大约有 47,000 项符合查询结果(耗时:0.0494秒) [XML]
Declaring variables inside loops, good practice or bad practice?
...lsewhere.
Last but not least, some dedicated optimization can be performed more efficiently by the compiler (most importantly register allocation), since it knows that the variable cannot be used outside of the loop. For example, no need to store the result for later re-use.
In short, you are righ...
What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]
...s listed in that article as T_DOUBLE_COLON. I'll +1 to you when I get some more votes :)
– Billy ONeal
Apr 6 '10 at 20:52
...
How to grep for two words existing on the same line? [duplicate]
...s are pretty much the last place you want to go for clarification. They're more confusing than randomly guessing.
– corsiKa
Jun 25 '11 at 21:45
5
...
Best way to structure a tkinter application? [closed]
...r class that calls the GUI is a good idea, in my experience. It offers you more flexibility if both the Tk and Frame objects are attributes of a class which doesn't inherit from anything. This way you can access the Tk and Frame objects more easily (and less ambiguously), and destroying one won't de...
How do I download a binary file over HTTP?
...
More platform-specific solutions: GNU/Linux platforms provide wget. OS X provides curl (curl http://oh.no/its/pbjellytime.flv --output secretlylove.flv). Windows has a Powershell equivalent (new-object System.Net.WebClient).D...
Java's Virtual Machine and CLR
...use they're already encoded in the instruction), but that means it needs a more complex bytecode format, with more instruction types.
I've been using Java (and admiring the JVM) for about ten years now.
But, in my opinion, the CLR is now the superior implementation, in almost every way.
...
How to define a two-dimensional array?
... initialisation to some value is almost always what you want - and this is more often than not 0. range yields an iterable collection - xrange returns a generator. My point was that ademar "corrected" something that was actually more generally correct and efficient than his correction.
...
How to implement onBackPressed() in Fragments?
...
|
show 3 more comments
166
...
The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
...
There is absolutely no reason to use ext/mysql—choose one of the other, more modern, extensions instead and reap the rewards of the benefits they offer.
You have (your own) legacy codebase that currently depends upon ext/mysql.
It would be wise to perform regression testing: you really shouldn't...
How to print a string in fixed width?
...
This is far more intuitive and concise than the new str.format. I don't understand why there is this push in python towards convolution
– scottmrogowski
Jun 6 '14 at 0:39
...
