1123 lines
29 KiB
HTML
1123 lines
29 KiB
HTML
<!DOCTYPE html>
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<html class="theme-next gemini use-motion" lang="zh-Hans">
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<head><meta name="generator" content="Hexo 3.8.0">
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
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<meta name="theme-color" content="#222">
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<meta http-equiv="Cache-Control" content="no-transform">
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<meta http-equiv="Cache-Control" content="no-siteapp">
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<link href="/lib/fancybox/source/jquery.fancybox.css?v=2.1.5" rel="stylesheet" type="text/css">
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<link href="/lib/font-awesome/css/font-awesome.min.css?v=4.6.2" rel="stylesheet" type="text/css">
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<link href="/css/main.css?v=5.1.4" rel="stylesheet" type="text/css">
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<link rel="apple-touch-icon" sizes="180x180" href="/images/hackerrank.png?v=5.1.4">
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<link rel="icon" type="image/png" sizes="32x32" href="/images/hackerrank.png?v=5.1.4">
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<link rel="icon" type="image/png" sizes="16x16" href="/images/hackerrank.png?v=5.1.4">
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<link rel="mask-icon" href="/images/logo.svg?v=5.1.4" color="#222">
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<meta name="keywords" content="Hexo, NexT">
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<meta property="og:type" content="website">
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<meta property="og:title" content="混元霹雳手">
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<meta property="og:url" content="https://cool-y.github.io/categories/理论学习/index.html">
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<meta property="og:site_name" content="混元霹雳手">
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<meta property="og:locale" content="zh-Hans">
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<meta name="twitter:card" content="summary">
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<meta name="twitter:title" content="混元霹雳手">
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<script type="text/javascript" id="hexo.configurations">
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var NexT = window.NexT || {};
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var CONFIG = {
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root: '/',
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scheme: 'Gemini',
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version: '5.1.4',
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sidebar: {"position":"left","display":"post","offset":12,"b2t":false,"scrollpercent":false,"onmobile":false},
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fancybox: true,
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tabs: true,
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motion: {"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}},
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duoshuo: {
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userId: '0',
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author: '博主'
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},
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algolia: {
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applicationID: '',
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apiKey: '',
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indexName: '',
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hits: {"per_page":10},
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labels: {"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}
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}
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};
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</script>
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<link rel="canonical" href="https://cool-y.github.io/categories/理论学习/">
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<title>分类: 理论学习 | 混元霹雳手</title>
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</head>
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<body itemscope itemtype="http://schema.org/WebPage" lang="zh-Hans">
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<div class="container sidebar-position-left ">
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<div class="headband"></div>
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<header id="header" class="header" itemscope itemtype="http://schema.org/WPHeader">
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<div class="header-inner"><div class="site-brand-wrapper">
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<div class="site-meta ">
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<div class="custom-logo-site-title">
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<a href="/" class="brand" rel="start">
