大约有 43,000 项符合查询结果（耗时：0.0436秒） [XML]
How can I disable ARC for a single file in a project?
...
For Xcode 4.3 the easier way might be: Edit/Refactor/Convert to objective-C ARC, then check off the files you don't want to be converted. I find this way the same as using the compiler flag above.
shar...
Replacing column values in a pandas DataFrame
...e this:
w['female'] = w['female'].map({'female': 1, 'male': 0})
(Here I convert the values to numbers instead of strings containing numbers. You can convert them to "1" and "0", if you really want, but I'm not sure why you'd want that.)
The reason your code doesn't work is because using ['femal...
Get class name of object as string in Swift
...me // = "Foo"
Foo.typeName // = "Foo"
Tested with class, struct and enum.
share
|
improve this answer
|
follow
|
...
Creating an array of objects in Java
I am new to Java and for the time created an array of objects in Java.
8 Answers
8
...
Best practices for circular shift (rotate) operations in C++
Left and right shift operators (>) are already available in C++.
However, I couldn't find out how I could perform circular shift or rotate operations.
...
How to return 2 values from a Java method?
...sider creating a class that represents the result that you want to return, and return an instance of that class. Give the class a meaningful name. The benefits of this approach over using an array are type safety and it will make your program much easier to understand.
Note: A generic Pair class, a...
What exactly is an “open generic type” in .NET? [duplicate]
I was going through Asp.Net MVC lesson and learned that, for a method to qualify as an action for a controller,
4 Answer...
Java code for getting current time [duplicate]
...a.time
ZonedDateTime zdt = ZonedDateTime.now();
If needed for old code, convert to java.util.Date. Go through at Instant which is a moment on the timeline in UTC.
java.util.Date date = java.util.Date.from( zdt.toInstant() );
Time Zone
Better to specify explicitly your desired/expected time zo...
Create a pointer to two-dimensional array
...ow they do
uint8_t (*matrix_ptr)[][20] = l_matrix;
If you fix the error and add the address-of operator & like in the following snippet
uint8_t (*matrix_ptr)[][20] = &l_matrix;
Then that one creates a pointer to an incomplete array type of elements of type array of 20 uint8_t. Because ...
C++11 reverse range-based for-loop
...e key observation is that range-based for-loops work by relying on begin() and end() in order to acquire the range's iterators. Thanks to ADL, one doesn't even need to define their custom begin() and end() in the std:: namespace.
Here is a very simple-sample solution:
// --------------------------...