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/front-end-team-11/项目开发/上课项目/ajax案例/http.js
+++ b/历届学生/front-end-team-11/项目开发/上课项目/ajax案例/http.js
@@ -0,0 +1,66 @@
+class Http {
+    defaultOption = {
+        timeout: 6000,
+        headers: {
+            'Content-Type': 'application/json;charset=utf-8'
+        }
+    }
+
+    constructor() {
+        this.xhr = new XMLHttpRequest()
+    }
+
+    get(par) {
+        return new Promise((success, error) => {
+            this.setOption(par)
+            let urlParams = ""
+            for (const key in par.data) {
+                urlParams += `&${key}=${par.data[key]}`
+            }
+            urlParams = urlParams.replace("&", "")
+            this.xhr.open("GET", `${par.url}?${urlParams}`)
+            this.xhr.timeout = this.defaultOption.timeout
+            this.setHeader(par.headers)
+            this.xhr.send()
+            this.statechange(success, error);
+        })
+    }
+
+    post(par) {
+        return new Promise((success, error) => {
+            this.setOption(par)
+            this.xhr.open("POST", par.url)
+            this.xhr.timeout = this.defaultOption.timeout
+            this.setHeader(par.headers)
+            this.xhr.send(JSON.stringify(par.data))
+            this.statechange(success, error);
+        })
+    }
+
+    setOption(par) {
+        this.defaultOption.timeout = par.timeout || this.defaultOption.timeout
+        // ....
+    }
+
+    setHeader(headerObject = {}) {
+        Object.assign(headerObject, this.defaultOption.headers)
+        for (const key in headerObject) {
+            this.xhr.setRequestHeader(key, headerObject[key]);
+        }
+    }
+
+    statechange(success, error) {
+        this.xhr.onreadystatechange = () => {
+            if (this.xhr.readyState == 4) {
+                if (this.xhr.status == 200) {
+                    let data = JSON.parse(this.xhr.response)
+                    success(data.result)
+                } else {
+                    error(this.xhr)
+                }
+            }
+        }
+    }
+}
+
+var http = new Http();
--- a/历届学生/front-end-team-11/项目开发/上课项目/ajax案例/index.html
+++ b/历届学生/front-end-team-11/项目开发/上课项目/ajax案例/index.html
@@ -0,0 +1,84 @@
+<!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>
+        body,li{
+            margin: 0;
+            padding: 0;
+            list-style: none;
+        }
+        ul {
+            display: flex;
+            flex-wrap: wrap;
+        }
+        li {
+            width: 20%;
+            margin-bottom: 30px;
+        }
+        li img {
+            width: 100%;
+        }
+    </style>
+</head>
+<body>
+    <ul>
+       </a>
+    </ul>
+
+    <button>点我</button>
+    <div class="result"></div>
+</body>
+<script src="./http.js"></script>
+<script>
+    let page = 1, total_page = 0;
+
+    let getList = async () => {
+        let res = await http.get({
+            url: 'http://127.0.0.1:3000/api/json/classList',
+            data: {
+                id: 253,
+                page
+            }
+        });
+        total_page = res.total_page
+        renderPage(res)
+    }
+
+    let renderPage = (res) => {
+        res.data.forEach(v => {
+            $("ul").innerHTML += `
+             <li>
+                <a target="_blank" href="./info.html?id=${v.id}&total=${v.total}">
+                  <img src="${v.preview}" alt="">
+                  <p>${v.title}</p>
+                </a>
+             </li>`
+        });
+    }
+
+
+    $("button").onclick = () => {
+        page +=1;
+        if (page <= total_page) {
+            getList()
+        } else {
+            $(".result").innerText = "没有数据了"
+        }
+    }
+
+
+
+    getList()
+
+
+
+
+    function $(className) {
+        return document.querySelector(className);
+    }
+</script>
+</html>
--- a/历届学生/front-end-team-11/项目开发/上课项目/ajax案例/info.html
+++ b/历届学生/front-end-team-11/项目开发/上课项目/ajax案例/info.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>
+        body,
+        li {
+            margin: 0;
+            padding: 0;
+            list-style: none;
+        }
+        img {
+            width: 100%;
+        }
+    </style>
+</head>
+
+<body>
+    <div class="info">
+       
+    </div>
+</body>
+<script src="./http.js"></script>
+<script>
+
+
+    let getInfo = async () => {
+        let res = await http.get({
+            url: 'http://127.0.0.1:3000/api/json/info',
+            data: {
+                id: query("id"),
+                quantity: query("total")
+            }
+        });
+        renderPage(res)
+    }
+
+    let renderPage = (res) => {
+        console.log(res);
+        res.forEach(v => {
+            $(".info").innerHTML += `
+             <img src="${v}" alt="">
+            `
+        });
+    }
+
+
+    getInfo()
+
+    function query(name) {
+        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
+        var r = window.location.search.substr(1).match(reg);
+        if (r != null)
+            return unescape(r[2]);
+        return null;
+    }
+
+    function $(className) {
+        return document.querySelector(className);
+    }
+</script>
+
+</html>