Tag：Ending
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The process of initializing std:: string with illegal c style string (null pointer or not ending with ‘\0’) in c++ standard library
There are two possible error conditions when initializing std:: string with C-style string: Pass in null pointer, The passed in C-style string does not end with ‘\0’. In g++ (GCC) 11.2.0, the code of initializing std:: string (basic_string) with C-style string is as follows: basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()) : _M_dataplus(_M_local_data(), __a) […]
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Instance of basename command in Linux system
Basename is a practical gadget in the command line, which can delete directories and suffixes from a given file name.System environmentCentos7 How to use basename commandIn centos7 system, the basename command has been installed by default, which is included in the coreutils installation package.Instance of basename command in Linux instance of basename command in LinuxBasename […]
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（1） Redis data structure: SDS and linked list
Recently, I was reading redis design and structure. Organized some notes. SDS The strings in redis basically use their own defined sdshdr structure. struct sdshdr { int len; int free; char buf[]; }; lenProperty records the length of the current string. It is worth noting that this length does not include\0freeWhen it is 0, it […]
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Using supervisor in laravel
1 superviosr installation sudo pip install supervisor 2 supervisor configuration //Run this command to generate a default configuration file echo_supervisord_conf > /etc/supervisord.conf //After successful generation, open and edit this file, open the comments of the last include block, and modify them as follows: [include] files = /etc/supervisor/*.conf The newly added supervisor configuration file is placed […]
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JSP from simple to deep (11) — tag library
JSP 1.1 proposes a method of extending JSP flags, which is named “flag library”. These libraries allow additional flags like jsp:include or jsp:forward, but they are not prefixed with jsp: and they also attach some features. To introduce the logo library, we use the blazix logo library as an example in this tutorial. This logo […]
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Imagick expansion installation of PHP
1： Installing imagick extension under Windows 1. download imageck Imageck download addressImagick extended download address 2. install imageck [1] Unzip the downloaded installation package, and then_ imagick. DLL to your php/etc directory, and copy the files at the end of other DLLs to your PHP directory [2] Open php INI file add extension=php_imagick.dll [3] Restart […]
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Fat programmer: from design drawings to NPM publishing components
What virtue does the design drawing get? What did YY in my mind We can see from the design drawings that there are two kinds of toast at present. When packaging components, we should consider that other styles of components may be added later, so we should try to be extensible when designing There must […]
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Oeasy teaches you to play VIM – 14 – # beginning and end of line
Beginning and end of line Recall the last lesson We understand this timeBig wordsandSmall words Small wordsIt’s a word in our regular sense cover=、”Equipunctuation separated words Big wordsIt includes=、”Equal punctuation Can only be separated by spaces, tabs, and line breaks W、E、BCan have big word movement But if I want to jump to the beginning or […]
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JQuery foundation – selector
Through jQuery, you can select (query, query) HTML elements and perform “actions” on them $(document). Ready (function() {}) can be abbreviated as $(funding() {}) JQuery element selector JQuery uses CSS selectors to select HTML elements. $(“P”) select the < p > element. $(“p.intro”) select all < p > elements of class = “intro”. $(“p#demo”) selects […]
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Oeasy teaches you to play VIM – 15 – # in line search
Beginning and end of line Recall the last lesson Last time I learned to jump directly to the beginning and end The most important thing is^、$ ^To the beginning $To the end I amount to^i A amount to$a Find help What else? Or continuemotioninside ^ 、$Find later Still moving left and right, I found one […]
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Pay attention to encoding in string conversion
Just as the precision of floating-point conversion will be lost, the conversion of bytes and strings will also have a smart ending. Although it looks the same, it may not be the person you like @@@code var bs = new byte[16] { 120, 104, 0, 0, 0, 0, 0, 0, 32, 65, 57, 16, 132, […]