diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/01-\344\275\223\351\252\214js.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/01-\344\275\223\351\252\214js.html"
new file mode 100644
index 0000000000000000000000000000000000000000..565179c2b47ebbd704fb752b8895ca3cf5613506
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/01-\344\275\223\351\252\214js.html"	
@@ -0,0 +1,32 @@
+<!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>Document</title>
+  <style>
+    .pink {
+      background-color: pink;
+    }
+  </style>
+</head>
+
+<body>
+  <button class="pink">按钮1</button>
+  <button>按钮2</button>
+  <button>按钮3</button>
+  <button>按钮4</button>
+  <script>
+    let bts = document.querySelectorAll('button')
+    for (let i = 0; i < bts.length; i++) {
+      bts[i].addEventListener('click', function () {
+        document.querySelector('.pink').className = ''
+        this.className = 'pink'
+      })
+    }
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/02-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\206\205\351\203\250.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/02-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\206\205\351\203\250.html"
new file mode 100644
index 0000000000000000000000000000000000000000..fdd18e77e5a0b0b4f890bcd326b923bef3886db4
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/02-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\206\205\351\203\250.html"	
@@ -0,0 +1,19 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <!-- 内部js -->
+  <script>
+    // 页面弹出警示框
+    alert('你好，js~')
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/03-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\244\226\351\203\250.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/03-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\244\226\351\203\250.html"
new file mode 100644
index 0000000000000000000000000000000000000000..e4a6cc3eee1d004b77c1a68601146b25b7d0b20e
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/03-js\344\271\246\345\206\231\344\275\215\347\275\256-\345\244\226\351\203\250.html"	
@@ -0,0 +1,17 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script src="./js/my.js">
+    // 中间不要写内容
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/04-\347\273\223\346\235\237\347\254\246.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/04-\347\273\223\346\235\237\347\254\246.html"
new file mode 100644
index 0000000000000000000000000000000000000000..1868f2ce6cf7d5274225068d0200f71dc892ef3d
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/04-\347\273\223\346\235\237\347\254\246.html"	
@@ -0,0 +1,18 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    alert('你好')
+    alert('我很好')
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/05-\350\276\223\345\205\245\345\222\214\350\276\223\345\207\272\350\257\255\346\263\225.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/05-\350\276\223\345\205\245\345\222\214\350\276\223\345\207\272\350\257\255\346\263\225.html"
new file mode 100644
index 0000000000000000000000000000000000000000..cca49eb28839e11275cca45a024bd46df7fcb86f
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/05-\350\276\223\345\205\245\345\222\214\350\276\223\345\207\272\350\257\255\346\263\225.html"	
@@ -0,0 +1,25 @@
+<!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>Document</title>
+</head>
+
+<body>
+
+  <script>
+    // 1. 文档输出内容
+    document.write('嘿嘿')
+    document.write('<h1>我是标题</h1>')
+    // 2. 控制台打印输出 给 程序员
+    console.log('看看对不对')
+    console.log('日志')
+    // 3. 输入语句
+    prompt('请输入你的年龄：')
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/06-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/06-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250.html"
new file mode 100644
index 0000000000000000000000000000000000000000..0f7393adf0ae07fe03d0fef3f8a4e11f55955a82
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/06-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250.html"	
@@ -0,0 +1,28 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1. 声明一个年龄变量
+    // let age
+    // // 2. 赋值   =  赋值
