添加最后更新时间；html不允许浏览器缓存页面

src/assets/js/class.js

@@ -103,6 +103,14 @@ class ArrayVi extends ViBase {
         }
         DOMFragment.appendChild(ctrlBtn)
 
+        // 页面最后更新时间
+        var lastModifiedTime = (new Date(document.lastModified).getTime() / 1000).toFixed(0)
+        let lastModifiedDiv = document.createElement("div")
+        lastModifiedDiv.style.fontSize = "x-small"
+        lastModifiedDiv.style.opacity = ".5"
+        lastModifiedDiv.innerHTML = "页面版本戳: " + lastModifiedTime
+        DOMFragment.appendChild(lastModifiedDiv)
+
         controlDiv.appendChild(DOMFragment)
 
         // 生成一个随机数组

src/assets/js/index.js

@@ -1,4 +1,3 @@
-
 // 全局变量
 var settings = {
     container: d3.select("#container"),
@@ -171,5 +170,3 @@ function displayCurrentArray(array) {
 // })
 
 // shape.addNode("ele7", 300, 200, "20px", "20px", "文本")
-
-

src/index.html

@@ -9,6 +9,14 @@
 
     <meta name="description" content="小墨AlGO，可视化算法，让算法更简单！">
 
+    <!-- 不允许浏览器缓存此页面，便于后期页面升级 -->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=8">
+    <meta http-equiv="Expires" content="0">
+    <meta http-equiv="Pragma" content="no-cache">
+    <meta http-equiv="Cache-control" content="no-cache">
+    <meta http-equiv="Cache" content="no-cache">
+
     <!-- 如果使用webpack，请注释掉下面两行，通过 webpack 引入 -->
     <link rel="stylesheet" href="./assets/css/index.css">
 </head>