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/font-end-nine/项目练习/学生项目/冯文焌/6ajax/index.html
+++ b/历届学生/font-end-nine/项目练习/学生项目/冯文焌/6ajax/index.html
@@ -0,0 +1,59 @@
+<!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>
+<form action="">
+    <input type="text" name="id">
+</form>
+
+
+    <ul>
+        
+    </ul>
+</body>
+<script>
+    // 1  创建一个新的对象      举例：拿出手机 
+    // fetch 全新的ajax请求方式  后面再用   //XHR
+     var ajax = new XMLHttpRequest() 
+
+     //2 传入后端地址  （配置需要访问的后端地址和请求方式）举例：设置号码 
+     ajax.open("POST","http://127.0.0.1/index.php?")
+
+     var form = new FormData();
+     form.append("id",1)
+
+     var params = {
+        id:1
+     }
+     //更改请求头类型，系统为Content-Type 更改为application    中文格式charset=UTF-8
+    //  ajax.setRequestHeader('Content-Type','application/json,charset=UTF-8')  //json格式发送后端
+     ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded;charset=UTF-8')  //form表单格式传给后端
+       
+
+     //3  发送请求     举例：拨号
+    //  ajax.send(JSON.stringify(params))
+    ajax.send(form)
+
+     //监听请求状态
+     ajax.onreadystatechange = function () {
+
+        if (ajax.readyState == 4){
+            if (ajax.status ==200){
+                var data = JSON.parse(ajax.responseText)
+            //字符串转换为对象 JSON.parse   //对象转换为字符串 JSON.stringify
+            console.log(data);
+           data.result.forEach(v => {
+            document.querySelector("ul").innerHTML += `<li>${v.title}</li>`
+           });
+            }else{
+                alert("网络请求失败")
+            }
+        } 
+     }
+</script>
+</html>