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<span class="logo-line-before"><i></i></span>
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<span class="site-title">混元霹雳手</span>
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<span class="logo-line-after"><i></i></span>
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</a>
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</div>
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<p class="site-subtitle"></p>
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</div>
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<div class="site-nav-toggle">
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<button>
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<span class="btn-bar"></span>
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<span class="btn-bar"></span>
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<span class="btn-bar"></span>
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</button>
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</div>
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</div>
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<nav class="site-nav">
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<ul id="menu" class="menu">
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<li class="menu-item menu-item-home">
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<a href="/" rel="section">
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<i class="menu-item-icon fa fa-fw fa-home"></i> <br>
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首页
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</a>
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</li>
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<li class="menu-item menu-item-about">
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<a href="/about/" rel="section">
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<i class="menu-item-icon fa fa-fw fa-user"></i> <br>
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关于
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</a>
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</li>
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<li class="menu-item menu-item-tags">
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<a href="/tags/" rel="section">
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<i class="menu-item-icon fa fa-fw fa-tags"></i> <br>
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标签
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</a>
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</li>
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<li class="menu-item menu-item-categories">
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<a href="/categories/" rel="section">
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<i class="menu-item-icon fa fa-fw fa-th"></i> <br>
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分类
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</a>
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</li>
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<li class="menu-item menu-item-archives">
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<a href="/archives/" rel="section">
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<i class="menu-item-icon fa fa-fw fa-archive"></i> <br>
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归档
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</a>
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</li>
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<li class="menu-item menu-item-search">
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<a href="javascript:;" class="popup-trigger">
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<i class="menu-item-icon fa fa-search fa-fw"></i> <br>
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搜索
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</a>
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</li>
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</ul>
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<div class="site-search">
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<div class="popup search-popup local-search-popup">
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<div class="local-search-header clearfix">
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<span class="search-icon">
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<i class="fa fa-search"></i>
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</span>
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<span class="popup-btn-close">
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<i class="fa fa-times-circle"></i>
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</span>
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<div class="local-search-input-wrapper">
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<input autocomplete="off" placeholder="搜索..." spellcheck="false" type="text" id="local-search-input">
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</div>
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</div>
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<div id="local-search-result"></div>
