大约有 30,000 项符合查询结果(耗时:0.0737秒) [XML]

https://stackoverflow.com/ques... 

Types in MySQL: BigInt(20) vs Int(20)

...values than can be stored in their respective number of bytes. That means 232 values in an INT and 264 values in a BIGINT. The 20 in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept. Pr...
https://www.tsingfun.com/it/tech/1011.html 

Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术

Awk学习笔记awk一种编程语言,用于在linux unix下对文本和数据进行处理。数据可以来自标准输入、一个或多个文件,或其它命令的输出。它支持用户自定义函数和动态正则表达式等先进功能,linux unix下的一个强大编程工具。 ...
https://stackoverflow.com/ques... 

Simple insecure two-way data “obfuscation”?

...ork with byte arrays. NOTE: you should use different values in the Key (32 bytes) and Vector (16 bytes) arrays! You wouldn't want someone to figure out your keys by just assuming that you used this code as-is! All you have to do is change some of the numbers (must be <= 255) in the Key and V...
https://stackoverflow.com/ques... 

Turn a string into a valid filename?

..."._- ")) – hardmooth May 9 '16 at 6:32  |  show 2 more comme...
https://www.tsingfun.com/ilife/tech/784.html 

那些年 和360分道扬镳的小伙伴们 - 资讯 - 清泛网 - 专注C/C++及内核技术

...在此之前,备受争议的360还曾和哪些企业合作过,结果又如何的呢?360和酷派分手看来已经不可避免。在此之前,备受争议的360还曾和哪些企业合作过,结果又如何的呢? 91无线 在百度以18.5亿美元投资91之前,360曾和91结...
https://www.tsingfun.com/ilife/life/1830.html 

一花一世界,一笑一尘埃 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...,叫重生。这世上任何地方,都可以生长;任何去处,都归宿。那么,别来找我,我亦不去寻你。守着剩下的流年,看一段岁月静好,现实安稳。 5、繁华尽处,寻一处无人山谷,建一木制小屋,铺一青石小路,与你晨...
https://www.tsingfun.com/it/tech/2135.html 

[科普] __MACOSX什么文件夹? - 更多技术 - 清泛网 - 专注C/C++及内核技术

[科普] __MACOSX什么文件夹?(如图,一般的设计源文件都会有__MACOSX这个目录)以下为网上搜到的资料:MacOS作为他们的开发环境。例如,许多来自领先的网络框架组织的... (如图,一般的设计源文件都会有__MACOSX这个目录) ...
https://bbs.tsingfun.com/thread-2997-1-1.html 

ip地址用哪个扩展?AI助手为什么可以?直接导入IP地址的扩展,但在扩展文档...

...但在扩展文档中没有。并且为什么AI导入的图。代码块都中文。而自己导入的扩展代码块都英文。你说 clientsocket 拓展吗?tcp 连接的。 我们自己做个加强版,中文的。你导入的可能原版,英文的。帮助菜单,拓展文...
https://www.tsingfun.com/it/tech/1345.html 

bat 写注册表 及权限提升 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...- REM --> Check for permissions >nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system" REM --> If error flag set, we do not have admin. if '%errorlevel%' NEQ '0' ( echo Requesting administrative privileges... goto UACPrompt ) else ( goto gotAdmin ) :UACP...
https://stackoverflow.com/ques... 

How to measure time in milliseconds using ANSI C?

...time_high = (unit64_t) tcounter.ulHi; timestamp = (time_high << 32) | time_low; } scale the ticks to elapsed time, i.e. to microseconds: uint64_t usecs = (prev_timestamp - timestamp) / (freq / 1000000); Example implementation You can take a look at the plibsys library which implemen...