+    // age = 18
+    // console.log(age)
+    // 3. 声明的同时直接赋值  变量的初始化
+    // let age = 18
+    // 小案例
+    let num = 20
+    let uname = '阿雪哥'
+    console.log(num)
+    console.log(uname)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/07-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250\346\233\264\346\226\260.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/07-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250\346\233\264\346\226\260.html"
new file mode 100644
index 0000000000000000000000000000000000000000..2934094d207e74f711c377bf663f36cdda56ed0e
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/07-\345\217\230\351\207\217\347\232\204\344\275\277\347\224\250\346\233\264\346\226\260.html"	
@@ -0,0 +1,29 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+
+    // 1 声明的同时直接赋值  变量的初始化
+    // let age = 18
+    // age = 19
+    // // let age = 19
+    // console.log(age)
+    // 2. 声明多个变量    
+    // let age = 18, uname = '银古'
+    // console.log(age, uname)
+    // 提倡声明的方式
+    let age = 19
+    let uname = '银古'
+    console.log(age, uname)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/08-\350\276\223\345\205\245\347\224\250\346\210\267\345\220\215\346\241\210\344\276\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/08-\350\276\223\345\205\245\347\224\250\346\210\267\345\220\215\346\241\210\344\276\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..35b5673fd7c53dcb73027857f896c64f4876fdf1
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/08-\350\276\223\345\205\245\347\224\250\346\210\267\345\220\215\346\241\210\344\276\213.html"	
@@ -0,0 +1,23 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 输出用户名案例
+    // 1. 用户输入
+    // prompt('请输入姓名')
+    // 2. 内部处理保存数据
+    let uname = prompt('请输入姓名')
+    // 3. 打印输出
+    document.write(uname)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/09-\344\272\244\344\272\2222\344\270\252\345\217\230\351\207\217.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/09-\344\272\244\344\272\2222\344\270\252\345\217\230\351\207\217.html"
new file mode 100644
index 0000000000000000000000000000000000000000..cbd45e4adfc7acd626821dc8f02dfb506a1af32d
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/09-\344\272\244\344\272\2222\344\270\252\345\217\230\351\207\217.html"	
@@ -0,0 +1,25 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // let if = 10
+    let num1 = '阿雪哥'
+    let num2 = '鲁路修'
+    let temp
+    // 都是把右边给左边
+    temp = num1
+    num1 = num2
+    num2 = temp
+    console.log(num1, num2)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/10-\345\217\230\351\207\217\347\232\204\345\221\275\345\220\215\350\247\204\350\214\203.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/10-\345\217\230\351\207\217\347\232\204\345\221\275\345\220\215\350\247\204\350\214\203.html"
new file mode 100644
index 0000000000000000000000000000000000000000..f6cdad9ac9a6a078973bf06625b02b98b4458982
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/10-\345\217\230\351\207\217\347\232\204\345\221\275\345\220\215\350\247\204\350\214\203.html"	
@@ -0,0 +1,23 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // let if = 10
+    let num1$_ = 11
+    // let nav-bar = 11
+    // let 1num = 10
+    let pink = '学生'
+    let Pink = '角色'
+    console.log(pink, Pink)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/11-\350\276\223\345\205\245\345\247\223\345\220\215\345\271\264\351\276\204\346\241\210\344\276\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/11-\350\276\223\345\205\245\345\247\223\345\220\215\345\271\264\351\276\204\346\241\210\344\276\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..014c482cf242eaa3ab3eb166136ce0ca182a690a
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/11-\350\276\223\345\205\245\345\247\223\345\220\215\345\271\264\351\276\204\346\241\210\344\276\213.html"	
@@ -0,0 +1,21 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1. 姓名
+    let uname = prompt('请输入姓名')
+    let age = prompt('请输入年龄')
+    let gender = prompt('请输入性别')
