From d1198bc2375319acfe3cd9d7549ea7fcd74e83a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BB=96=E6=B3=B0=E7=8E=AE?= <naehe@foxmail.com>
Date: Thu, 21 Nov 2024 13:19:00 +0800
Subject: [PATCH] tj

---
 ...\345\207\217\346\223\215\344\275\234.html" | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 "\345\273\226\346\263\260\347\216\256/20241119 \350\264\255\347\211\251\350\275\246\345\212\240\345\207\217\346\223\215\344\275\234.html"
diff --git "a/\345\273\226\346\263\260\347\216\256/20241119 \350\264\255\347\211\251\350\275\246\345\212\240\345\207\217\346\223\215\344\275\234.html" "b/\345\273\226\346\263\260\347\216\256/20241119 \350\264\255\347\211\251\350\275\246\345\212\240\345\207\217\346\223\215\344\275\234.html"
new file mode 100644
index 0000000..5260431
--- /dev/null
+++ "b/\345\273\226\346\263\260\347\216\256/20241119 \350\264\255\347\211\251\350\275\246\345\212\240\345\207\217\346\223\215\344\275\234.html"	
@@ -0,0 +1,67 @@
+<!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>Document</title>
+  <style>
+    div {
+      width: 80px;
+    }
+
+    input[type=text] {
+      width: 50px;
+      height: 44px;
+      outline: none;
+      border: 1px solid #ccc;
+      text-align: center;
+      border-right: 0;
+    }
+
+    input[type=button] {
+      height: 24px;
+      width: 22px;
+      cursor: pointer;
+    }
+
+    input {
+      float: left;
+      border: 1px solid #ccc;
+
+    }
+  </style>
+</head>
+
+<body>
+  <div>
+    <input type="text" id="total" value="1" readonly>
+    <input type="button" value="+" id="add">
+    <input type="button" value="-" id="reduce" disabled>
+
+    <script>
+      // + - 操作，数字不能小于1
+      const add=document.querySelector('#add')
+      const reduce=document.querySelector('#reduce')
+      const text=document.querySelector('#total')
+      let value
+      add.addEventListener('click',function () {
+        value=text.value
+        value++
+        text.value=value
+        text.value>1?reduce.disabled=false:reduce.disabled=true
+      })
+      reduce.addEventListener('click',function () {
+       
+        value1=text.value
+        value--
+        text.value=value
+        text.value==1?reduce.disabled=true:reduce.disabled=false
+      })
+    </script>
+
+  </div>
+</body>
+
+</html>
\ No newline at end of file
-- 
Gitee

