大约有 13,071 项符合查询结果（耗时：0.0351秒） [XML]
How do you write a migration to rename an ActiveRecord model and its table in Rails?
...a better set of names for my models in my Rails app. Is there any way to use a migration to rename a model and its corresponding table?
...
Are class names in CSS selectors case sensitive?
I keep reading everywhere that CSS is not case sensitive, but I have this selector
4 Answers
...
When to add what indexes in a table in Rails
I have a question about Rails database.
3 Answers
3
...
Difference between CC, gcc and g++?
...d C++ code in terms of assembly
code generation, available libraries, language features, etc.?
3 Answers
...
Is GridFS fast and reliable enough for production?
I develop a new website and I want to use GridFS as storage for all user uploads, because it offers a lot of advantages compared to a normal filesystem storage.
...
How does git compute file hashes?
The SHA1 hashes stored in the tree objects (as returned by git ls-tree ) do not match the SHA1 hashes of the file content (as returned by sha1sum )
...
START_STICKY and START_NOT_STICKY
...T_STICKY and START_NOT_STICKY while implementing services in android? Could anyone point out to some standard examples.. ?
...
Configuring Log4j Loggers Programmatically
I am trying to use SLF4J (with log4j binding) for the first time.
4 Answers
4
...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
... This is the right answer so I don't want to add another. He could also use list.append to really put his mind at ease. docs.python.org/2/tutorial/datastructures.html
– NG.
Dec 4 '12 at 0:15
...
Is it safe to remove selected keys from map within a range loop?
...
This is safe! You can also find a similar sample in Effective Go:
for key := range m {
if key.expired() {
delete(m, key)
}
}
And the language specification:
The iteration order over maps is not specified and is not gua...