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<!DOCTYPE html>
<html lang="zh-tw">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="Hugo 0.53 with theme Tranquilpeak 0.4.3-BETA">
<title>sleepycookie's blog</title>
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<body>
<div id="blog">
<header id="header" data-behavior="1">
<i id="btn-open-sidebar" class="fa fa-lg fa-bars"></i>
<div class="header-title">
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<a class="header-right-picture "
href="https://sleepyman212.github.io/#about">
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</a>
<h4 class="sidebar-profile-name">kwei</h4>
<h5 class="sidebar-profile-bio">挑戰每天的自己，比昨天更前進一點</h5>
</div>
<ul class="sidebar-buttons">
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<div id="main" data-behavior="1"
class="
hasCoverMetaIn
">
<section class="postShorten-group main-content-wrap">
<article class="postShorten postShorten--thumbnailimg-bottom" itemscope itemType="http://schema.org/BlogPosting">
<div class="postShorten-wrap">
<div class="postShorten-header">
<h1 class="postShorten-title" itemprop="headline">
<a class="link-unstyled" href="https://sleepyman212.github.io/post/alphavsopacity/">
AlphaVSOpacity
</a>
</h1>
<div class="postShorten-meta post-meta">
<time itemprop="datePublished" datetime="2019-09-05T01:26:04+08:00">
九月 5, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/%e5%89%8d%e7%ab%af">前端</a>
</div>
</div>
<div class="postShorten-excerpt" itemprop="articleBody">
<h1 id="opacity-跟-background-差別">opacity 跟 background 差別</h1>
<ul>
<li>opacity 子元素都會受影響，也會變成透明</li>
<li>background-color 子元素就不會影響</li>
</ul>
<h2 id="example">example</h2>
<h3 id="opacity">opacity</h3>
<p><style>
.bg1{
width: 700px;
height: 500px;
background-position:center;
color:black;
font-size:8rem;
opacity:.6;
}
.bg1-txt{
width:100%;
height:100%;
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg1' style="background: url('/images/alphaBG.png');">
<div class='bg1-txt'>
Test
</div>
</div></p>
<pre><code class="language-htmlmixed="><style>
.bg{
background: url("/images/alphaBG.png");
width: 800px;
height:600px;
background-position:center;
color:black;
font-size:8rem;
opacity:.6;
}
.bg-txt{
width:100%;
height:100%;
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg'>
<div class='bg-txt'>
Test
</div>
</div>
</code></pre>
<blockquote>
<p>上面的範例連文字都會有透明</p>
</blockquote>
<h3 id="backgroud">backgroud</h3>
<p><style>
.bg{
width: 700px;
height:500px;
background-position:center;
color:black;
font-size:8rem;
}
.bg-txt{
width:100%;
height:100%;
background: rgba(255,255,255,.3);
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg' style="background: url('/images/alphaBG.png');">
<div class='bg-txt'>
Test
</div>
</div></p>
<pre><code class="language-htmlmixed="><style>
.bg{
background: url("/images/alphaBG.png");
width: 800px;
height:600px;
background-position:center;
color:black;
font-size:8rem;
}
.bg-txt{
width:100%;
height:100%;
background: rgba(255,255,255,.3);
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg'>
<div class='bg-txt'>
Test
</div>
</div>
</code></pre>
<blockquote>
<p>文字不會透明了，只有背竟有透明一點</p>
</blockquote>
<h2 id="參考資料">參考資料</h2>
<p><a href="https://www.youtube.com/watch?v=yxAGnwgzM4E">CSS Opacity VS Alpha | Opacity 跟 Alpha的差異 | 調整透明度</a>
<a href="https://kknews.cc/zh-tw/tech/va6zgml.html">CSS實現背景圖片透明，文字不透明效果</a></p>
<p>
<a href="https://sleepyman212.github.io/post/alphavsopacity/" class="postShorten-excerpt_link link">繼續閱讀</a>
</p>
</div>
</div>
</article>
<article class="postShorten postShorten--thumbnailimg-bottom" itemscope itemType="http://schema.org/BlogPosting">
<div class="postShorten-wrap">
<div class="postShorten-header">
<h1 class="postShorten-title" itemprop="headline">
<a class="link-unstyled" href="https://sleepyman212.github.io/post/fetch_post/">
Fetch POST 傳遞資料
</a>
</h1>
<div class="postShorten-meta post-meta">
<time itemprop="datePublished" datetime="2019-07-28T22:45:06+08:00">
七月 28, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/%e5%89%8d%e7%ab%af">前端</a>
</div>
</div>
