教程通过12...
Referring to the null object in Python
...t;> NoneType = type(None)
>>> id(None)
10748000
>>> my_none = NoneType()
>>> id(my_none)
10748000
>>> another_none = NoneType()
>>> id(another_none)
10748000
>>> def function_that_does_nothing(): pass
>>> return_value = function_that_...
How to use __doPostBack()
I'm trying to create an asyncrhonous postback in ASP.NET using __doPostBack() , but I have no idea how to do it. I want to use vanilla JavaScript.
...
Why not use tables for layout in HTML? [closed]
...sy to resolve with master pages or user controls in .net, include files in php or classic asp, etc ... Anybody who copies the company layout like this deserves an a** kicking! ;-)
– John MacIntyre
May 20 '09 at 14:30
...
python: Change the scripts working directory to the script's own directory
..., you can use the os.path functions:
import os
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)
This takes the filename of your script, converts it to an absolute path, then extracts the directory of that path, then changes into that directory.
...
django urls without a trailing slash do not redirect
...
check your APPEND_SLASH setting in the settings.py file
more info in the django docs
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How is AngularJS different from jQuery
...
I mixed up one thing ! for example we use php for server side and we take our framework based on MVC concept and in template which we use javascript we use Angular js too so here angular js MVC is useless , isn't it?
– Farhad
...
What is the purpose of Flask's context stacks?
...ing" example:
from werkzeug.wsgi import DispatcherMiddleware
from frontend_app import application as frontend
from backend_app import application as backend
application = DispatcherMiddleware(frontend, {
'/backend': backend
})
Notice that there are two completely different Flask applicat...
Running a specific test case in Django when your app has a tests directory
...ecify tests to run like:
python manage.py test another.test:TestCase.test_method
or as noted in comments, use the syntax:
python manage.py test another.test.TestCase.test_method
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improv...
What are the differences between json and simplejson Python modules?
...plejson
from timeit import repeat
NUMBER = 100000
REPEAT = 10
def compare_json_and_simplejson(data):
"""Compare json and simplejson - dumps and loads"""
compare_json_and_simplejson.data = data
compare_json_and_simplejson.dump = json.dumps(data)
assert json.dumps(data) == simplejson...