大约有 44,000 项符合查询结果（耗时：0.0641秒） [XML]
How to Set a Custom Font in the ActionBar Title?
How (if possible) could I set a custom font in a ActionBar title text(only - not the tab text) with a font in my assets folder? I don't want to use the android:logo option.
...
R script line numbers at error?
If I am running a long R script from the command line (R --slave script.R), how can I get it to give line numbers at errors?
...
How can I add an item to a SelectList in ASP.net MVC
...
What if you actually do insist on the value of 0? If the value is null/an empty string, it can cause problems with model binding.
– Kjensen
Nov 12 '09 at 13:45
...
What is the colon operator in Ruby?
...e
So, comparing a string to a string using equal? fails because they're different objects, even if they are equal content. == compares the content, and the equivalent checks with symbols are much faster.
user system total real
string 0.370000 0.000000 0....
C-like structures in Python
...thon 2.6. It's also possible to use Raymond Hettinger's named tuple recipe if you need to support Python 2.4.
It's nice for your basic example, but also covers a bunch of edge cases you might run into later as well. Your fragment above would be written as:
from collections import namedtuple
MyStru...
Recommended way to embed PDF in HTML?
...
if you want to get sure it will be shown instead of auto download the pdf (as it happend to me) add type='application/pdf' to the embed tag
– Hassek
Sep 4 '12 at 15:44
...
How to drop SQL default constraint without knowing its name?
In Microsoft SQL Server, I know the query to check if a default constraint exists for a column and drop a default constraint is:
...
How do I make a column unique and index it in a Ruby on Rails migration?
...,
add_index :table_name, [:column_name_a, :column_name_b], unique: true
If you get "index name... is too long", you can add name: "whatever" to the add_index method to make the name shorter.
For fine-grained control, there's a "execute" method that executes straight SQL.
That's it!
If you are...
Converting an int to std::string
...
std::to_string() does not work in MinGW, if anyone cares.
– Archie
Nov 9 '15 at 8:55
3
...
How do I fix certificate errors when running wget on an HTTPS URL in Cygwin?
... solution after all.
First, you need to install the cygwin package ca-certificates via Cygwin's setup.exe to get the certificates.
Do NOT use curl or similar hacks to download certificates (as a neighboring answer advices) because that's fundamentally insecure and may compromise the system.
Seco...