大约有 11,287 项符合查询结果（耗时：0.0312秒） [XML]
MySql: Tinyint (2) vs tinyint(1) - what is the difference?
I knew boolean in mysql as tinyint (1) .
4 Answers
4
...
“x not in y” or “not x in y”
When testing for membership, we can use:
6 Answers
6
...
How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
...dio 2013 is actually pretty easy to accomplish with two steps. In fact, as bytebender’s comment indicates, these same steps should apply to and work for MVC 1 projects. However, I haven’t tested them and therefore cannot guarantee that they do in fact work.
Assuming that you have not already do...
How do I increase the number of displayed lines of a Java stack trace dump?
Is there a way to make Throwable.printStackTrace(PrintStream s) print the full stack trace, so that I can see beyond the final line of "... 40 more" ?
...
Simplest way to serve static data from outside the application server in a Java web application
I have a Java web application running on Tomcat. I want to load static images that will be shown both on the Web UI and in PDF files generated by the application. Also new images will be added and saved by uploading via the Web UI.
...
Join vs. sub-query
I am an old-school MySQL user and have always preferred JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why.
...
How to list all methods for an object in Ruby?
How do I list all the methods that a particular object has access to?
8 Answers
8
...
Why does Math.round(0.49999999999999994) return 1?
...
Summary
In Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0.49999999999999994 i...
How to display gpg key details without importing it?
...e to view the details of the gpg key as it comes in the file. Is this possible without importing it into a key ring?
8 Answ...
Reading a binary file with python
I find particularly difficult reading binary file with Python. Can you give me a hand?
I need to read this file, which in Fortran 90 is easily read by
...