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【解决】Missing FindPython3.cmake - C/C++ - 清泛网 - 专注C/C++及内核技术
...访问：https://cmake.org/files/，下载最新版 cmake-3.xx.x-Linux-x86_64
2、解压 tar -zxvf cmake-3.xx.x-Linux-x86_64
3、mv cmake-3.xx.x-Linux-x86_64 /opt/cmake-3.xx.x
ln -sf /opt/cmake-3.xx.x/bin/* /usr/bin/
4、检查版本： cmake --version
参考：https://m.linuxidc.com/Linu...
How to encrypt/decrypt data in php?
...u can also convert the binary data into a textual representation using base64_encode() or bin2hex(), doing so requires between 33% to 100% more storage space.
Decryption
Decryption of the stored values is similar:
function pkcs7_unpad($data)
{
return substr($data, 0, -ord($data[strlen($data) ...
Convert floats to ints in Pandas?
...>> cols = ['A', 'B']
>>> df[cols] = df[cols].applymap(np.int64)
>>> print(df)
... A B C D
... 0 8 0 1.916283 6.226750
... 1 1 9 9.277504 8.522808
... 2 1 4 2.700118 7.739108
Or for a single column with apply():
>>> df['C'] = df['C']...
Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
...
> ruby -v
ruby 2.0.0p481
> rvm list
rvm rubies
ruby-2.1.2 [ x86_64 ]
=* ruby-2.2.1 [ x86_64 ]
ruby-2.2.3 [ x86_64 ]
Also, rvm current failed.
> rvm current
Warning! PATH is not properly set up, '/Users/randallreed/.rvm/gems/ruby-2.2.1/bin' is not at first place...
The error mes...
Is there any way to specify a suggested filename when using data: URI?
...ownload attribute:
<a download="logo.gif" href="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">Download transparent png</a>
Javascript only: you can save any data URI with this code:
function saveAs(uri, filename) {
var link = docume...
Set 4 Space Indent in Emacs in Text Mode
...right.
'(tab-stop-list (quote (4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100 104 108 112 116 120))))
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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...ening port can accept more than one connection simultaneously.
There is a '64K' limit that is often cited, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
< ...
富含哲理的几则笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...啦!你追不上的!”我必须追上它,这人气喘吁吁地说:“我是这辆车的司机!”
3.某日,张三在山间小路开车,正当他悠哉地欣赏美丽的风景时,突然迎面开来一辆货车,满口黑牙的司机摇下窗 户对他大喝了一声:“猪!”张三越想越...
Ubuntu下CodeBlock开发环境配置 - C/C++ - 清泛网 - 专注C/C++及内核技术
Ubuntu下CodeBlock开发环境配置Code::Blocks是一款功能强悍的C、C++ IDE，工具小巧灵活、跨平台、支持SVN、代码高亮、格式化、国际化（软件界面语言可定制为中文）、强大... Code::Blocks是一款功能强悍的C、C++ IDE，工具小巧灵活、跨平...
ATL COM开发入门（一）（JS调用ActiveX/COM组件） - C/C++ - 清泛网 - 专注C/C++及内核技术
...用ActiveX/COM组件）ATL（Active Template Library）动态模板库，是一个类库，可以使用它进行COM开发。本文通过一个基础入门的例子，简要介绍如何定义、实现C...ATL（Active Template Library）动态模板库，是一个类库，可以使用它进行COM开...