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/韩一伟/项目开发/上课项目/tabs切换/message.html
+++ b/历届学生/韩一伟/项目开发/上课项目/tabs切换/message.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>留言</title>
+    <style>
+        body {
+            margin: 0;
+            padding: 0;
+        }
+        textarea {
+            resize: none;
+            width: 100%;
+            height: 100%;
+        }
+        .main {
+            position: relative;
+            margin: 10% auto;
+            width: 300px;
+            height: 200px;
+        }
+        .main span {
+            position: absolute;
+            right: 10px;
+            bottom: 10px;
+        }
+    </style>
+</head>
+<body>
+    
+    <div class="main">
+        <textarea name="" id="" cols="30" rows="10"></textarea>
+        <span class="text">0/30</span>
+    </div>
+
+</body>
+
+<script>
+    var input = document.querySelector("textarea")
+    var text = document.querySelector(".text")
+
+    input.oninput = function () {
+        if (input.value.length > 30) {
+            input.value = input.value.substring(0,30)
+        } else {
+            text.innerText = `${input.value.length}/30`
+        }
+    }
+</script>
+
+</html>