大约有 45,000 项符合查询结果（耗时：0.0500秒） [XML]
How to install therubyracer gem on 10.10 Yosemite?
...xec rake clean build binary
gem install pkg/libv8-3.16.14.3-x86_64-darwin-12.gem #note that libv8 version may change, so tab through files in pkg/, also remember to use the one with version specified
then just bundle your project gems
this is the only way it worked for me on 10.10 (ruby 2.1.2)
...
Why is there no xrange function in Python3?
... using timeit instead of trying to do it manually with time.
First, Apple 2.7.2 64-bit:
In [37]: %timeit collections.deque((x for x in xrange(10000000) if x%4 == 0), maxlen=0)
1 loops, best of 3: 1.05 s per loop
Now, python.org 3.3.0 64-bit:
In [83]: %timeit collections.deque((x for x in range(...
Rank function in MySQL
...
270
One option is to use a ranking variable, such as the following:
SELECT first_name,
...
Windows batch: formatted date into variable
...
152
You can get the current date in a locale-agnostic way using
for /f "skip=1" %%x in ('wmic os ge...
Difference between >>> and >>
...
421
>> is arithmetic shift right, >>> is logical shift right.
In an arithmetic shif...
What characters are allowed in DOM IDs? [duplicate]
..._" | [a-z] | [#xC0-#xD6] |
[#xD8-#xF6] | [#xF8-#x2FF] |
[#x370-#x37D] | [#x37F-#x1FFF] |
[#x200C-#x200D] | [#x2070-#x218F] |
[#x2C00-#x2FEF] | [#x3001-#xD7FF] |
[#xF900-#...
What is the preferred/idiomatic way to insert into a map?
...
92
First of all, operator[] and insert member functions are not functionally equivalent :
The ope...
Confused about stdin, stdout and stderr?
...
258
Standard input - this is the file handle that your process reads to get information from you.
...
Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
...
1
2
Next
1474
...