• 一个简单的前端实例页面


    一. 页面

    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title></title>
        <link rel="stylesheet" type="text/css" href="../../static/exam_static/css/bootstrap.css">
        <!--[if IE 7]>
        <link rel="stylesheet" href="../../static/exam_static/css/font/font-awesome-ie7.min.css"><![endif]-->
        <link rel="stylesheet" type="text/css" href="../../static/exam_static/css/common.css">
        <link rel="stylesheet" type="text/css" href="../../static/exam_static/css/practice/test-system.css">
        <!--[if !IE]> -->
        <script type="text/javascript">
            window.jQuery || document.write("<script src='../../static/exam_static/js/jquery-2.0.3.min.js'>" + "<" + "/script>");
        </script>
        <!-- <![endif]-->
        <script type="text/javascript">
            window.jQuery || document.write("<script src='../../static/exam_static/js/jquery-1.9.1.min.js'>" + "<" + "/script>");
        </script>
        <script src="../../static/exam_static/js/bootstrap.min.js"></script>
    
    </head>
    <body style="background-color: #e7eff9;">
    <div class="headbg position_fixed">
        <div class="container header">
            <div class="navheader">
                <div class="left-title">
                    考试中心
                </div>
                <div class="middle-title" id="exam-title"></div>
                <input type="submit" value="批改完成" style="margin-right: -150px; border: 0; color: #00a2d4" class="right-title" id="correction-completed">
                <div class="right-title">现得分:<span id="exam-score"></span></div>
    
            </div>
        </div>
    </div>
    
    <div class="right_nav btn-group-vertical">
        <!--<a class="btn btn-success nav_dr">
            <i class="glyphicon glyphicon-eye-open"></i>
            <p>只看错题</p>
        </a>
        <a class="btn btn-success nav_dr">
            <i class="glyphicon glyphicon-log-out"></i>
            <p>试卷导出</p>
        </a>-->
        <a href="javascript:;" id="toTop" class="btn btn-success nav_dr">
            <i class="glyphicon glyphicon-log-out"></i>
            <p>返回顶部</p>
        </a>
    </div>
    
    <div class="container margin-top-75 exam_wrong_main">
        <ul class="picture" id="exam-picture" style="display: none">
            <!--<li>
                <img src="../../static/exam_static/images/practice/xinxiaomeng5.jpg" class="img-thumbnail">
                <p>本人照片</p>
            </li>
            <li>
                <img src="../../static/exam_static/images/practice/xinxiaomeng2.jpg" class="img-thumbnail">
                <p>开考1分钟</p>
            </li>
            <li>
                <img src="../../static/exam_static/images/practice/xinxiaomeng3.png" class="img-thumbnail">
                <p>开考30分钟</p>
            </li>
            <li>
                <img src="../../static/exam_static/images/practice/xinxiaomeng4.jpg" class="img-thumbnail">
                <p>开考60分钟</p>
            </li>-->
        </ul>
        <div class="wrong_box" id="exam-Judge" style="display:none">
            <!--判断题答案 begin-->
            <div>
                <div class="single-container">
                    <div class="single-title">
                        <span class="font-title">一、判断题</span>
                        <span class="grey_color" id="Judge-points-possible"></span>
                        <span class="right_title" id="Judge-correct-answer"><i
                                class="glyphicon glyphicon-ok-sign"></i></span>
                        <span class="wrong_title" id="Judge-wrong-answer"><i
                                class="glyphicon glyphicon-remove-sign"></i></span>
                        <span class="green_color" id="Judge-score"></span><span style="color: #86c440"></span>
                    </div>
                </div>
                <div id="Judge-problem"></div>
            </div>
            <!--判断题答案 end-->
        </div>
        <div class="wrong_box" id="exam-Single" style="display:none">
            <!--单选题 begin-->
            <div>
                <div class="single-container">
                    <div class="single-title">
                        <span class="font-title">二、单选题</span>
                        <span class="grey_color" id="Single-points-possible"></span>
                        <span class="right_title" id="Single-correct-answer"><i
                                class="glyphicon glyphicon-ok-sign"></i></span>
                        <span class="wrong_title" id="Single-wrong-answer"><i
                                class="glyphicon glyphicon-remove-sign"></i></span>
                        <span class="green_color" id="Single-score"></span><span style="color: #86c440"></span>
                    </div>
                </div>
                <div id="Single-problem"></div>
            </div>
            <!--单选题 end-->
        </div>
        <div class="wrong_box" id="exam-Multiple" style="display:none">
            <!--多选题 begin-->
            <div>
                <div class="single-container">
                    <div class="single-title">
                        <span class="font-title">三、多选题</span>
                        <span class="grey_color" id="Multiple-points-possible"></span>
                        <span class="right_title" id="Multiple-correct-answer"><i
                                class="glyphicon glyphicon-ok-sign"></i></span>
                        <span class="wrong_title" id="Multiple-wrong-answer"><i class="glyphicon glyphicon-remove-sign"></i></span>
                        <span class="green_color" id="Multiple-score"></span><span style="color: #86c440"></span>
                    </div>
                </div>
                <div id="Multiple-problem"></div>
            </div>
            <!--多选题 end-->
        </div>
        <div class="wrong_box" id="exam-Reply" style="display:none">
            <!--问答题 begin-->
            <div>
                <div class="single-container">
                    <div class="single-title">
                        <span class="font-title">四、问答题</span>
                        <span class="grey_color" id="Reply-points-possible"></span>
                    </div>
                </div>
                <div id="Reply-problem"></div>
            </div>
            <!--问答题 end-->
        </div>
    </div>
    
