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/18课程/class18_2/课程/2020-12-22/event.html
+++ b/历届学生/18课程/class18_2/课程/2020-12-22/event.html
@@ -0,0 +1,51 @@
+<!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>
+        .main button {
+
+        }
+    </style>
+</head>
+<body>
+    <p onclick="test()">点我</p>
+    <div class="main">
+        <button>点我</button>
+    </div>
+
+    <div class="text"></div>
+</body>
+
+<script>
+    // 事件源
+    // 事件类型
+    // 事件处理函数
+    function test() {
+        alert("11111")
+    }
+
+    // document.querySelector(".main button").onclick = function () {
+    //     alert("1111")
+    // }
+
+    // document.querySelector(".main button").onclick = function () {
+    //     alert("2222")
+    // }
+
+    document.querySelector(".main button").addEventListener('click', function() {
+        alert("1111")
+    })
+
+    // document.querySelector(".main button").addEventListener('click', function() {
+    //     alert("2222")
+    // })
+
+    // document.querySelector(".main button").addEventListener('click', function() {
+    //     alert("3333")
+    // })
+    
+</script>
+</html>