大约有 10,170 项符合查询结果（耗时：0.0211秒） [XML]
Which comment style should I use in batch files?
I've been writing some batch files, and I ran into this user guide , which has been quite informative. One thing it showed me was that lines can be commented not just with REM , but also with :: . It says:
...
Unignore subdirectories of ignored directories in Git
Let's say I have ignored a directory, but I want to unignore specific subdirectories therein. So I have the setup:
5 Answer...
typedef fixed length array
I have to define a 24-bit data type.I am using char[3] to represent the type. Can I typedef char[3] to type24 ? I tried it in a code sample. I put typedef char[3] type24; in my header file. The compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C...
Simplest two-way encryption using PHP
What is the simplest way of doing two way encryption in common PHP installs?
6 Answers
...
How to return an array from JNI to Java?
I am attempting to use the android NDK.
4 Answers
4
...
Dictionary vs Object - which is more efficient and why?
What is more efficient in Python in terms of memory usage and CPU consumption - Dictionary or Object?
8 Answers
...
When should I use the Visitor Design Pattern? [closed]
I keep seeing references to the visitor pattern in blogs but I've got to admit, I just don't get it. I read the wikipedia article for the pattern and I understand its mechanics but I'm still confused as to when I'd use it.
...
Why do you need to create a cursor when querying a sqlite database?
I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd.
...
Any difference between First Class Function and High Order Function
I'm wondering whether/what difference between First Class Function and High Order Function .
6 Answers
...
Different floating point result with optimization enabled - compiler bug?
The below code works on Visual Studio 2008 with and without optimization. But it only works on g++ without optimization (O0).
...