第二天

2025-10-13 10:15:32 +08:00
parent 2e4fbfc22c
commit 61ec7c9468
18 changed files with 16637 additions and 0 deletions
--- a/前端Web基础(JS+Vue+Ajax)/JS-Vue/03.
+++ b/前端Web基础(JS+Vue+Ajax)/JS-Vue/03.
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>JS-数据类型</title>
+</head>
+<body>
+  
+
+  <script>
+    //1. 数据类型
+    // alert(typeof 10); 
+    // alert(typeof 1.5); 
+    
+    // alert(typeof true); 
+    // alert(typeof false); 
+
+    // alert(typeof "Hello");
+    // alert(typeof 'JS'); 
+    // alert(typeof `JavaScript`); 
+
+    // alert(typeof null);   
+
+    // let a ;
+    // alert(typeof a); 
+
+    // 2.模板字符串
+    let name = `小王`;
+    let age = 18;
+
+    console.log(`我是${name},我今年${age}岁`);
+    console.log('我是' + name + '，我今年' + age + '岁');
+    
+    
+  </script>
+</body>
+</html>