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转载 Ubuntu 命令行连接wifi

注:nmcli命令支持使用缩写(别名),譬如说 device——dev、connection——con、……1、建立和删除一个wifi连接创建wifi连接(SSID:Samsung-printer,密码:12345678,默认使用设备wlan0)的示例:$ nmcli device wifi connect Samsung-printerpassword 12345678每次命令执行后,会在/etc/NetworkManager/system-connections/目录下创建一个新文件.

2020-12-08 17:52:33 10657

转载 Ubuntu 学习

查看当前目录下的文件数量(不包含子目录中的文件)ls -l|grep "^-"| wc -l查看当前目录下的文件数量(包含子目录中的文件) 注意:R,代表子目录ls -lR|grep "^-"| wc -l查看当前目录下的文件夹目录个数(不包含子目录中的目录),同上述理,如果需要查看子目录的,加上Rls -l|grep "^d"| wc -l查询当前路径下的指定前缀名的目录下的所有文件数量例如:统计所有以“20161124”开头的目录下的全部文件数量ls .

2020-12-06 01:31:02 63

翻译 无重复字符的最长子串

无重复字符的最长子串[leetcode]题目给定一个字符串,请你找出其中不含有重复字符的 最长子串 的长度。示例 1:输入: “abcabcbb”输出: 3解释: 因为无重复字符的最长子串是 “abc”,所以其长度为 3。示例 2:输入: “bbbbb”输出: 1解释: 因为无重复字符的最长子串是 “b”,所以其长度为 1。示例 3:输入: “pwwkew”输出: 3解释: 因为无重复字符的最长子串是 “wke”,所以其长度为 3。请注意,你的答案必须是 子串 的长度,“pw

2020-12-04 00:49:09 94

翻译 ReactJS前端学习-组件生命周期

State & 生命周期生命周期是组件加载的一个流程初始化组件 渲染组件 更新组件 删除组件参考https://zh-hans.reactjs.org/docs/state-and-lifecycle.html#gatsby-focus-wrapper研究组件的生命周期 mounting加载组件 constructor() 构造器函数 初始化数据状态,比如state初始化 render() 返回一个Virtual DOM ...

2020-12-04 00:47:19 136

原创 ReactJS学习笔记-数据双向绑定

练习数据双向绑定<script>class App extends React.Component{ constructor(){ super() this.state = { name:"alxor" } this.changed = this.changed.bind(this); } changed(event) { this.setState(

2020-12-04 00:20:44 105

原创 OPTICS密度聚类

网上很多关于OPTICS的介绍,这里做一个整理和自己的理解。OPTICS是 Ordering Point To Idenfy the Cluster Structure 缩写。它是DBSCAN算法的一种改进算法,与DBSCAN算法相比,OPTICS算法对输入参数不敏感。OPTICS算法不显式生成数据聚类,它对数据对象集合进行排序,得到一个有序的对象列表,但其中包含足够的信息来提取聚类 Cl

2020-07-14 22:07:06 283

facedetector

The application wizard has created this VidCap application for you. This application not only demonstrates the basics of using the Microsoft Foundation Classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your VidCap application. VidCap.vcproj This is the main project file for VC++ projects generated using an application wizard. It contains information about the version of Visual C++ that generated the file, and information about the platforms, configurations, and project features selected with the application wizard. VidCap.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CVidCapApp application class. VidCap.cpp This is the main application source file that contains the application class CVidCapApp. VidCap.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. Your project resources are in 1033. res\VidCap.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file VidCap.rc. res\VidCap.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// The application wizard creates one dialog class: VidCapDlg.h, VidCapDlg.cpp - the dialog These files contain your CVidCapDlg class. This class defines the behavior of your application's main dialog. The dialog's template is in VidCap.rc, which can be edited in Microsoft Visual C++. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named VidCap.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. VidCap.manifest Application manifest files are used by Windows XP to describe an applications dependency on specific versions of Side-by-Side assemblies. The loader uses this information to load the appropriate assembly from the assembly cache or private from the application. The Application manifest maybe included for redistribution as an external .manifest file that is installed in the same folder as the application executable or it may be included in the executable in the form of a resource. ///////////////////////////////////////////////////////////////////////////// Other notes: The application wizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, you will need to redistribute the MFC DLLs. If your application is in a language other than the operating system's locale, you will also have to redistribute the corresponding localized resources MFC80XXX.DLL. For more information on both of these topics, please see the section on redistributing Visual C++ applications in MSDN documentation. /////////////////////////////////////////////////////////////////////////////

2015-09-22

navicat_pressium

最新navicat10 客户端。方便连接,查询,增加,删除。

2013-09-03

STLPort标准库

STLport 是一个多平台的 ANSI C++ 标准类库实现,具备很多高级特征,并且为效率,异常安全性和线程安全性做了优化,还做了许多扩展

2011-03-27

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