大约有 47,000 项符合查询结果（耗时：0.0803秒） [XML]
CocoaPods - use specific pod version
I am using CocoaPods for a macOS app. I have compilation errors with AFNetworking (current version, 1.2.1) and saw that these didn't exist in the previous version (1.2.0).
...
Symfony 2 EntityManager injection in service
I've created my own service and I need to inject doctrine EntityManager, but I don't see that __construct() is called on my service, and injection doesn't work.
...
How do I set a column value to NULL in SQL Server Managem>me m>nt Studio?
How do I clear the value from a cell and make it NULL?
6 Answers
6
...
int value under 10 convert to string two digit number
...g("00")
or
i.ToString("000")
depending on what you want
Look at the MSDN article on custom num>me m>ric format strings for more options: http://msdn.microsoft.com/en-us/library/0c899ak8(VS.71).aspx
share
|
...
Force line-buffering of stdout when piping to tee
...y, stdout is line-buffered. In other words, as long as your printf argum>me m>nt ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
...
Rails 4: before_filter vs. before_action
...rs creates CRUD operations with before_action not before_filter . It seems to do the sam>me m> thing. So what's the difference between these two?
...
HttpServletRequest - how to obtain the referring URL?
I need to log URLs that are linking to my site in a Java Servlet.
4 Answers
4
...
Cost of exception handlers in Python
... question , the accepted answer suggested replacing a (very cheap) if statem>me m>nt in Python code with a try/except block to improve performance.
...
Find and replace string values in list
....replace('[br]', '<br />') for w in words]
These are called List Comprehensions.
share
|
improve this answer
|
follow
|
...
What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statem>me m>nts, but for readability I find it helps to include them all, so that if you are l...