initial commit

2 files changed, 118 insertions, 0 deletions

diff --git a/files/zh-cn/web/api/pagetransitionevent/index.html b/files/zh-cn/web/api/pagetransitionevent/index.html
new file mode 100644
index 0000000000..756e0c81d0
--- /dev/null
+++ b/files/zh-cn/web/api/pagetransitionevent/index.html
@@ -0,0 +1,73 @@
+---
+title: PageTransitionEvent
+slug: Web/API/PageTransitionEvent
+translation_of: Web/API/PageTransitionEvent
+---
+<p>{{APIRef("HTML DOM")}}</p>
+
+<p>Page transition events fire when a webpage is being loaded or unloaded.</p>
+
+<p>当网页在加载完成或卸载后会触发页面传输事件（Page transition events）。</p>
+
+<h2 id="DOM_Information">DOM Information</h2>
+
+<p> </p>
+
+<h3 id="Inheritance_Hierarchy">Inheritance Hierarchy</h3>
+
+<div> Event
+<div>   PageTransitionEvent</div>
+</div>
+
+<h2 id="Example">Example</h2>
+
+<h3 id="HTML">HTML</h3>
+
+<pre class="brush: html">&lt;!DOCTYPE html&gt;
+&lt;html&gt;
+&lt;body onpageshow="myFunction(event)"&gt;
+&lt;/body&gt;
+&lt;/html&gt;</pre>
+
+<h3 id="JavaScript">JavaScript</h3>
+
+<pre class="brush: js">function myFunction(event) {
+    if (event.persisted) {
+        alert("The page was cached by the browser");
+    } else {
+        alert("The page was NOT cached by the browser");
+    }
+}</pre>
+
+<h2 id="Members">Members</h2>
+
+<p>The <strong>PageTransitionEvent</strong> object has these types of members:</p>
+
+<ul>
+ <li><a href="#">Properties</a></li>
+</ul>
+
+<h3 id="Properties">Properties</h3>
+
+<p>The <strong>PageTransitionEvent</strong> object has these properties.</p>
+
+<table class="members" id="memberListProperties">
+ <tbody>
+  <tr>
+   <th>Property</th>
+   <th>Access type</th>
+   <th>Description</th>
+  </tr>
+  <tr>
+   <td>
+    <p><strong>persisted</strong></p>
+   </td>
+   <td>只读</td>
+   <td>
+    <p>标记页面是否从缓存（Backforward Cache）中加载</p>
+   </td>
+  </tr>
+ </tbody>
+</table>
+
+<p> </p>
diff --git a/files/zh-cn/web/api/pagetransitionevent/persisted/index.html b/files/zh-cn/web/api/pagetransitionevent/persisted/index.html
new file mode 100644
index 0000000000..831eb7bbf7
--- /dev/null
+++ b/files/zh-cn/web/api/pagetransitionevent/persisted/index.html
@@ -0,0 +1,45 @@
+---
+title: PageTransitionEvent.persisted
+slug: Web/API/PageTransitionEvent/persisted
+translation_of: Web/API/PageTransitionEvent/persisted
+---
+<div>{{APIRef("HTML DOM")}}</div>
+
+<p>只读属性<code><strong>persisted</strong></code>代表一个页面是否从缓存中加载的</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="brush: js notranslate">window.addEventListener('pageshow', function(event) {
+  if (event.persisted) {
+    console.log('Page was loaded from cache.');
+  }
+});</pre>
+
+<h3 id="Value">Value</h3>
+
+<p>A {{jsxref("Boolean")}}.</p>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('HTML WHATWG', '#dom-pagetransitionevent-persisted', 'PageTransitionEvent: persisted')}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td>Initial definition</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("api.PageTransitionEvent.persisted")}}</p>