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<!doctype html>
<html class="theme-next pisces use-motion" lang="zh-Hans">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
<link href="/lib/fancybox/source/jquery.fancybox.css?v=2.1.5" rel="stylesheet" type="text/css" />
<link href="//fonts.googleapis.com/css?family=Lato:300,300italic,400,400italic,700,700italic&subset=latin,latin-ext" rel="stylesheet" type="text/css">
<link href="/lib/font-awesome/css/font-awesome.min.css?v=4.6.2" rel="stylesheet" type="text/css" />
<link href="/css/main.css?v=5.1.0" rel="stylesheet" type="text/css" />
<meta name="keywords" content="Hexo, NexT" />
<link rel="shortcut icon" type="image/x-icon" href="/favicon.ico?v=5.1.0" />
<meta name="description" content="个人收藏">
<meta property="og:type" content="website">
<meta property="og:title" content="NNNの博客">
<meta property="og:url" content="https://menggeniu.github.io/index.html">
<meta property="og:site_name" content="NNNの博客">
<meta property="og:description" content="个人收藏">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="NNNの博客">
<meta name="twitter:description" content="个人收藏">
<script type="text/javascript" id="hexo.configurations">
var NexT = window.NexT || {};
var CONFIG = {
root: '/',
scheme: 'Pisces',
sidebar: {"position":"right","display":"post"},
fancybox: true,
motion: true,
duoshuo: {
userId: '0',
author: '博主'
},
algolia: {
applicationID: '',
apiKey: '',
indexName: '',
hits: {"per_page":10},
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"}
}
};
</script>
<link rel="canonical" href="https://menggeniu.github.io/"/>
<title> NNNの博客 </title>
</head>
<body itemscope itemtype="http://schema.org/WebPage" lang="zh-Hans">
<div class="container one-collumn sidebar-position-right
page-home
">
<div class="headband"></div>
<header id="header" class="header" itemscope itemtype="http://schema.org/WPHeader">
<div class="header-inner"><div class="site-meta ">
<div class="custom-logo-site-title">
<a href="/" class="brand" rel="start">
<span class="logo-line-before"><i></i></span>
<span class="site-title">NNNの博客</span>
<span class="logo-line-after"><i></i></span>
</a>
</div>
<p class="site-subtitle">世上所有的相遇都是久别重逢</p>
</div>
<div class="site-nav-toggle">
<button>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
</button>
</div>
<nav class="site-nav">
<ul id="menu" class="menu">
<li class="menu-item menu-item-home">
<a href="/" rel="section">
<i class="menu-item-icon fa fa-fw fa-home"></i> <br />
首页
</a>
</li>
<li class="menu-item menu-item-archives">
<a href="/archives" rel="section">
<i class="menu-item-icon fa fa-fw fa-archive"></i> <br />
归档
</a>
</li>
<li class="menu-item menu-item-tags">
<a href="/tags" rel="section">
<i class="menu-item-icon fa fa-fw fa-tags"></i> <br />
标签
</a>
</li>
<li class="menu-item menu-item-search">
<a href="javascript:;" class="popup-trigger">
<i class="menu-item-icon fa fa-search fa-fw"></i> <br />
搜索
</a>
</li>
</ul>
<div class="site-search">
<div class="popup">
<span class="search-icon fa fa-search"></span>
<input type="text" id="local-search-input">
<div id="local-search-result"></div>
<span class="popup-btn-close">close</span>
</div>
</div>
</nav>
</div>
</header>
<main id="main" class="main">
<div class="main-inner">
<div class="content-wrap">
<div id="content" class="content">
<section id="posts" class="posts-expand">
<article class="post post-type-normal " itemscope itemtype="http://schema.org/Article">
<link itemprop="mainEntityOfPage" href="https://menggeniu.github.io/2018/07/15/57/">
<span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="menggeNIU">
<meta itemprop="description" content="">
<meta itemprop="image" content="/images/avatar.png">
</span>
<span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="NNNの博客">
<span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject">
<img style="display:none;" itemprop="url image" alt="NNNの博客" src="">
</span>
</span>
<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2018/07/15/57/" itemprop="url">
神器的css
</a>
</h1>
<div class="post-meta">
<span class="post-time">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">发表于</span>
<time title="Post created" itemprop="dateCreated datePublished" datetime="2018-07-15T17:13:01+08:00">
2018-07-15
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</a>
</span>
