大约有 44,872 项符合查询结果(耗时:0.0468秒) [XML]
How to move a model between two Django apps (Django 1.7)
...'t really focus too much on the structure, however now I am further along with Django it has started to appear that my project layout mainly my models are horrible in structure.
...
How do I compile and run a program in Java on my Mac?
... fully-functional Java runtime and development environment out-of-the-box with OSX, so all you have to do is write a Java program and use the built-in tools to compile and run it.
Writing Your First Program
The first step is writing a simple Java program. Open up a text editor (the built-in TextEd...
What is lexical scope?
...n2()
{
printf("%d", x);
}
}
Every inner level can access its outer levels.
There is another way, called dynamic scope used by the first implementation of Lisp, again in a C-like syntax:
void fun()
{
printf("%d", x);
}
void dummy1()
{
int x = 5;
fun();
}
void dummy2...
warning about too many open figures
In a script where I create many figures with fix, ax = plt.subplots(...) , I get the warning RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (matplotlib.pyplot.figure) are retained until explicitly closed and may consume too much memory.
...
How do I debug Node.js applications?
...
node-inspector could save the day! Use it from any browser supporting WebSocket. Breakpoints, profiler, livecoding, etc... It is really awesome.
Install it with:
npm install -g node-inspector
Then run:
node-debug app.js
...
Test for multiple cases in a switch, like an OR (||)
How would you use a switch case when you need to test for a or b in the same case?
6 Answers
...
How to use Swift @autoclosure
I noticed when writing an assert in Swift that the first value is typed as
6 Answers
...
What is the GAC in .NET?
...
Right, so basically it's a way to keep DLLs globally accessible without worrying about conflicts. No more DLL Hell. Each architecture and version gets it's own place to live.
It also gets it own way to browse it in Explorer, so if you go to
...
Postgres: INSERT if does not exist already
I'm using Python to write to a postgres database:
17 Answers
17
...
How to prevent the activity from loading twice on pressing the button
I am trying to prevent the activity from loading twice if I press the button twice instantly after the first click.
19 Answ...
