添加导航栏

src/assets/css/index.css

@@ -6,11 +6,44 @@ body,
   padding: 0;
 }
 
+a {
+  text-decoration: none;
+  color: rgb(28, 85, 255);
+}
+a:hover {
+  text-shadow: 0 0 2px #b9b9b9;
+}
+
 .main {
   display: grid;
   place-items: center;
 }
 
+/* 导航栏 */
+#header {
+  width: 100%;
+  height: 60px;
+  position: fixed;
+  top: 0;
+  left: 0;
+  /* background-color: blue; */
+  box-shadow: 0 0 5px #888;
+}
+
+#header-wapper {
+  display: grid;
+  height: 100%;
+  margin: 0 6vw;
+  /* background-color: red; */
+  grid-template-columns: 300px 1fr 300px;
+}
+
+.header-logo-image {
+  height: 48px;
+  margin: auto 0;
+}
+
+/* 正文 */
 #container {
   border: 1px solid #999;
   border-radius: 5px;

src/assets/js/header.js

@@ -0,0 +1,89 @@
+function drawNavbar() {
+    function createElement(json) {
+        if (!json || json.length === 0)
+            return null
+        console.log(1)
+        var fr = document.createDocumentFragment()
+        // var elList = []
+        for (let i = 0; i < json.length; i++) {
+            const element = json[i];
+            // 创建元素
+            var el = document.createElement(element.tagName)
+            // 设置属性
+            if (element.attr) {
+                Object.keys(element.attr).forEach(attrName => {
+                    el.setAttribute(attrName, element.attr[attrName])
+                })
+            }
+            // 设置 inner HTML
+            if (element.innerHTML) {
+                el.innerHTML = element.innerHTML
+            }
+            // 创建子元素并插入
+            if (element.childNode) {
+                var childNodeElement = createElement(element.childNode)
+                el.appendChild(childNodeElement)
+            }
+
+            // 将当前元素插入父级元素
+            // elList.push(el)
+            fr.appendChild(el)
+        }
+        // 返回
+        return fr
+        // return elList
+    }
+
+    var headerDOM = document.getElementById("header")
+    var headerHTML = createElement([
+        {
+            "tagName": "div",
+            "attr": {
+                "id": "header-wapper",
+                "style": "opacity: 0; transition: 0.5s"
+            },
+            "childNode": [
+                {
+                    "tagName": "img",
+                    "attr": {
+                        "class": "header-logo-image",
+                        "src": "./assets/image/logo-normal-resize-compressed.png",
+                        "alt": "小墨算法可视化",
+                    },
+                },
+                {
+                    "tagName": "div",
+                },
+                {
+                    "tagName": "div",
+                    "attr": {
+                        "class": "header-logo-links",
+                        "style": "text-align: right;",
+                    },
+                    "childNode": [
+                        {
+                            "tagName": "a",
+                            "attr": {
+                                "style": "line-height: 60px;",
+                                "href": "https://space.bilibili.com/457109942",
+                                "target": "_blank",
+                            },
+                            "innerHTML": "B站"
+                        },
+                    ]
+                },
+            ]
+        }
+    ])
+    console.log(headerHTML)
+    if (headerDOM && headerHTML) {
+        headerDOM.appendChild(headerHTML)
+        setTimeout(function () {
+            headerDOM.querySelector("#header-wapper").style.opacity = 1
+        })
+    } else {
+        console.log("找不到 header 容器或 header 容器内容为空")
+    }
+}
+
+drawNavbar()