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程序员之网络安全系列（三）：数据加密之对称加密算法 - 更多技术 - 清泛网...
程序员之网络安全系列（三）：数据加密之对称加密算法前文回顾假如，明明和丽丽相互不认识，明明想给丽丽写一封情书，让隔壁老王送去如何保证隔壁老王不能看到情书内容？（保密性)如何保证隔壁...前文回顾
假如，明明...
Process escape sequences in a string in Python
...ecs
ESCAPE_SEQUENCE_RE = re.compile(r'''
( \\U........ # 8-digit hex escapes
| \\u.... # 4-digit hex escapes
| \\x.. # 2-digit hex escapes
| \\[0-7]{1,3} # Octal escapes
| \\N\{[^}]+\} # Unicode characters by name
| \\[\\'"abfnrtv] # Single-...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... Matrix 通过接入各种性能监控方案，对性能监控项的异常数据进行采集和分析，输出相应的问题分析、定位与优化建议，从而帮助开发者开发出更高质量的应用。当前工具监控范围包括：崩溃、卡顿和爆内存。
6、分布式及事...
三个退出程序消息：WM_CLOSE、WM_DESTROY、WM_QUIT区别 - C/C++ - 清泛网 -...
...
);
1. 当收到WM_CLOSE消息，你可以做两件事儿。一件是你接受默认的处理并返回一个值，你若这样做了，应用程序或窗口按照计划关闭；或者，你返回0，应用程序或窗口将保持原样。以下是代码的基本部分：
if (msg == WM_CLOSE) ...
How to create GUID / UUID?
...ion 4 compliant solution that solves that issue by offsetting the first 13 hex numbers by a hex portion of the timestamp, and once depleted offsets by a hex portion of the microseconds since pageload. That way, even if Math.random is on the same seed, both clients would have to generate the UUID th...
how to check the jdk version used to compile a .class file [duplicate]
...
Alternatively, if you open the class file in a hex editor you can look at bytes 7 and 8. The number will map to the numbers given in the above answer. E.g. 00 2E -> JDK 1.2 = 46 (0x2E hex). Useful if you don't have access to javap. ref: en.wikipedia.org/wiki/Java_class...
What is the exact meaning of IFS=$'\n'?
...ne to three digits)
\xHH
the eight-bit character whose value is the hexadecimal value HH (one or two hex digits)
\uHHHH
the Unicode (ISO/IEC 10646) character whose value is the hexadecimal value HHHH (one to four hex digits)
\UHHHHHHHH
the Unicode (ISO/IEC 10646) character whose...
Android get color as string value
...
Just for the sake of easy copypasta:
"#" + Integer.toHexString(ContextCompat.getColor(getActivity(), R.color.some_color));
Or if you want it without the transparency:
"#" + Integer.toHexString(ContextCompat.getColor(getActivity(), R.color.some_color) & 0x00ffffff);
...
SVG fill color transparency / alpha?
...
fill="#044B9466"
This is an RGBA color in hex notation inside the SVG, defined with hex values. This is valid, but not all programs can display it properly...
You can find the browser support for this syntax here: https://caniuse.com/#feat=css-rrggbbaa
As of August...
jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON
...ting... but did they mean any character may be escaped if it consists of 4 hex digits? According to both the state diagram above and the one in section 7 of the RFC, escape of a single quote as written \' is still not allowed. It would be nice if the RFC was more explicit on this point.
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