    <script src="../../static/exam_static/js/new-exam/commonConfig.js"></script>
    <script src="../../static/exam_static/js/new-exam/teacher-revies-exam.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            var user_id = getTaskId().user_id;
            var context_id = getTaskId().context_id;
            getTestSelf(context_id);
            getTeacherReviseExamList(user_id, context_id);
        });
    
        // 老师批改
        $("#sub-score").click(function () {
            teacherApproval(submission_id, context_id, context_type);
        });
    
        // 老师批改完成
        $("#correction-completed").click(function () {
            teacherCorrectionCompleted(user_id, context_id)
        });
    
        function getTaskId() {
            var url = location.search; //获取url中"?"符后的字串
            var theRequest = new Object();
            var sign = url.indexOf("?")
            if (sign != -1) {
                var str = url.substr(sign + 1);
                strs = str.split("&");
                for (var i = 0; i < strs.length; i++) {
                    theRequest[strs[i].split("=")[0]] = strs[i].split("=")[1];
                }
            }
            return theRequest;
        }
    </script>
    </body>
    
    </html>

    二. 配套JS

    function getTeacherReviseExamList(user_id, context_id) {
        console.log(user_id, context_id);
        $.ajax({
            type: "GET",
            url: baseUrl + "/api/v1/teacher/revise/exam/list",
            dataType: "json",
            data: {
                user_id:user_id,
                context_id:context_id,
            },
            headers: {"Authorization": "Bearer " + Token},
            success: function (res) {
                console.log("11111111", res);
                var data = res.data;
                var judges_str = '';        // 判断str
                var singles_str = '';       // 单选str
                var multiples_str = '';     // 多选str
                var replys_str = '';        // 问答str
                var faces_auth_str = '';    // 人脸识别str
    
                if (data) {
                    document.getElementById("exam-score").appendChild(document.createTextNode(data.ktscore));
                } else {
                    alert("错误!!");
                    return
                }
    
                // 渲染faces_auth_picture
                data.faces = ["../../static/exam_static/images/practice/xinxiaomeng5.jpg",
                            "../../static/exam_static/images/practice/xinxiaomeng2.jpg",
                            "../../static/exam_static/images/practice/xinxiaomeng3.png",
                            "../../static/exam_static/images/practice/xinxiaomeng4.jpg"];
                if (data.faces) {
                    document.getElementById("exam-picture").style.display = "block";
                    $.each(data.faces, function (i, v) {
                        faces_auth_str += `
                                <li>
                                    <img src=` + v + ` class="img-thumbnail">
                                    <p>本人照片</p>
                                </li>
                        `
                    });
                    $("#exam-picture").empty();
                    $("#exam-picture").append(faces_auth_str);
                }
    
