prefix

1.打开vscode->设置->用户代码片段 2.选择新建全局代码片段 3.输入代码段文件名 4.设置全局代码段 "console.log": { //代码段名称 "prefix": "log", //代码段前缀 "body": [ "console.log($1);" //代码段 $1表示光标插入的位置 } 5.设置局部代码段,在以下文件中单独设置代码段 （1）bat.json （2）html.json （3）php.json 6.设置php.json代码段 "header utf-8": { "prefix": "hu8", "body": [ "header('content-type:text/html;charset=utf-8');" ], "description": "header utf-8" }, // 设置 ptr 打印复杂数据类型 "ptr": { "prefix": "ptr", "body": [ "echo '<pre>';", "print_r($1);", "echo '</pre>';" ], "description": "ptr" } 7.我的全局代码段 "new Vue":{ "prefix": "vm", "body": [ "var vm = new Vue({", "el: '#app',", "data: {", "", "},",

I was wondering if .NET offers any standard functionality for doing a prefix search through a list or a dictionary object. I came across the StringDictionary , but couldn't figure out if it can do that for me. And if it can do a prefix search, can it also do substring search or let me search using something like a regular expression? Thanks in advance. jason StringDictionary is merely a hash table where the keys and values are string s. This existed before generics (when Dictionary<string, string> was not possible). The data structure that you want here is a trie . There are implementations on

1、下载Nginx 　　官网地址：https://nginx.org/download/ 　　也可用命令安装： wget http://nginx.org/download/nginx -1.13 .7.tar.gz 2. 安装 1 首先安装以下内容 yum -y install gcc pcre-devel zlib-devel openssl openssl-devel 2 创建文件夹/usr/local/nginx $ cd /usr/local/nginx $ tar -zxvf nginx-1.9.9.tar.gz #解压 //进入nginx目录 $ cd /usr/local/nginx //执行命令 $ ./configure //执行make命令 $ make //执行make install命令 $ make install nginx编译选项 make是用来编译的，它从Makefile中读取指令，然后编译。 make install是用来安装的，它也从Makefile中读取指令，安装到指定的位置。 configure命令是用来检测你的安装平台的目标特征的。它定义了系统的各个方面，包括nginx的被允许使用的连接处理的方法，比如它会检测你是不是有CC或GCC，并不是需要CC或GCC，它是个shell脚本，执行结束时，它会创建一个Makefile文件

I was getting a little confused with the representation of different units of bytes. It is accepted throughout that 1 byte = 8 bits. However, in a lot of sources I have seen that 1 kiloByte = 2^10 bytes = 1024 bytes AND 1 kiloByte = 1000 bytes Doesn't this contradict as in both cases it is stated that 1 byte is 8 bits...? Different sources claim different reasons for these different representations, thus I am not sure what the most important/real reason is for this rather confusing difference in representation. Can someone please explain and clarify? It is accepted throughout that 1 byte = 8

在Xcode6之前，创建一个新工程xcode会在Supporting files文件夹下面自动创建一个“工程名-Prefix.pch”文件，也是一个头文件，pch头文件的内容能被项目中的其他所有源文件共享和访问。是一个预编译文件。 首先说一下pch的作用： 1.存放一些全局的宏(整个项目中都用得上的宏) 2.用来包含一些全部的头文件(整个项目中都用得上的头文件) 3.能自动打开或者关闭日志输出功能 虽然用了很久的Xcode6但是项目是xcode5之前创建好的，所以一开始并没有发现缺少了这个pch文件。苹果为什么要这么做呢，原因可能是因为大家把大量的头文件和宏定义放到pch里边，导致编译时间过长。苹果去掉他可能是要加快编译时间增加用户体验。虽然失去了编程的便利性。不得不佩服苹果的以用户为中心的思考方式。更详细的讨论可以去Stackoverflow上去看http://stackoverflow.com/questions/24158648/why-isnt-projectname-prefix-pch-created-automatically-in-xcode-6。 如何在Xcode中添加pch文件： Command+N，打开新建文件窗口：ios->other->PCH file，创建一个pch文件 2 在工程的TARGETS里边Building Setting中搜索Prefix

if I have a list of strings e.g. ["a143.txt", "a9.txt", ] how can I sort it in ascending order by the numbers in the list, rather than by the string. I.e. I want "a9.txt" to appear before "a143.txt" since 9 < 143 . thanks. It's called "natural sort order", From http://www.codinghorror.com/blog/2007/12/sorting-for-humans-natural-sort-order.html Try this: import re def sort_nicely( l ): """ Sort the given list in the way that humans expect. """ convert = lambda text: int(text) if text.isdigit() else text alphanum_key = lambda key: [ convert(c) for c in re.split('([0-9]+)', key) ] l.sort( key