大约有 47,000 项符合查询结果（耗时：0.0753秒） [XML]
Converting Stream to String and back…what are we missing?
I want to serialize objects to strings, and back.
8 Answers
8
...
Regex expressions in Java, \\s vs. \\s+
What's the difference between the following two expressions?
4 Answers
4
...
How to add “on delete cascade” constraints?
In PostgreSQL 8 is it possible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the latter?
...
Difference between static STATIC_URL and STATIC_ROOT on Django
I am confused by static root and want to clarify things.
3 Answers
3
...
Getting vertical gridlines to appear in line plot in matplotlib
I want to get both horizontal and vertical grid lines on my plot but only the horizontal grid lines are appearing by default. I am using a pandas.DataFrame from an sql query in python to generate a line plot with dates on the x-axis. I'm not sure why they do not appear on the dates and I have trie...
Where is the documentation for the values() method of Enum?
I declare an enum as :
3 Answers
3
...
Disable a Button
I want to disable a button ( UIButton ) on iOS after it is clicked. I am new to developing for iOS but I think the equivalent code on objective - C is this:
...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
I use an AsyncTask for loading operations that I implemented as an inner class.
4 Answers
...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
In the x86-64 Tour of Intel Manuals , I read
3 Answers
3
...
Java Reflection: How to get the name of a variable?
Using Java Reflection, is it possible to get the name of a local variable? For example, if I have this:
8 Answers
...