+    document.write(uname, age, gender)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/12-let\345\222\214var\347\232\204\345\214\272\345\210\253.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/12-let\345\222\214var\347\232\204\345\214\272\345\210\253.html"
new file mode 100644
index 0000000000000000000000000000000000000000..449ac3f035b5dc24bd2ff8715d21b2d05a760263
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/12-let\345\222\214var\347\232\204\345\214\272\345\210\253.html"	
@@ -0,0 +1,31 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // var num
+    // console.log(num)
+    // num = 10
+    // num = 10
+    // console.log(num)
+    // var num
+    // var num = 10
+    // var num = 20
+    // console.log(num)
+    // num = 10
+    // console.log(num)
+    // let num
+    // let num = 20
+    // let num = 10
+    // console.log(num)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/13-\344\275\223\351\252\214\346\225\260\347\273\204.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/13-\344\275\223\351\252\214\346\225\260\347\273\204.html"
new file mode 100644
index 0000000000000000000000000000000000000000..cebf8629636f0932adb8aab4c66b0b0891fc3fdc
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/13-\344\275\223\351\252\214\346\225\260\347\273\204.html"	
@@ -0,0 +1,28 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // let arr = [10, 20, 30]
+    // 1. 声明数组 有序 
+    let arr = ['cc', '夏莉', '尤菲米娜', '柯内莉亚', '朱雀', 10]
+    // 2. 使用数组  数组名[索引号] 从0
+    // console.log(arr)
+    console.log(arr[0]) // 刘德华
+    console.log(arr[4])
+    // 3. 数组长度 =  索引号 + 1 
+    console.log(arr.length)  // 6
+
+    // let 刘德华 = 10
+    // console.log(刘德华)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/14-\345\270\270\351\207\217.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/14-\345\270\270\351\207\217.html"
new file mode 100644
index 0000000000000000000000000000000000000000..3a0fc0973314a85a13a4a8350910e9ced6277431
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/14-\345\270\270\351\207\217.html"	
@@ -0,0 +1,23 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1.常量 不允许更改值
+    // const PI = 3.14
+    // console.log(PI)
+    // PI = 3.15
+    // console.log(PI)
+    // 2. 常量声明的时候必须赋值
+    // const PI 
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/15-\345\237\272\346\234\254\346\225\260\346\215\256\347\261\273\345\236\213-\346\225\260\345\255\227\345\236\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/15-\345\237\272\346\234\254\346\225\260\346\215\256\347\261\273\345\236\213-\346\225\260\345\255\227\345\236\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..43c9a94d61681b1cd576f696a605a93e17310471
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/15-\345\237\272\346\234\254\346\225\260\346\215\256\347\261\273\345\236\213-\346\225\260\345\255\227\345\236\213.html"	
@@ -0,0 +1,33 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // js 弱数据类型的语言 只有当我们赋值了，才知道是什么数据类型
+    // let num = 'pink'
+    // let num = 10.11
+    // console.log(num)
+    console.log(1 + 1)
+    console.log(1 * 1)
+    console.log(1 / 1)
+    console.log(4 % 2) // 求余数
+    console.log(5 % 3) // 求余数  2 
+    console.log(3 % 5) // 求余数  3 
+    // java 强数据类型的语言    int num = 10
+
+    console.log('阿雪哥' - 2)
+    console.log(NaN - 2)
+    console.log(NaN + 2)
+    console.log(NaN / 2)
+    console.log(NaN === NaN)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/16-\350\256\241\347\256\227\345\234\206\347\232\204\351\235\242\347\247\257.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/16-\350\256\241\347\256\227\345\234\206\347\232\204\351\235\242\347\247\257.html"
new file mode 100644
index 0000000000000000000000000000000000000000..79a8bdcecb1321feb06df33e8bd3f4f74fb5e872
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/16-\350\256\241\347\256\227\345\234\206\347\232\204\351\235\242\347\247\257.html"	
@@ -0,0 +1,24 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1. 页面弹出输入框
+    let r = prompt('请输入圆的半径：')
+    // 2. 计算圆的面积（内部处理）
+    let re = 3.14 * r * r
+    // 3. 页面输出
+    document.write(re)
+
+    // NaN   not a number 
