大约有 30,000 项符合查询结果（耗时：0.0720秒） [XML]
What is the difference between the | and || or operators?
... lord! Why would they give you the rope to hang yourself! I hated that about VB.NET - the OrElse and AndAlso keywords!
– Jarrod Dixon♦
Sep 6 '08 at 8:09
24
...
What's the difference between unit, functional, acceptance, and integration tests? [closed]
...ing on where you look, you'll get slightly different answers. I've read about the subject a lot, and here's my distillation; again, these are slightly wooly and others may disagree.
Unit Tests
Tests the smallest unit of functionality, typically a method/function (e.g. given a class with a particu...
How to return result of a SELECT inside a function in PostgreSQL?
...requency(_max_tokens int)
RETURNS TABLE (txt text -- also visible as OUT parameter inside function
, cnt bigint
, ratio bigint) AS
$func$
BEGIN
RETURN QUERY
SELECT t.txt
, count(*) AS cnt -- column alias only visible inside
...
Separators for Navigation
...ncrease you speed of execution as it will not load any image. just test it out.. :)
share
|
improve this answer
|
follow
|
...
How do I force git to use LF instead of CR+LF under windows?
I want to force git to checkout files under Windows using just LF not CR+LF . I checked the two configuration options but I was not able to find the right combination of settings.
...
What is the most efficient way to create a dictionary of two pandas Dataframe columns?
...
In [9]: pd.Series(df.Letter.values,index=df.Position).to_dict()
Out[9]: {1: 'a', 2: 'b', 3: 'c', 4: 'd', 5: 'e'}
Speed comparion (using Wouter's method)
In [6]: df = pd.DataFrame(randint(0,10,10000).reshape(5000,2),columns=list('AB'))
In [7]: %timeit dict(zip(df.A,df.B))
1000 loops, b...
IllegalMonitorStateException on wait() call
...t.wait() as your exception is what happens when you try to gain access without holding the objects lock.
share
|
improve this answer
|
follow
|
...
Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
...
For each conflicted file you get, you can specify
git checkout --ours -- <paths>
# or
git checkout --theirs -- <paths>
From the git checkout docs
git checkout [-f|--ours|--theirs|-m|--conflict=<style>] [<tree-ish>] [--] <paths>...
--ours
-...
The type initializer for 'MyClass' threw an exception
... of the TypeInitializationException; it is likely to contain information about the underlying problem, and exactly where it occurred.
share
|
improve this answer
|
follow
...
How do I revert a Git repository to a previous commit?
... fool around, then come back to where you are, all you have to do is check out the desired commit:
# This will detach your HEAD, that is, leave you with no branch checked out:
git checkout 0d1d7fc32
Or if you want to make commits while you're there, go ahead and make a new branch while you're at it...