<span id="/2018/07/15/57/" class="leancloud_visitors" data-flag-title="神器的css">
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<span class="post-meta-item-text">阅读次数 </span>
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</span>
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</header>
<div class="post-body" itemprop="articleBody">
css混合模式 CSS3 新增了一个很有意思的属性 – mix-blend-mode ，其中 mix 和 blend 的中文意译均为混合，那么这个属性的作用直译过来就是混合模式，当然，我们通常称之为混合模式。混合模式最常见于 photosh
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<article class="post post-type-normal " itemscope itemtype="http://schema.org/Article">
<link itemprop="mainEntityOfPage" href="https://menggeniu.github.io/2018/05/10/56/">
<span style="display:none" itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="menggeNIU">
<meta itemprop="description" content="">
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<span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="NNNの博客">
<span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject">
<img style="display:none;" itemprop="url image" alt="NNNの博客" src="">
</span>
</span>
<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2018/05/10/56/" itemprop="url">
JS的truthy和falsy🎄
</a>
</h1>
<div class="post-meta">
<span class="post-time">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
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<span class="post-meta-item-text">发表于</span>
<time title="Post created" itemprop="dateCreated datePublished" datetime="2018-05-10T17:57:31+08:00">
2018-05-10
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<div class="post-body" itemprop="articleBody">
在看react教程的时候，突然看到下面这段话:
在有条件性渲染 React 元素时非常有用。如果 showHeader 为 true 时，会被渲染:
1234<div> {showHeader && <Header />}
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<meta itemprop="name" content="menggeNIU">
<meta itemprop="description" content="">
<meta itemprop="image" content="/images/avatar.png">
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<span style="display:none" itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="NNNの博客">
<span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject">
<img style="display:none;" itemprop="url image" alt="NNNの博客" src="">
</span>
</span>
<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2018/05/09/55/" itemprop="url">
我所知道的es6种react生命周期
</a>
</h1>
<div class="post-meta">
<span class="post-time">
<span class="post-meta-item-icon">
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<span class="post-meta-item-text">发表于</span>
<time title="Post created" itemprop="dateCreated datePublished" datetime="2018-05-09T11:07:22+08:00">
2018-05-09
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基本上所有的React组件的生命周期方法都可以被分割成四个阶段：初始化、挂载阶段（mounting）、更新阶段、卸载阶段（unmounting）。让我们来看一下各个阶段。
初始化阶段es6中我们用下面方法来分别定义this.props默认值和this.state的初始值阶段12345678910co
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<span style="display:none" itemprop="logo" itemscope itemtype="http://schema.org/ImageObject">
<img style="display:none;" itemprop="url image" alt="NNNの博客" src="">
</span>
</span>
<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2016/07/26/54/" itemprop="url">
CDN技术原理💕
</a>
</h1>
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<span class="post-time">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
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<span class="post-meta-item-text">发表于</span>
<time title="Post created" itemprop="dateCreated datePublished" datetime="2016-07-26T21:55:48+08:00">
2016-07-26
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<span id="/2016/07/26/54/" class="leancloud_visitors" data-flag-title="CDN技术原理💕">
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要了解CDN的实现原理，首先让我们来回顾一下网站传统的访问过程，以便理解其与CDN访问方式之间的差别：由上图可见，传统的网站访问过程为:
用户在浏览器中输入要访问的域名；
浏览器向域名解析服务器发出解析请求，获得此域名对应的IP地址；
浏览器利用所得到的IP地址，向该IP对应的服务器发出访问请求；
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关于Png格式图片你了解多少😃
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2016-07-25
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Png是图像文件存储格式，在网页设计中已经不是一个陌生的名词，在前端开发中经常使用到它，如常用CSS雪碧图。而Png的使用不仅仅如此，Png有多少种格式，有哪些特点，PC端中常用的Png格式是哪些，手机端最合适的Png格式是什么呢?如果你对这些问题有疑问，那么很开心的告诉你，这里有你需要的答案。
P
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XSS跨站总结🔔
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