<div class="postShorten-excerpt" itemprop="articleBody">
<p>最近剛好在使用 fetch 代替 ajax ，剛好遇到了一些小問題，所以寫下來提醒一下自己</p>
<p>fetch 是一個新的 API 可以讓我們可以去做 AJAX ，而且用起來更直觀</p>
<p>當要使用 fetch 來做 POST 我們可以用以下的寫法:</p>
<pre><code class="language-javascript">fetch(URL,{
method:'POST',
method: 'cors' // 用來作為 跨域請求用的
})
</code></pre>
<p>這樣就可以使用 fetch 發出 POST 的請求，當我們要附上資料時，可以用 FormData 這一個 class 來帶上我們的資料</p>
<p><code>const fd = new FormData([可以直接指定 dom 元素是 form 的])</code></p>
<pre><code class="language-javascript">const fd = FormData();
fd.append('key',value);
</code></pre>
<p>可以用以上兩種方法來給 FormData 資料</p>
<p>最後只需要把 FormData 帶入 fetch 中的欄位，就可以成功帶上資料了</p>
<pre><code class="language-javascript">fetch(URL,{
method:'POST',
method: 'cors', // 用來作為 跨域請求用的
body: fd
})
</code></pre>
<blockquote>
<p>這邊不需要去指定 Content-Type ，因為 fetch 會幫我們帶上適當的屬性</p>
</blockquote>
<p>
<a href="https://sleepyman212.github.io/post/fetch_post/" class="postShorten-excerpt_link link">繼續閱讀</a>
</p>
</div>
</div>
</article>
<article class="postShorten postShorten--thumbnailimg-bottom" itemscope itemType="http://schema.org/BlogPosting">
<div class="postShorten-wrap">
<div class="postShorten-header">
<h1 class="postShorten-title" itemprop="headline">
<a class="link-unstyled" href="https://sleepyman212.github.io/post/moodle_build/">
建立 moodle 工作環境
</a>
</h1>
<div class="postShorten-meta post-meta">
<time itemprop="datePublished" datetime="2019-04-21T02:38:03+08:00">
四月 21, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/moddle">moddle</a>
</div>
</div>
<div class="postShorten-excerpt" itemprop="articleBody">
環境要求 os ubuntu 18.04.1 apache mysql php moodle 3.x 安裝教學 用來建立 server 用的 apache 更新套件 sudo apt update 安裝apache sudo apt install apache2 讓 apache 可以通過防火牆之前，先看一下 sudo ufw app list 現在讓 apache 可以通
<p>
<a href="https://sleepyman212.github.io/post/moodle_build/" class="postShorten-excerpt_link link">繼續閱讀</a>
</p>
</div>
</div>
</article>
<article class="postShorten postShorten--thumbnailimg-bottom" itemscope itemType="http://schema.org/BlogPosting">
<div class="postShorten-wrap">
<div class="postShorten-header">
<h1 class="postShorten-title" itemprop="headline">
<a class="link-unstyled" href="https://sleepyman212.github.io/post/cas_build/">
建立 CAS server
</a>
</h1>
<div class="postShorten-meta post-meta">
<time itemprop="datePublished" datetime="2019-04-21T02:33:02+08:00">
四月 21, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/cas">cas</a>
</div>
</div>
<div class="postShorten-excerpt" itemprop="articleBody">
環境要求 jdk-11 apache-maven-3.5.2 apache-tomcat-9.0.17 install openjdk sudo add-apt-repository ppa:openjdk-r/ppa sudo apt update sudo apt install openjdk-11-jdk java -version #看一下版本跟有無安裝成功 install tomcat Create Tomcat User sudo groupadd tomcat #創建一個 tomcat 群組 sudo useradd -s /bin/false -g tomcat -d /opt/tomcat tomcat #創建一個較 tomcat 的使用者
<p>
<a href="https://sleepyman212.github.io/post/cas_build/" class="postShorten-excerpt_link link">繼續閱讀</a>
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<a class="link-unstyled" href="https://sleepyman212.github.io/post/php_session/">
PHP session 換頁找不到了
</a>
</h1>
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<time itemprop="datePublished" datetime="2019-03-11T02:33:27+08:00">
三月 11, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/backend">backEnd</a>
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<div class="postShorten-excerpt" itemprop="articleBody">
<p>最近重新架 PHP 的環境，在使用 session 的時候發現了問題，當我在這個網頁設定了 session 後，
當我跳轉到另一個網頁後，發現 session 不見了!!!!</p>
<p>我確認了一下我有沒有開啟 session(<code>session_start()</code>) ， 也確認了我是在同一個網域底下，結果是我在其中一個關鍵的 php 檔案沒有開啟…</p>
<p>於是我上網找了一下有沒有可以避免的方法，發現是 <code>session.auto_start</code> ，它可以自動幫我們開啟 session ，這樣就不會有時忘了開了，可以在 <code>php_info()</code> 中找找看，如下圖，如果確認沒有開後，可以到 php.ini 裡去改掉他</p>
<p><code>session.auto_start=1</code> 這樣應該就可以了</p>
<p><img src="https://i.imgur.com/oNpf7vl.png" alt="" /></p>
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<a href="https://sleepyman212.github.io/post/php_session/" class="postShorten-excerpt_link link">繼續閱讀</a>