                $.each(data.questions, function (i, obj) {
                    console.log("i++++", i);
                    console.log("obj++++", obj);
                    if (i == "judges") {
                        var judges_points_possible = 0; // 总分
                        var judges_correct_answer = 0;  // 回答正确计数
                        var judges_wrong_answer = 0;    // 回答错误计数
                        var judges_score = 0;           // 正确总分
                        var judges_obj_length = obj.length;    // 总题
                        var html_judges_problem_list = new Array();   // html中问题的list
                        var html_judges_answer_list = new Array();    // html中答案的str
                        document.getElementById("exam-Judge").style.display = "block";
                        $.each(obj, function (index, value) {
                            var html_judges_problem_str = "";
    
                            res = answers_analysis_html(value, judges_correct_answer, judges_wrong_answer, judges_points_possible, judges_score, context_id);
                            html_judges_answer_list.push(res["html_answer_str"]);
                            judges_correct_answer = res["correct_answer"];
                            judges_wrong_answer = res["wrong_answer"];
                            judges_points_possible = res["points_possible_count"];
                            judges_score = res["score_count"];
    
                            $.each(value.question_text, function (i, v) {
                                if (value.answer == Object.keys(v)[0]) {
                                    html_judges_problem_str += `
                                        <div class="radio">
                                            <label class="wrong-box blue-border">
                                                <i class="glyphicon glyphicon-ok-sign"></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else if (value.user_anser == Object.keys(v)[0] && value.user_anser != value.answer) {
                                    html_judges_problem_str += `
                                        <div class="radio">2
                                            <label class="correct-box blue-border">
                                                <i class="glyphicon glyphicon-remove-sign "></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else {
                                    html_judges_problem_str += `
                                        <div class="radio">
                                            <label class="correct-box default-border">
                                                <input type="radio" disabled="disabled">
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                }
                            });
                            html_judges_problem_list.push(html_judges_problem_str);
    
                            judges_str += `<div class="problem">`;
                            judges_str += `
                                <div class="single-main">
                                    <p>` + value.n + "." + value.title + "(" + value.points_possible + "分)" + `</p>
                                </div>`;
                            judges_str += `<div class="choose-box">`;
                            judges_str += html_judges_problem_list[index];
                            judges_str += `</div>`;
                            judges_str += html_judges_answer_list[index];
                            judges_str += ` </div>`
                        });
                        var html_str = "(" + String(judges_obj_length) + "道,共" + String(judges_points_possible) + "分)";
                        document.getElementById("Judge-points-possible").appendChild(document.createTextNode(html_str));
                        document.getElementById("Judge-correct-answer").appendChild(document.createTextNode(judges_correct_answer));
                        document.getElementById("Judge-wrong-answer").appendChild(document.createTextNode(judges_wrong_answer));
                        document.getElementById("Judge-score").appendChild(document.createTextNode(judges_score));
    
                    } else if (i == "singles") {
                        var singles_points_possible = 0; // 总分
                        var singles_correct_answer = 0;  // 回答正确计数
                        var singles_wrong_answer = 0;    // 回答错误计数
                        var singles_score = 0;           // 正确总分
                        var singles_obj_length = obj.length;    // 总题
                        var html_singles_problem_list = new Array();   // html中问题的list
                        var html_singles_answer_list = new Array();    // html中答案的list
                        document.getElementById("exam-Single").style.display = "block";
                        $.each(obj, function (index, value) {
                            var html_singles_problem_str = "";
    
                            res = answers_analysis_html(value, singles_correct_answer, singles_wrong_answer, singles_points_possible, singles_score, context_id);
                            html_singles_answer_list.push(res["html_answer_str"]);
                            singles_correct_answer = res["correct_answer"];
                            singles_wrong_answer = res["wrong_answer"];
                            singles_points_possible = res["points_possible_count"];
                            singles_score = res["score_count"];
    
                            $.each(value.question_text, function (i, v) {
                                if (value.answer == Object.keys(v)[0]) {
                                    html_singles_problem_str += `
                                        <div class="radio">
                                            <label class="wrong-box blue-border">
                                                <i class="glyphicon glyphicon-ok-sign"></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else if (value.user_anser == Object.keys(v)[0] && value.user_anser != value.answer) {
                                    html_singles_problem_str += `
                                        <div class="radio">
                                            <label class="correct-box blue-border">
                                                <i class="glyphicon glyphicon-remove-sign "></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else {
                                    html_singles_problem_str += `
                                        <div class="radio">
                                            <label class="correct-box default-border">
                                                <input type="radio" disabled="disabled">
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                }
                            });
                            html_singles_problem_list.push(html_singles_problem_str);
    
