大约有 45,000 项符合查询结果（耗时：0.0542秒） [XML]
Why aren't superclass __init__ methods automatically invoked?
Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following?
...
Method chaining - why is it a good practice, or not?
Method chaining is the practice of object methods returning the object itself in order for the result to be called for another method. Like this:
...
What is the difference between a var and val definition in Scala?
What is the difference between a var and val definition in Scala and why does the language need both? Why would you choose a val over a var and vice versa?
...
Benefit of using Parcelable instead of serializing object
...le and Parcelable belongs to the way Android performs serialization in. It is used for example in passing data between activities. But I wonder, if there are any benefits in using Parcelable instead of classic serialization in case of saving state of my business objects to the internal memory f...
Inner join vs Where
...RCHAR(20)
);
The execution plan for the query using the inner join:
-- with inner join
EXPLAIN PLAN FOR
SELECT * FROM table1 t1
INNER JOIN table2 t2 ON t1.id = t2.id;
SELECT *
FROM TABLE (DBMS_XPLAN.DISPLAY);
-- 0 select statement
-- 1 hash join (access("T1"."ID"="T2"."ID"))
-- 2 table access ...
Why array implements IList?
See the definition of System.Array class
7 Answers
7
...
Set the table column width constant regardless of the amount of text in its cells?
...
I played with it for a bit because I had trouble figuring it out.
You need to set the cell width (either th or td worked, I set both) AND set the table-layout to fixed. For some reason, the cell width seems to only stay fixed if the...
Testing if object is of generic type in C#
...erform a test if an object is of a generic type. I've tried the following without success:
5 Answers
...
How to execute file I'm editing in Vi(m)
How to execute file that I'm editing in Vi(m) and get output in split window (like in SciTE)?
13 Answers
...
How does autowiring work in Spring?
I'm a little confused as to how the inversion of control ( IoC ) works in Spring .
11 Answers
...