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<h1 class="postShorten-title" itemprop="headline">
<a class="link-unstyled" href="https://sleepyman212.github.io/post/box_model/">
Box Model
</a>
</h1>
<div class="postShorten-meta post-meta">
<time itemprop="datePublished" datetime="2019-01-07T04:38:38+08:00">
一月 7, 2019
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/%e5%89%8d%e7%ab%af">前端</a>
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<div class="postShorten-excerpt" itemprop="articleBody">
在 HTML 裡的每個元素都有一個 box-model，而 box-model 是用來表達一個元件的呈現方式，在 CSS 裡可以用 box-sizing 這個屬性去設定，以下是他可以設定的值 content-box –> 預設的模
<p>
<a href="https://sleepyman212.github.io/post/box_model/" class="postShorten-excerpt_link link">繼續閱讀</a>
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<a class="link-unstyled" href="https://sleepyman212.github.io/post/accessibility1/">
無障礙網頁規範
</a>
</h1>
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<time itemprop="datePublished" datetime="2018-12-15T20:32:24+08:00">
十二月 15, 2018
</time>
<span>分類</span>
<a class="category-link" href="https://sleepyman212.github.io/categories/accessibility">accessibility</a>
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<div class="postShorten-excerpt" itemprop="articleBody">
以下是網站無障礙規範 2.0 的內容 我把 AA 級的規範盡量拿出來，如果要達到 AAA 級，仍需到網站無障礙規範 2.0參考 1. (替代文字)為任何非文字的內容提供相等
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<a class="link-unstyled" href="https://sleepyman212.github.io/post/alphavsopacity/">
<h3 class="media-heading">AlphaVSOpacity</h3>
</a>
<span class="media-meta">
<span class="media-date text-small">
Sep 9, 2019
</span>
</span>
<div class="media-content hide-xs font-merryweather"><h1 id="opacity-跟-background-差別">opacity 跟 background 差別</h1>
<ul>
<li>opacity 子元素都會受影響，也會變成透明</li>
<li>background-color 子元素就不會影響</li>
</ul>
<h2 id="example">example</h2>
<h3 id="opacity">opacity</h3>
<p><style>
.bg1{
width: 700px;
height: 500px;
background-position:center;
color:black;
font-size:8rem;
opacity:.6;
}
.bg1-txt{
width:100%;
height:100%;
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg1' style="background: url('/images/alphaBG.png');">
<div class='bg1-txt'>
Test
</div>
</div></p>
<pre><code class="language-htmlmixed="><style>
.bg{
background: url("/images/alphaBG.png");
width: 800px;
height:600px;
background-position:center;
color:black;
font-size:8rem;
opacity:.6;
}
.bg-txt{
width:100%;
height:100%;
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg'>
<div class='bg-txt'>
Test
</div>
</div>
</code></pre>
<blockquote>
<p>上面的範例連文字都會有透明</p>
</blockquote>
<h3 id="backgroud">backgroud</h3>
<p><style>
.bg{
width: 700px;
height:500px;
background-position:center;
color:black;
font-size:8rem;
}
.bg-txt{
width:100%;
height:100%;
background: rgba(255,255,255,.3);
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg' style="background: url('/images/alphaBG.png');">
<div class='bg-txt'>
Test
</div>
</div></p>
<pre><code class="language-htmlmixed="><style>
.bg{
background: url("/images/alphaBG.png");
width: 800px;
height:600px;
background-position:center;
color:black;
font-size:8rem;
}
.bg-txt{
width:100%;
height:100%;
background: rgba(255,255,255,.3);
display:flex;
justify-content:center;
align-items:center;
}
</style>
<div class='bg'>
<div class='bg-txt'>
Test
</div>
</div>
</code></pre>
<blockquote>
<p>文字不會透明了，只有背竟有透明一點</p>
</blockquote>
<h2 id="參考資料">參考資料</h2>
<p><a href="https://www.youtube.com/watch?v=yxAGnwgzM4E">CSS Opacity VS Alpha | Opacity 跟 Alpha的差異 | 調整透明度</a>
<a href="https://kknews.cc/zh-tw/tech/va6zgml.html">CSS實現背景圖片透明，文字不透明效果</a></p></div>
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<a class="link-unstyled" href="https://sleepyman212.github.io/post/fetch_post/">
<h3 class="media-heading">Fetch POST 傳遞資料</h3>
</a>
<span class="media-meta">
<span class="media-date text-small">
Jul 7, 2019
</span>
</span>
<div class="media-content hide-xs font-merryweather"><p>最近剛好在使用 fetch 代替 ajax ，剛好遇到了一些小問題，所以寫下來提醒一下自己</p>
<p>fetch 是一個新的 API 可以讓我們可以去做 AJAX ，而且用起來更直觀</p>
<p>當要使用 fetch 來做 POST 我們可以用以下的寫法:</p>
<pre><code class="language-javascript">fetch(URL,{
method:'POST',