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</div>
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</div>
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</nav>
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</div>
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</header>
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<main id="main" class="main">
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<div class="main-inner">
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<div class="content-wrap">
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<div id="content" class="content">
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<div class="post-block category">
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<div id="posts" class="posts-collapse">
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<div class="collection-title">
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<h1>理论学习<small>分类</small>
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</h1>
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</div>
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<article class="post post-type-normal" itemscope itemtype="http://schema.org/Article">
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<header class="post-header">
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<h2 class="post-title">
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<a class="post-title-link" href="/2018/11/16/BIBA访问控制模型实现(python)/" itemprop="url">
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<span itemprop="name">利用python实现BIBA模型</span>
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</a>
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</h2>
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<div class="post-meta">
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<time class="post-time" itemprop="dateCreated" datetime="2018-11-16T15:35:27+08:00" content="2018-11-16">
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11-16
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</time>
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</div>
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</header>
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</article>
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</div>
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</div>
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</div>
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</div>
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<div class="sidebar-toggle">
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<div class="sidebar-toggle-line-wrap">
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<span class="sidebar-toggle-line sidebar-toggle-line-first"></span>
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<span class="sidebar-toggle-line sidebar-toggle-line-middle"></span>
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<span class="sidebar-toggle-line sidebar-toggle-line-last"></span>
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</div>
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</div>
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<aside id="sidebar" class="sidebar">
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<div class="sidebar-inner">
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<section class="site-overview-wrap sidebar-panel sidebar-panel-active">
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<div class="site-overview">
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<div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person">
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<img class="site-author-image" itemprop="image" src="/images/avatar.png" alt="Cool-Y">
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<p class="site-author-name" itemprop="name">Cool-Y</p>
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<p class="site-description motion-element" itemprop="description"></p>
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</div>
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<nav class="site-state motion-element">
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<div class="site-state-item site-state-posts">
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<a href="/archives/">
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<span class="site-state-item-count">9</span>
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<span class="site-state-item-name">日志</span>
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</a>
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</div>
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<div class="site-state-item site-state-categories">
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<a href="/categories/index.html">
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<span class="site-state-item-count">6</span>
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<span class="site-state-item-name">分类</span>
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</a>
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</div>
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<div class="site-state-item site-state-tags">
