大约有 10,900 项符合查询结果（耗时：0.0385秒） [XML]
How can I use Bash syntax in Makefile targets?
.../bash at the top of your makefile, and you should be good to go.
BTW: You can also do this for one target, at least for GNU Make. Each target can have its own variable assignments, like this:
all: a b
a:
@echo "a is $$0"
b: SHELL:=/bin/bash # HERE: this is setting the shell for b only
b:
...
Is there a python equivalent of Ruby's 'rvm'?
...
I'm confused. Where can you install different versions of python? It seems to be just using the system's version of python.
– docwhat
Oct 6 '10 at 0:50
...
How to save as a new file and keep working on the original one in Vim?
...
@Ioevborg when is that not the case? I just :w fname without reading your comment and the behavior seems to be the default.
– Blake
Oct 11 '14 at 22:15
...
What does the * * CSS selector do?
Recently I came across * * in CSS .
5 Answers
5
...
Java 8 Stream and operation on arrays
I have just discovered the new Java 8 stream capabilities. Coming from Python, I was wondering if there was now a neat way to do operations on arrays like summing, multiplying two arrays in a "one line pythonic" way ?
...
How to find out which fonts are referenced and which are embedded in a PDF document
...AAAA+Arial-Black TrueType yes yes yes 53 0
CAAAAA+Tahoma TrueType yes yes yes 28 0
DAAAAA+Wingdings-Regular TrueType yes yes yes 43 0
EAAAAA+Webdings TrueType yes yes yes ...
How to find children of nodes using BeautifulSoup
...crummy.com/software/BeautifulSoup/bs4/doc/#the-recursive-argument
In your case as you want link1 which is first direct child:
# for only first direct child
soup.find("li", { "class" : "test" }).find("a", recursive=False)
If you want all direct children:
# for all direct children
soup.find("li",...
How do I find which transaction is causing a “Waiting for table metadata lock” state?
...
SHOW ENGINE INNODB STATUS \G
Look for the Section -
TRANSACTIONS
We can use INFORMATION_SCHEMA Tables.
Useful Queries
To check about all the locks transactions are waiting for:
USE INFORMATION_SCHEMA;
SELECT * FROM INNODB_LOCK_WAITS;
A list of blocking transactions:
SELECT *
FROM INNO...
What is The difference between ListBox and ListView
What is the difference between WPF's ListBox and ListView? I can not find any significant difference in their properties. Is there different typical use?
...
Iterating Over Dictionary Key Values Corresponding to List in Python
...gue.keys():
runs_scored, runs_allowed = map(float, league[team])
You can also iterate over both the keys and the values at once by iterating over league.items():
for team, runs in league.items():
runs_scored, runs_allowed = map(float, runs)
You can even perform your tuple unpacking whil...