大约有 31,500 项符合查询结果（耗时：0.0605秒） [XML]
How to iterate through two lists in parallel?
...hat advantage that only itertools.izip() had in Python 2 and thus it is usually the way to go.
– Daniel S.
Jun 14 '16 at 17:40
5
...
Why does the use of 'new' cause memory leaks?
...of type T with automatic storage duration. It will get cleaned up automatically when it goes out of scope.
When you write new T() you're creating an object of type T with dynamic storage duration. It won't get cleaned up automatically.
You need to pass a pointer to it to delete in order to clean...
Throwing cats out of windows
Imagine you're in a tall building with a cat. The cat can survive a fall out of a low story window, but will die if thrown from a high floor. How can you figure out the longest drop that the cat can survive, using the least number of attempts?
...
How to get root access on Android emulator?
I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD).
...
Error “initializer element is not constant” when trying to initialize variable with const
...tatic pointer defined inside a function, this is error: static int* ptr = malloc(sizeof(int)*5); but this is NOT an error: static int* ptr; ptr = malloc(sizeof(int)*5); :D
– aderchox
Jan 5 '19 at 19:33
...
What's the difference between a proc and a lambda in Ruby?
...ept the resulting Proc objects check the number of parameters passed when called.
An example:
p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1>
p.call 1, 2 # => 5
p.call 1 # => NoMethodError: undefined method `**' for nil:NilClass
p.call 1, 2, 3 # => 5
l = lamb...
Sibling package imports
...ks well for private scripts, but there has been several improvements
Installing the package (in a virtualenv or not) will give you what you want, though I would suggest using pip to do it rather than using setuptools directly (and using setup.cfg to store the metadata)
Using the -m flag and runnin...
Printing a variable memory address in swift
...er was quite old. Many of the methods it describes no longer work. Specifically .core cannot be accessed anymore.
However @drew's answer is correct and simple:
This is now part of the standard library: unsafeAddressOf.
So the answer to your questions is:
println(" str value \(str) has addre...
What exactly is Java EE?
...lementation of the specification. The concrete implementations are the so-called application servers, like WildFly, TomEE, GlassFish, Liberty, WebLogic, etc. There are also servlet containers which implement only the JSP/Servlet part of the huge Java EE API, such as Tomcat, Jetty, etc.
We, Java EE d...
How to save/restore serializable object to/from file?
...
No need to call the close method on a reader within your using block. Dispose() is implicit and will take place even if an exception is raised within the block before the explicit Close(). Very useful block of code.
...