first commit

2024-09-27 02:06:13 +08:00
commit 852d94fbb9
36760 changed files with 3274413 additions and 0 deletions
--- a/历届学生/刘合群/2019-07-19/enevt.html
+++ b/历届学生/刘合群/2019-07-19/enevt.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>事件</title>
+</head>
+<body>
+  
+
+  <p class="ddddd" onclick="demos()"> 点我触发事件 </p>
+
+  <button class="btn1">我是按钮</button>
+
+  <button class="btn2">我是按钮2</button>
+
+  <script>
+    // 用户进行某项操作
+    // 浏览器有两"棵树"，bom(window)，dom(document)
+    // 通过js操作浏览器(刷新，打开窗口)，bom
+    // 通过js操作页面上的html(显示隐藏元素，修改元素颜色)，dom
+    function demos () {
+      alert("事件被触发")
+      document.querySelector(".ddddd").innerText = "哈哈哈哈"
+      document.title = "的回调古尔丹股权"
+      open("https://www.runoob.com/js/js-events.html")
+    }
+
+    document.querySelector(".btn1").onclick = function () {
+      alert(1)
+    }
+
+    // document.querySelector(".btn2").addEventListener("click", function() {
+    //   alert(22222)
+    // })
+
+
+
+
+  </script>
+
+
+
+</body>
+</html>