大约有 15,000 项符合查询结果（耗时：0.0567秒） [XML]
How does SSL really work?
...ce then, this has turned into a fairly popular question/answer, so I have expanded it a bit and made it more precise.
TLS Capabilities
"SSL" is the name that is most often used to refer to this protocol, but SSL specifically refers to the proprietary protocol designed by Netscape in the mid 90's....
PHP - Get key name of array value
...ort($arr)) removes the key names, and resorts to the default 0,1,2,etc index values. So if you're sorting, use asort (asort($arr)). This maintains the key values. php.net/manual/en/function.asort.php
– Rich701
Mar 9 '17 at 16:26
...
How to check if command line tools is installed
I have a macbook pro with OS X 10.8.2.
XCode is installed. I know this as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is ...
string.ToLower() and string.ToLowerInvariant()
...oLower might produce a culture specific lowercase letter, that you aren't expecting. Such as producing ınfo without the dot on the i instead of info and thus mucking up string comparisons. For that reason, ToLowerInvariant should be used on any non-language-specific data. When you might have use...
Can a shell script set environment variables of the calling shell? [duplicate]
...
Use the "dot space script" calling syntax. For example, here's how to do it using the full path to a script:
. /path/to/set_env_vars.sh
And here's how to do it if you're in the same directory as the script:
. set_env_vars.sh
These execute the script under the...
How to set breakpoints on future shared libraries with a command flag
.... I'm trying to set a breakpoint on a function in a shared library (the Unix equivalent of a DLL) . My cmds.gdb looks like this:
...
Transform DateTime into simple Date in Ruby on Rails
...
DateTime#to_date does exist with ActiveSupport:
$ irb
>> DateTime.new.to_date
NoMethodError: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> D...
What's the proper way to install pip, virtualenv, and distribute for Python?
... environment.
Use that bootstrap environment to create more!
Here is an example in bash:
# Select current version of virtualenv:
VERSION=12.0.7
# Name your first "bootstrap" environment:
INITIAL_ENV=bootstrap
# Set to whatever python interpreter you want for your first environment:
PYTHON=$(which...
How to disassemble one single function using objdump?
...simplest approach. You can even do it as a one-liner, like:
gdb -batch -ex 'file /bin/ls' -ex 'disassemble main'
share
|
improve this answer
|
follow
|
...
Default constructor vs. inline field initialization
...
Initialisers are executed before constructor bodies. (Which has implications if you have both initialisers and constructors, the constructor code executes second and overrides an initialised value)
Initialisers are good when you always need t...