<!DOCTYPE html> <html lang=“en”> <head> <meta charset=“UTF-8”> <meta name=“viewport” content=“width=device-width, initial-scale=1.0”> <title>Document</title> <script src=“js/jquery-1.12.4.min.js”></script> <script> // ajaxSetup() 方法，设置默认的参数 $.ajaxSetup({ url: “http://localhost:3000/users“, type: “post” }) // 发送 ajax请求 $.ajax({ data: {“name”: “polly”, “age”: 17, “class”: 4} }) $.ajax({ data: {“name”: “james”, “age”: 18, “class”: 4} }) </script> </head> <body> </body> </html>