                            singles_str += `<div class="problem">`;
                            singles_str += `
                                <div class="single-main">
                                    <p>` + value.n + "." + value.title + "(" + value.points_possible + "分)" + `</p>
                                </div>`;
                            singles_str += `<div class="choose-box">`;
                            singles_str += html_singles_problem_list[index];
                            singles_str += `</div>`;
                            singles_str += html_singles_answer_list[index];
                            singles_str += ` </div>`
                        });
                        var html_str = "(" + String(singles_obj_length) + "道,共" + String(singles_points_possible) + "分)";
                        document.getElementById("Single-points-possible").appendChild(document.createTextNode(html_str));
                        document.getElementById("Single-correct-answer").appendChild(document.createTextNode(singles_correct_answer));
                        document.getElementById("Single-wrong-answer").appendChild(document.createTextNode(singles_wrong_answer));
                        document.getElementById("Single-score").appendChild(document.createTextNode(singles_score));
    
                    } else if (i == "multiples") {
                        var multiples_points_possible = 0; // 总分
                        var multiples_correct_answer = 0;  // 回答正确计数
                        var multiples_wrong_answer = 0;    // 回答错误计数
                        var multiples_score = 0;           // 正确总分
                        var multiples_obj_length = obj.length;    // 总题
                        var html_multiples_problem_list = new Array();   // html中问题的list
                        var html_multiples_answer_list = new Array();    // html中答案的list
                        document.getElementById("exam-Multiple").style.display = "block";
                        $.each(obj, function (index, value) {
                            var html_multiples_problem_str = "";
    
                            res = answers_analysis_html(value, multiples_correct_answer, multiples_wrong_answer, multiples_points_possible, multiples_score, context_id);
                            html_multiples_answer_list.push(res["html_answer_str"]);
                            multiples_correct_answer = res["correct_answer"];
                            multiples_wrong_answer = res["wrong_answer"];
                            multiples_points_possible = res["points_possible_count"];
                            multiples_score = res["score_count"];
    
                            $.each(value.question_text, function (i, v) {
                                if (value.answer == value.user_anser) {
                                    html_multiples_problem_str += `
                                        <div class="radio">
                                            <label class="wrong-box blue-border">
                                                <i class="glyphicon glyphicon-ok-sign"></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else if (value.user_anser != value.answer && value.user_anser.indexOf(Object.keys(v)[0]) == -1 && value.answer.indexOf(Object.keys(v)[0]) > -1) {
                                    html_multiples_problem_str += `
                                        <div class="radio">
                                            <label class="correct-box blue-border">
                                                <i class="glyphicon glyphicon-remove-sign "></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else if (value.user_anser != value.answer && value.user_anser.indexOf(Object.keys(v)[0]) > -1 && value.answer.indexOf(Object.keys(v)[0]) == -1) {
                                    html_multiples_problem_str += `
                                        <div class="radio">
                                            <label class="correct-box blue-border">
                                                <i class="glyphicon glyphicon-remove-sign "></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else if (value.user_anser != value.answer && value.answer.indexOf(Object.keys(v)[0]) > -1) {
                                    html_multiples_problem_str += `
                                        <div class="radio">
                                            <label class="wrong-box blue-border">
                                                <i class="glyphicon glyphicon-ok-sign"></i>
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                } else {
                                    html_multiples_problem_str += `
                                        <div class="checkbox">
                                            <label class="correct-box default-border">
                                                <input type="checkbox" value="" disabled="disabled">
                                                <p><span>` + Object.keys(v)[0] + `</span>&nbsp;` + v[Object.keys(v)[0]] + `</p>
                                            </label>
                                        </div>
                                    `
                                }
                            });
                            html_multiples_problem_list.push(html_multiples_problem_str);
    