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/17-\345\255\227\347\254\246\344\270\262\347\261\273\345\236\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/17-\345\255\227\347\254\246\344\270\262\347\261\273\345\236\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..bce7922cc32ef3db64b7fa73f97815f1e806ad80
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/17-\345\255\227\347\254\246\344\270\262\347\261\273\345\236\213.html"	
@@ -0,0 +1,39 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // let str = 'pink'
+    // let str1 = "pink"
+    // let str2 = `中文`
+    // console.log(str2)
+    // console.log(11)
+    // console.log(`11`)
+    // console.log(str)
+    // console.log('str')
+    // console.log('pink老师讲课非常有"基情"')
+    // console.log("pink老师讲课非常有'基情'")
+    // console.log('pink老师讲课非常有\'基情\'')
+    // 字符串拼接
+    // console.log(1 + 1)
+    // console.log('pink' + '皇帝陛下')
+
+    let age = 25
+
+    // document.write('我今年' + 19)
+    // document.write('我今年' + age)
+    // document.write('我今年' + age + '岁了')
+    document.write('我今年' + age + '岁了')
+
+
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/18-\346\250\241\346\235\277\345\255\227\347\254\246\344\270\262.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/18-\346\250\241\346\235\277\345\255\227\347\254\246\344\270\262.html"
new file mode 100644
index 0000000000000000000000000000000000000000..c4ec55fdba60abd852de7b25d876f5acfe7363e3
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/18-\346\250\241\346\235\277\345\255\227\347\254\246\344\270\262.html"	
@@ -0,0 +1,23 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // let age = 20
+    // // 模板字符串 外面用`` 里面 ${变量名}
+    // document.write(`我今年${age}岁了`)
+    let uname = prompt('请输入您的姓名:')
+    let age = prompt('请输入您的年龄:')
+    // 输出
+    document.write(`大家好，我叫${uname}， 我今年贵庚${age}岁了`)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/19-\345\205\266\344\273\226\344\270\211\347\247\215\347\261\273\345\236\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/19-\345\205\266\344\273\226\344\270\211\347\247\215\347\261\273\345\236\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..eb989fb324c0c3f8bb256a5f476bfeaf86229b1c
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/19-\345\205\266\344\273\226\344\270\211\347\247\215\347\261\273\345\236\213.html"	
@@ -0,0 +1,29 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1. true  false 是布尔型字面量  
+    // console.log(3 > 4)
+    // let isCool = false
+    // console.log(isCool)
+    // 2. 未定义类型   弱数据类型   声明一个变量未赋值就是 undefined
+    // let num
+    // console.log(num)
+    // 3. null 空的
+    // let obj = null
+    // console.log(obj)
+    // 计算有区别
+    console.log(undefined + 1)  // NaN
+    console.log(null + 1) // 1
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/20-\346\243\200\346\265\213\346\225\260\346\215\256\347\261\273\345\236\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/20-\346\243\200\346\265\213\346\225\260\346\215\256\347\261\273\345\236\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..a28dc408a6fae1b8b7e12d2f8399554dde7016d5
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/20-\346\243\200\346\265\213\346\225\260\346\215\256\347\261\273\345\236\213.html"	
@@ -0,0 +1,32 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    let num = 10
+    console.log(typeof num)
+    let str = 'pink'
+    console.log(typeof str)
+    let str1 = '10'
+    console.log(typeof str1)
+    let flag = false
+    console.log(typeof flag)
+    let un
+    console.log(typeof (un))
+    let obj = null
+    console.log(typeof obj)
+
+
+    let num1 = prompt('请输入第一个数：')
+    console.log(typeof num1)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/21-\351\232\220\345\274\217\350\275\254\346\215\242.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/21-\351\232\220\345\274\217\350\275\254\346\215\242.html"
new file mode 100644
index 0000000000000000000000000000000000000000..649d5866aa0ffb5f160c739e6242b99ff97b20a2
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/21-\351\232\220\345\274\217\350\275\254\346\215\242.html"	
@@ -0,0 +1,24 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    console.log(1 + 1)