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<a href="/tags/index.html">
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<span class="site-state-item-count">21</span>
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<span class="site-state-item-name">标签</span>
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</a>
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</div>
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</nav>
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<div class="links-of-author motion-element">
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<span class="links-of-author-item">
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<a href="https://github.com/Cool-Y" target="_blank" title="GitHub">
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<i class="fa fa-fw fa-github"></i>GitHub</a>
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</span>
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<span class="links-of-author-item">
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<a href="http://weibo.com/HanYanOpenFire" target="_blank" title="Weibo">
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<i class="fa fa-fw fa-weibo"></i>Weibo</a>
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</span>
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<span class="links-of-author-item">
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<a href="mailto:cool.yim@whu.edu.cn" target="_blank" title="E-Mail">
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<i class="fa fa-fw fa-envelope"></i>E-Mail</a>
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<a href="https://www.instagram.com/yan__han/" target="_blank" title="Instagram">
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<i class="fa fa-fw fa-instagram"></i>Instagram</a>
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</div>
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</section>
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</div>
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</aside>
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</div>
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</main>
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<footer id="footer" class="footer">
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<div class="footer-inner">
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<div class="copyright">© <span itemprop="copyrightYear">2019</span>
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</span>
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<span class="author" itemprop="copyrightHolder">Cool-Y</span>
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</span>
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<span title="Site words total count">13.1k</span>
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</div>
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<div class="powered-by">由 <a class="theme-link" target="_blank" href="https://hexo.io">Hexo</a> 强力驱动</div>
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<script type="text/javascript">
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// Popup Window;
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var search_path = "search.xml";
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} else if (/json$/i.test(search_path)) {
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isXml = false;
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|
|
$('.search-result-list').remove();
|
|
$('#no-result').remove();
|
|
$(".local-search-pop-overlay").remove();
|
|
$('body').css('overflow', '');
|
|
}
|
|
|
|
function proceedsearch() {
|
|
$("body")
|
|
.append('<div class="search-popup-overlay local-search-pop-overlay"></div>')
|
|
.css('overflow', 'hidden');
|
|
$('.search-popup-overlay').click(onPopupClose);
|
|
$('.popup').toggle();
|
|
var $localSearchInput = $('#local-search-input');
|
|
$localSearchInput.attr("autocapitalize", "none");
|
|
$localSearchInput.attr("autocorrect", "off");
|
|
$localSearchInput.focus();
|
|
}
|
|
|
|
// search function;
|
|
var searchFunc = function(path, search_id, content_id) {
|
|
'use strict';
|
|
|
|
// start loading animation
|
|
$("body")
|
|
.append('<div class="search-popup-overlay local-search-pop-overlay">' +
|
|
'<div id="search-loading-icon">' +
|
|
'<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>' +
|
|
'</div>' +
|
|
'</div>')
|
|
.css('overflow', 'hidden');
|
|
$("#search-loading-icon").css('margin', '20% auto 0 auto').css('text-align', 'center');
|
|
|
|
$.ajax({
|
|
url: path,
|
|
dataType: isXml ? "xml" : "json",
|
|
async: true,
|
|
success: function(res) {
|
|
// get the contents from search data
|
|
isfetched = true;
|
|
$('.popup').detach().appendTo('.header-inner');
|
|
var datas = isXml ? $("entry", res).map(function() {
|
|
return {
|
|
title: $("title", this).text(),
|
|
content: $("content",this).text(),
|
|
url: $("url" , this).text()
|
|
};
|
|
}).get() : res;
|
|
var input = document.getElementById(search_id);
|
|
var resultContent = document.getElementById(content_id);
|
|
var inputEventFunction = function() {
|
|
var searchText = input.value.trim().toLowerCase();
|
|
var keywords = searchText.split(/[\s\-]+/);
|