                            multiples_str += `<div class="problem">`;
                            multiples_str += `
                                <div class="single-main">
                                    <p>` + value.n + "." + value.title + "(" + value.points_possible + "分)" + `</p>
                                </div>`;
                            multiples_str += `<div class="choose-box">`;
                            multiples_str += html_multiples_problem_list[index];
                            multiples_str += `</div>`;
                            multiples_str += html_multiples_answer_list[index];
                            multiples_str += ` </div>`
                        });
                        var html_str = "(" + String(multiples_obj_length) + "道,共" + String(multiples_points_possible) + "分)";
                        document.getElementById("Multiple-points-possible").appendChild(document.createTextNode(html_str));
                        document.getElementById("Multiple-correct-answer").appendChild(document.createTextNode(multiples_correct_answer));
                        document.getElementById("Multiple-wrong-answer").appendChild(document.createTextNode(multiples_wrong_answer));
                        document.getElementById("Multiple-score").appendChild(document.createTextNode(multiples_score));
    
                    } else if (i == "replys") {
                        var replys_points_possible = 0; // 总分
                        var replys_obj_length = obj.length;    // 总题
                        document.getElementById("exam-Reply").style.display = "block";
                        $.each(obj, function (index, value) {
                            replys_points_possible += value.points_possible;
    
                            replys_str += `<div class="problem">`;
                            replys_str += `
                                <div class="single-main">
                                    <p>` + value.n + "." + value.title + "(" + value.points_possible + "分)" + `</p>
                                </div>`;
                            replys_str += `
                                <div class="answer-box">
                                    <span class="right-line-blue"></span>
                                    <span>考生答案:</span>
            
                                    <div style="float: right; margin-right: 10px;  10%; height: 120px;">
                                        <span class="right-line-blue"></span>
                                        <span>评分:</span>
                                        <input type="text" class="form-control" placeholder="得分" id="teacher_approval"
                                               style="margin-left: 60px;  55px;">
                                        <input type="submit" class="btn btn-success" id="sub-score" onclick="teacherApproval(` + value.id + "," + context_id + `)" style="margin-left: 60px;  56px; margin-top: 10px">
                                    </div>
                                    <textarea disabled type="text" class="form-control"
                                              style="resize: none; color:#999; text-rendering: auto; height: 150px; margin-left: 95px; margin-top: -20px;  -webkit-fill-available">` + value.user_anser + `</textarea>
                                </div>
                                <div class="answer-box">
                                    <span class="right-line"></span>
                                    <span>答案解析:</span>
                                    <textarea disabled type="text" class="form-control"
                                              style="resize: none; color:#999; text-rendering: auto; height: 100px; margin-left: 95px; margin-top: -20px;  -webkit-fill-available">` + value.answers_text + `</textarea>
                                </div>`;
                            replys_str += ` </div>`
                        });
                        var html_str = "(" + String(replys_obj_length) + "道,共" + String(replys_points_possible) + "分)";
                        document.getElementById("Reply-points-possible").appendChild(document.createTextNode(html_str));
    
                    } else {
                        alert("题目类型错误!");
                        window.history.back(-1)
                    }
                });
                $("#Judge-problem").append(judges_str);
                $("#Single-problem").append(singles_str);
                $("#Multiple-problem").append(multiples_str);
                $("#Reply-problem").empty();
                $("#Reply-problem").append(replys_str);
            }
        });
    }
    
    function answers_analysis_html(value, correct_answer, wrong_answer, points_possible_count, score_count, context_id) {
        var html_answer_str = "";
        points_possible_count += value.points_possible;
        score_count += value.score;
        if (value.points_possible == value.score) {
            correct_answer += 1;     // 回答正确计数
    
            html_answer_str += `
                                    <div class="answer-box">
                                        <span class="right-line"></span>
                                        <span>正确答案:<b>` + value.answer + `</b></span>
                                    </div>
                                    <div class="answer-box">
                                        <span class="right-line-blue"></span>
                                        <span>考生答案:<b>` + value.user_anser + `</b></span>
                                    </div>
                                                                    
                                    <div class="answer-box">
                                        <span class="right-line"></span>
                                        <span>答案解析:</span>
                                        <div style="float: right; margin-right: 10px;  10%; height: 120px;">
                                            <span class="right-line-blue"></span>
                                            <span>评分:</span>
                                            <input type="text" class="form-control" placeholder="得分" id="teacher_approval"
                                                   style="margin-left: 60px;  55px;">
                                            <input type="submit" class="btn btn-success" id="sub-score" onclick="teacherApproval(` + value.id + "," + context_id + `)" style="margin-left: 60px;  56px; margin-top: 10px">
                                        </div>
                                        <textarea disabled type="text" class="form-control" style="resize: none; color:#999; text-rendering: auto; height: 100px; margin-left: 95px; margin-top: -20px;  -webkit-fill-available;">` + value.answers_text + `</textarea>
                                    </div>`;
        } else {
            wrong_answer += 1;       // 回答错误计数
    
            html_answer_str += `
                                    <div class="answer-box">
                                        <span class="right-line"></span>
                                        <span>正确答案:<b>` + value.answer + `</b></span>
                                    </div>
                                    <div class="answer-box">
                                        <span class="right-line-blue"></span>
                                        <span>考生答案:<b class="redcolor">` + value.user_anser + `</b></span>
                                    </div>
                                                                    