+    console.log('pink' + 1)
+    console.log(2 + 2)
+    console.log(2 + '2') // 22
+    console.log(2 - 2)
+    console.log(2 - '2')  // 0  
+    console.log(+12)
+    console.log(+'123')  // 转换为数字型
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/22-\346\230\276\347\244\272\350\275\254\346\215\242.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/22-\346\230\276\347\244\272\350\275\254\346\215\242.html"
new file mode 100644
index 0000000000000000000000000000000000000000..ea21bbefbf23824af371f37d3b6e0d6e170edf6a
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/22-\346\230\276\347\244\272\350\275\254\346\215\242.html"	
@@ -0,0 +1,39 @@
+<!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>Document</title>
+  <style>
+    .box {
+      width: 50px;
+      height: 50px;
+    }
+  </style>
+</head>
+
+<body>
+  <script>
+    let str = '123'
+    console.log(Number(str))
+    console.log(Number('pink'))
+    // let num = Number(prompt('输入年薪'))
+    // let num = +prompt('输入年薪')
+    // console.log(Number(num))
+    // console.log(num)
+    console.log(parseInt('12px'))
+    console.log(parseInt('12.34px'))
+    console.log(parseInt('12.94px'))
+    console.log(parseInt('abc12.94px'))
+
+    // -------------------
+    console.log(parseFloat('12px')) // 12
+    console.log(parseFloat('12.34px')) // 12.34
+    console.log(parseFloat('12.94px')) // 12.94
+    console.log(parseFloat('abc12.94px')) // 12.94
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/23-\346\261\202\345\222\214\346\241\210\344\276\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/23-\346\261\202\345\222\214\346\241\210\344\276\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..3e1b29590eaacf5a9704a641baa7da01ac3c4386
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/23-\346\261\202\345\222\214\346\241\210\344\276\213.html"	
@@ -0,0 +1,21 @@
+<!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>Document</title>
+</head>
+
+<body>
+  <script>
+    // 1. 用户输入   prompt 得到是字符串类型 要转换为 数字型
+    let num1 = +prompt('请输入第一个数字：')
+    let num2 = +prompt('请输入第二个数字：')
+    // 2. 输出
+    alert(`两个数相加的和是:${num1 + num2}`)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/24-\347\273\274\345\220\210\346\241\210\344\276\213.html" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/24-\347\273\274\345\220\210\346\241\210\344\276\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..39d7dfe46d6fe3a9833ae6faab3ad461c6a9654a
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/24-\347\273\274\345\220\210\346\241\210\344\276\213.html"	
@@ -0,0 +1,67 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Document</title>
+  <style>
+    h2 {
+      text-align: center;
+    }
+
+    table {
+      /* 合并相邻边框 */
+      border-collapse: collapse;
+      height: 80px;
+      margin: 0 auto;
+      text-align: center;
+    }
+
+    th {
+      padding: 5px 30px;
+    }
+
+    table,
+    th,
+    td {
+      border: 1px solid #000;
+    }
+  </style>
+</head>
+
+<body>
+  <h2>订单确认</h2>
+
+
+  <script>
+    // 1 用户输入
+    let price = +prompt('请输入商品价格：')
+    let num = +prompt('请输入商品数量：')
+    let address = prompt('请输入收获地址：')
+    // 2.计算总额
+    let total = price * num
+    // 3.页面打印渲染
+    document.write(`
+      <table>
+          <tr>
+            <th>商品名称</th>
+            <th>商品价格</th>
+            <th>商品数量</th>
+            <th>总价</th>
+            <th>收货地址</th>
+          </tr>
+          <tr>
+            <td>小米青春版PLUS</td>
+            <td>${price}元</td>
+            <td>${num}</td>
+            <td>${total}元</td>
+            <td>${address}</td>
+          </tr>
+        </table>
+    `)
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git "a/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/js/my.js" "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/js/my.js"
new file mode 100644
index 0000000000000000000000000000000000000000..26f5d18f2fd542e74c4a68cd7ae08e2b07cfaa25
--- /dev/null
+++ "b/40 \351\273\204\346\230\245\351\233\252/2024_10_25_js/js/my.js"	
@@ -0,0 +1 @@
+alert('我是外部的 js文件')
\ No newline at end of file
