fengchuanyu 6 dagen geleden
bovenliggende
commit
65bb679042

+ 29 - 0
4_BOM&DOM/10_DOM_鼠标滑动事件.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <style>
+        .box{
+            width: 200px;
+            height: 200px;
+            background-color: red;
+        }
+    </style>
+</head>
+<body>
+    <div class="box"></div>
+    <script>
+        var oBox = document.getElementsByClassName("box")[0];
+        // 鼠标移入事件 mouseover 当鼠标移入某一个元素的时候触发
+        oBox.onmouseover = function(){
+            console.log("鼠标移入了");
+        }
+        // 鼠标移出事件 mouseout 当鼠标移出某一个元素的时候触发
+        oBox.onmouseout = function(){
+            console.log("鼠标移出了");
+        }
+    </script>
+</body>
+</html>

+ 40 - 0
4_BOM&DOM/11_DOM_控制标签属性.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <style>
+        .box2{
+            color: red;
+        }
+    </style>
+</head>
+<body>
+    <div class="box" id="div1">hello</div>
+    <img src="" alt="图片">
+    <script>
+        var oBox = document.getElementById("div1");
+        var oImg = document.getElementsByTagName("img")[0];
+        oBox.onmouseover = function(){
+            // setAttribute 方法 用来设置元素的属性
+            // setAttribute(属性名, 属性值)
+            oImg.setAttribute("src","./img/logo.png");
+            // 也可以通过点语法来设置属性
+            // oImg.src = "./img/logo.png";
+
+            // 获取属性的值
+            // getAttribute(属性名)
+            // var imgAlt = oImg.getAttribute("alt");
+            // console.log(imgAlt);
+            // 也可以通过点语法来获取属性
+            var imgAlt = oImg.alt;
+            console.log(imgAlt);
+
+
+            oBox.setAttribute("class","box box2");
+        }
+
+    </script>
+</body>
+</html>

+ 0 - 0
4_BOM&DOM/8_DOM_又击事件.html → 4_BOM&DOM/8_DOM_右键事件.html


BIN
4_BOM&DOM/img/logo.png