|
if (keywords.length > 1) {
|
|
keywords.push(searchText);
|
|
}
|
|
var resultItems = [];
|
|
if (searchText.length > 0) {
|
|
// perform local searching
|
|
datas.forEach(function(data) {
|
|
var isMatch = false;
|
|
var hitCount = 0;
|
|
var searchTextCount = 0;
|
|
var title = data.title.trim();
|
|
var titleInLowerCase = title.toLowerCase();
|
|
var content = data.content.trim().replace(/<[^>]+>/g,"");
|
|
var contentInLowerCase = content.toLowerCase();
|
|
var articleUrl = decodeURIComponent(data.url);
|
|
var indexOfTitle = [];
|
|
var indexOfContent = [];
|
|
// only match articles with not empty titles
|
|
if(title != '') {
|
|
keywords.forEach(function(keyword) {
|
|
function getIndexByWord(word, text, caseSensitive) {
|
|
var wordLen = word.length;
|
|
if (wordLen === 0) {
|
|
return [];
|
|
}
|
|
var startPosition = 0, position = [], index = [];
|
|
if (!caseSensitive) {
|
|
text = text.toLowerCase();
|
|
word = word.toLowerCase();
|
|
}
|
|
while ((position = text.indexOf(word, startPosition)) > -1) {
|
|
index.push({position: position, word: word});
|
|
startPosition = position + wordLen;
|
|
}
|
|
return index;
|
|
}
|
|
|
|
indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
|
|
indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
|
|
});
|
|
if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
|
|
isMatch = true;
|
|
hitCount = indexOfTitle.length + indexOfContent.length;
|
|
}
|
|
}
|
|
|
|
// show search results
|
|
|
|
if (isMatch) {
|
|
// sort index by position of keyword
|
|
|
|
[indexOfTitle, indexOfContent].forEach(function (index) {
|
|
index.sort(function (itemLeft, itemRight) {
|
|
if (itemRight.position !== itemLeft.position) {
|
|
return itemRight.position - itemLeft.position;
|
|
} else {
|
|
return itemLeft.word.length - itemRight.word.length;
|
|
}
|
|
});
|
|
});
|
|
|
|
// merge hits into slices
|
|
|
|
function mergeIntoSlice(text, start, end, index) {
|
|
var item = index[index.length - 1];
|
|
var position = item.position;
|
|
var word = item.word;
|
|
var hits = [];
|
|
var searchTextCountInSlice = 0;
|
|
while (position + word.length <= end && index.length != 0) {
|
|
if (word === searchText) {
|
|
searchTextCountInSlice++;
|
|
}
|
|
hits.push({position: position, length: word.length});
|
|
var wordEnd = position + word.length;
|
|
|
|
// move to next position of hit
|
|
|
|
index.pop();
|
|
while (index.length != 0) {
|
|
item = index[index.length - 1];
|
|
position = item.position;
|
|
word = item.word;
|
|
if (wordEnd > position) {
|
|
index.pop();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
searchTextCount += searchTextCountInSlice;
|
|
return {
|
|
hits: hits,
|
|
start: start,
|
|
end: end,
|
|
searchTextCount: searchTextCountInSlice
|
|
};
|
|
}
|
|
|
|
var slicesOfTitle = [];
|
|
if (indexOfTitle.length != 0) {
|
|
slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
|
|
}
|
|
|
|
var slicesOfContent = [];
|
|
while (indexOfContent.length != 0) {
|
|
var item = indexOfContent[indexOfContent.length - 1];
|
|
var position = item.position;
|
|
var word = item.word;
|
|
// cut out 100 characters
|
|
var start = position - 20;
|
|
var end = position + 80;
|
|
if(start < 0){
|
|
start = 0;
|
|
}
|
|
if (end < position + word.length) {
|
|
end = position + word.length;
|
|
}
|
|
if(end > content.length){
|
|
end = content.length;
|
|
}
|
|
slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
|
|
}
|
|
|
|
// sort slices in content by search text's count and hits' count
|
|
|
|
slicesOfContent.sort(function (sliceLeft, sliceRight) {
|
|
if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
|
|
return sliceRight.searchTextCount - sliceLeft.searchTextCount;
|
|
} else if (sliceLeft.hits.length !== sliceRight.hits.length) {
|
|
return sliceRight.hits.length - sliceLeft.hits.length;
|
|
} else {
|
|
return sliceLeft.start - sliceRight.start;
|
|
}
|
|
});
|
|
|
|
// select top N slices in content
|
|
|
|
var upperBound = parseInt('1');
|
|
if (upperBound >= 0) {
|
|
slicesOfContent = slicesOfContent.slice(0, upperBound);
|
|
}
|
|
|
|
// highlight title and content
|
|
|
|
function highlightKeyword(text, slice) {
|
|
var result = '';
|
|
var prevEnd = slice.start;
|
|
slice.hits.forEach(function (hit) {
|
|
result += text.substring(prevEnd, hit.position);
|
|
var end = hit.position + hit.length;
|
|
result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
|
|
prevEnd = end;
|
|
});
|
|
result += text.substring(prevEnd, slice.end);
|
|
return result;
|
|
}
|
|
|
|
var resultItem = '';
|
|
|
|
if (slicesOfTitle.length != 0) {
|
|
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
|
|
} else {
|
|
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
|
|
}
|
|
|
|
slicesOfContent.forEach(function (slice) {
|
|
resultItem += "<a href='" + articleUrl + "'>" +
|
|
"<p class=\"search-result\">" + highlightKeyword(content, slice) +
|
|
"...</p>" + "</a>";
|
|
});
|
|
|
|
resultItem += "</li>";
|
|
resultItems.push({
|
|
item: resultItem,
|
|
searchTextCount: searchTextCount,
|
|
hitCount: hitCount,
|
|
id: resultItems.length
|
|
});
|
|
}
|
|
})
|
|
};
|
|
if (keywords.length === 1 && keywords[0] === "") {
|
|
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
|
|
} else if (resultItems.length === 0) {
|
|