                                    <div class="answer-box">
                                        <span class="right-line"></span>
                                        <span>答案解析:</span>
                                        <div style="float: right; margin-right: 10px;  10%; height: 120px;">
                                            <span class="right-line-blue"></span>
                                            <span>评分:</span>
                                            <input type="text" class="form-control" placeholder="得分" id="teacher_approval"
                                                   style="margin-left: 60px;  55px;">
                                            <input type="submit" class="btn btn-success" id="sub-score" onclick="teacherApproval(` + value.id + "," + context_id + `)" style="margin-left: 60px;  56px; margin-top: 10px">
                                        </div>
                                        <textarea disabled type="text" class="form-control" style="resize: none; color:#999; text-rendering: auto; height: 100px; margin-left: 95px; margin-top: -20px;  -webkit-fill-available;">` + value.answers_text + `</textarea>
                                    </div>`;
        }
    
        return {
            "html_answer_str": html_answer_str,
            "correct_answer": correct_answer,
            "wrong_answer": wrong_answer,
            "points_possible_count": points_possible_count,
            "score_count": score_count
        }
    }
    
    function getTestSelf(context_id) {
        $.ajax({
            type: "GET",
            url: baseUrl + "/api/v1/mooc/tests",
            dataType: "json",
            data: {
                id: context_id
            },
            headers: {"Authorization": "Bearer " + Token},
            success: function (res) {
                if (res.data.list) {
                    document.getElementById("exam-title").appendChild(document.createTextNode(res.data.list[0].title));
                } else {
                    alert("未找到考试!")
                }
            }
        });
    }
    
    function teacherApproval(submission_id, context_id) {
        var approval_score = $("#teacher_approval").val();
    
        $.ajax({
            type: "POST",
            url: baseUrl + "/user/test/practice/teacher/review/" + context_id,
            dataType: "json",
            data: {
                submission_id: submission_id,
                score: approval_score
            },
            headers: {"Authorization": "Bearer " + Token},
            success: function (res) {
                console.log(res);
                console.log(typeof (res));
            }
        });
        // location.reload()
    }
    
    function teacherCorrectionCompleted(user_id, context_id) {
    
        $.ajax({
            type: "POST",
            url: baseUrl + "/exam/mooc/submission/versions/add/or/update",
            dataType: "json",
            data: {
                user_id: user_id,
                context_id: context_id,
            },
            headers: {"Authorization": "Bearer " + Token},
            success: function (res) {
                console.log(res);
                console.log(typeof (res));
            }
        });
        // location.reload()
    }
    
    //页面加载完毕后触发
    window.onload = function () {
        var obtn = document.getElementById('toTop');
        var clientHeight = document.documentElement.clientHeight;
        var timer = null;
        var isTop = true;
    
        //滚动条滚动时触发
        window.onscroll = function () {
            var osTop = document.documentElement.scrollTop || document.body.scrollTop;
            if (osTop >= clientHeight) {
                obtn.style.display = 'block';
            } else {
                obtn.style.display = 'none';
            }
            if (!isTop) {
                clearInterval(timer);
            }
            isTop = false;
        }
    
        obtn.onclick = function () {
            //设置定时器
            timer = setInterval(function () {
                //获取滚动条距离顶部的高度
                var osTop = document.documentElement.scrollTop || document.body.scrollTop;
                var ispeed = Math.floor(-osTop / 6);
                document.documentElement.scrollTop = document.body.scrollTop = osTop + ispeed;
    
                isTop = true;
                console.log(osTop - ispeed);
                if (osTop == 0) {
                    clearInterval(timer);
                }
            }, 30);
        };
    };
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  • 原文地址:https://www.cnblogs.com/rixian/p/12720200.html
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