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
|
|
} else {
|
|
resultItems.sort(function (resultLeft, resultRight) {
|
|
if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
|
|
return resultRight.searchTextCount - resultLeft.searchTextCount;
|
|
} else if (resultLeft.hitCount !== resultRight.hitCount) {
|
|
return resultRight.hitCount - resultLeft.hitCount;
|
|
} else {
|
|
return resultRight.id - resultLeft.id;
|
|
}
|
|
});
|
|
var searchResultList = '<ul class=\"search-result-list\">';
|
|
resultItems.forEach(function (result) {
|
|
searchResultList += result.item;
|
|
})
|
|
searchResultList += "</ul>";
|
|
resultContent.innerHTML = searchResultList;
|
|
}
|
|
}
|
|
|
|
if ('auto' === 'auto') {
|
|
input.addEventListener('input', inputEventFunction);
|
|
} else {
|
|
$('.search-icon').click(inputEventFunction);
|
|
input.addEventListener('keypress', function (event) {
|
|
if (event.keyCode === 13) {
|
|
inputEventFunction();
|
|
}
|
|
});
|
|
}
|
|
|
|
// remove loading animation
|
|
$(".local-search-pop-overlay").remove();
|
|
$('body').css('overflow', '');
|
|
|
|
proceedsearch();
|
|
}
|
|
});
|
|
}
|
|
|
|
// handle and trigger popup window;
|
|
$('.popup-trigger').click(function(e) {
|
|
e.stopPropagation();
|
|
if (isfetched === false) {
|
|
searchFunc(path, 'local-search-input', 'local-search-result');
|
|
} else {
|
|
proceedsearch();
|
|
};
|
|
});
|
|
|
|
$('.popup-btn-close').click(onPopupClose);
|
|
$('.popup').click(function(e){
|
|
e.stopPropagation();
|
|
});
|
|
$(document).on('keyup', function (event) {
|
|
var shouldDismissSearchPopup = event.which === 27 &&
|
|
$('.search-popup').is(':visible');
|
|
if (shouldDismissSearchPopup) {
|
|
onPopupClose();
|
|
}
|
|
});
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script src="https://cdn1.lncld.net/static/js/av-core-mini-0.6.4.js"></script>
|
|
<script>AV.initialize("EWwoJgHNdlj6iBjiFlMcabUO-gzGzoHsz", "x8FxDrYG79C8YFrTww9ljo8K");</script>
|
|
<script>
|
|
function showTime(Counter) {
|
|
var query = new AV.Query(Counter);
|
|
var entries = [];
|
|
var $visitors = $(".leancloud_visitors");
|
|
|
|
$visitors.each(function () {
|
|
entries.push( $(this).attr("id").trim() );
|
|
});
|
|
|
|
query.containedIn('url', entries);
|
|
query.find()
|
|
.done(function (results) {
|
|
var COUNT_CONTAINER_REF = '.leancloud-visitors-count';
|
|
|
|
if (results.length === 0) {
|
|
$visitors.find(COUNT_CONTAINER_REF).text(0);
|
|
return;
|
|
}
|
|
|
|
for (var i = 0; i < results.length; i++) {
|
|
var item = results[i];
|
|
var url = item.get('url');
|
|
var time = item.get('time');
|
|
var element = document.getElementById(url);
|
|
|
|
$(element).find(COUNT_CONTAINER_REF).text(time);
|
|
}
|
|
for(var i = 0; i < entries.length; i++) {
|
|
var url = entries[i];
|
|
var element = document.getElementById(url);
|
|
var countSpan = $(element).find(COUNT_CONTAINER_REF);
|
|
if( countSpan.text() == '') {
|
|
countSpan.text(0);
|
|
}
|
|
}
|
|
})
|
|
.fail(function (object, error) {
|
|
console.log("Error: " + error.code + " " + error.message);
|
|
});
|
|
}
|
|
|
|
function addCount(Counter) {
|
|
var $visitors = $(".leancloud_visitors");
|
|
var url = $visitors.attr('id').trim();
|
|
var title = $visitors.attr('data-flag-title').trim();
|
|
var query = new AV.Query(Counter);
|
|
|
|
query.equalTo("url", url);
|
|
query.find({
|
|
success: function(results) {
|
|
if (results.length > 0) {
|
|
var counter = results[0];
|
|
counter.fetchWhenSave(true);
|
|
counter.increment("time");
|
|
counter.save(null, {
|
|
success: function(counter) {
|
|
var $element = $(document.getElementById(url));
|
|
$element.find('.leancloud-visitors-count').text(counter.get('time'));
|
|
},
|
|
error: function(counter, error) {
|
|
console.log('Failed to save Visitor num, with error message: ' + error.message);
|
|
}
|
|
});
|
|
} else {
|
|
var newcounter = new Counter();
|
|
/* Set ACL */
|
|
var acl = new AV.ACL();
|
|
acl.setPublicReadAccess(true);
|
|
acl.setPublicWriteAccess(true);
|
|
newcounter.setACL(acl);
|
|
/* End Set ACL */
|
|
newcounter.set("title", title);
|
|
newcounter.set("url", url);
|
|
newcounter.set("time", 1);
|
|
newcounter.save(null, {
|
|
success: function(newcounter) {
|
|
var $element = $(document.getElementById(url));
|
|
$element.find('.leancloud-visitors-count').text(newcounter.get('time'));
|
|
},
|
|
error: function(newcounter, error) {
|
|
console.log('Failed to create');
|
|
}
|
|
});
|
|
}
|
|
},
|
|
error: function(error) {
|
|
console.log('Error:' + error.code + " " + error.message);
|
|
}
|
|
});
|
|
}
|
|
|
|
$(function() {
|
|
var Counter = AV.Object.extend("Counter");
|
|
if ($('.leancloud_visitors').length == 1) {
|
|
addCount(Counter);
|
|
} else if ($('.post-title-link').length > 1) {
|
|
showTime(Counter);
|
|
}
|
|
});
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script>
|
|
(function(){
|
|
var bp = document.createElement('script');
|
|
var curProtocol = window.location.protocol.split(':')[0];
|
|
if (curProtocol === 'https') {
|
|
bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
|
|
}
|
|
else {
|
|
bp.src = 'http://push.zhanzhang.baidu.com/push.js';
|
|
}
|
|
var s = document.getElementsByTagName("script")[0];
|
|
s.parentNode.insertBefore(bp, s);
|
|
})();
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|