diff --git a/web.html b/web.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>随机点名系统</title>
+    <link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/ionicons/4.5.6/css/ionicons.min.css'>
+    <link rel="stylesheet" href="styles.css">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Long+Cang&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css2?family=Zhi+Mang+Xing&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&display=swap" rel="stylesheet">
+</head>
+<body>
+    <h1>随机点名系统</h1>
+    <div id="message" style="display:none; position:fixed; top:20px; left:50%; transform:translateX(-50%); background-color:rgba(0, 0, 0, 0.5); color:white; padding:10px; border-radius:5px; white-space:nowrap;">  
+    </div>
+    <div class="container">    
+        <div class="file-upload">  
+
+            <label class="file-label" for="fileInput" style="cursor: pointer;">
+                <img src="file-icon.svg" alt="选择文件" style="width: 40px; height: 40px;" />
+                <input type="file" id="fileInput" style="display: none;" onchange="updateFileName()" /> 
+            </label>
+
+            <span id="fileName">未选择文件</span>  
+
+            <button id="uploadButton" onclick="uploadFile()"style="background: none; border: none; padding: 0; cursor: pointer;">
+                <img src="upload-icon.svg" alt="导入" style="width: 40px; height: 40px;" />
+            </button>  
+        </div>  
+    
+        <div class="button-row">  
+            <button id="drawButton" onclick="startDraw()" disabled>开始点名</button>  
+        </div>  
+
+        <div class="button-row">
+        <button id="onClass" onclick="onClass()" style="width:20% ;">到场</button>  
+        </div>
+    
+        <div class="button-row">  
+            <button id="correctButton" onclick="repeatCorrectly()" disabled>准确重复问题</button>
+            <button id="incorrectButton" onclick="repeatIncorrectly()" disabled>重复不准确</button>  
+        </div>  
+        
+        <div class="rating">
+            <input type="radio" name="rating" id="5" value="5" />
+            <label for="5" data-value="5"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">5</span></label>
+            <input type="radio" name="rating" id="4" value="4" />
+            <label for="4" data-value="4"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">4</span></label>
+            <input type="radio" name="rating" id="3" value="3" />
+            <label for="3" data-value="3"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">3</span></label>
+            <input type="radio" name="rating" id="2" value="2" />
+            <label for="2" data-value="2"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">2</span></label>
+            <input type="radio" name="rating" id="1" value="1" />
+            <label for="1" data-value="1"><i class="icon ion-md-star-outline"></i><span class="star-number hidden">1</span></label>
+        </div>
+
+    
+
+        <!--<input type="text" id="manualPoints" placeholder="手动加减积分 (范围 0.5 到 3)" />  -->
+        
+        <div class="button-row">  
+            <!--<button id="manualButton" onclick="updatePoints()" disabled>更新积分</button>  -->
+            <button id="resetButton" onclick="resetAllPoints()">重置所有积分</button>  
+        </div>  
+        
+        <div class="view-student-row">  
+            <button onclick="viewStudentList()">查看学生名单</button>  
+        </div>  
+    </div> 
+
+    <div id="scrollingNames"></div>  
+    <div id="selectedStudent"></div>
+    <canvas id="particleCanvas"></canvas>
+
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.17.1/xlsx.full.min.js"></script>
+    <script>
+        let students = JSON.parse(localStorage.getItem('students')) || [];
+        let selectedStudent = null;
+        let intervalId;
+        let lock = false;//自动加分锁
+        let lock1 = false;//手动加分锁
+        let onClassAdded = false;
+        let autoPointsAdded = false;
+        let manualPointsUsed = false;
+        let studentDrawn = false;
+        let starLock = false;
+
+        const stars = document.querySelectorAll('.rating label');
+
+        stars.forEach(star => {
+            star.addEventListener('mouseenter', () => {
+                const number = star.querySelector('.star-number');
+                number.classList.remove('hidden');
+            });
+    
+            star.addEventListener('mouseleave', () => {
+                const number = star.querySelector('.star-number');
+                number.classList.add('hidden');
+            });
+        });
+
+        const particleCanvas = document.getElementById('particleCanvas');
+        const particleCtx = particleCanvas.getContext('2d');
+        particleCanvas.width = window.innerWidth;
+        particleCanvas.height = window.innerHeight;
+
+        let particles = [];
+
+        function createParticlesFromText(a, b) {
+            // 清空画布
+            particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height);
+
+            // 设置字体
+            particleCtx.font = '150px "Long Cang"';
+            particleCtx.fillStyle = '#003366';
+
+            // 绘制第一行文字
+            const x1 = particleCanvas.width / 2 - particleCtx.measureText(selectedStudent.name).width / 2;
+            const y1 = particleCanvas.height / 2 - 50;  // 向上移动50像素
+            particleCtx.fillText(selectedStudent.name, x1, y1);
+
+            // 绘制第二行文字
+            const x2 = particleCanvas.width / 2 - particleCtx.measureText(selectedStudent.id).width / 2;
+            const y2 = particleCanvas.height / 2 + 70;  // 向下移动70像素
+            particleCtx.fillText(selectedStudent.id, x2, y2);
+
+            // 获取整个画布的像素数据
+            const imageData = particleCtx.getImageData(0, 0, particleCanvas.width, particleCanvas.height);
+
+            // 清空粒子数组
+            particles = [];
+
+            // 创建粒子
+            for (let y = 0; y < imageData.height; y += 2) {
+                for (let x = 0; x < imageData.width; x += 2) {
+                    const index = (y * imageData.width + x) * 4;
+                    const alpha = imageData.data[index + 3];
+                    if (alpha > 128) {  // 只选择不透明的像素
+                        let particle = new Particle(Math.random() * particleCanvas.width, Math.random() * particleCanvas.height);
+                        particle.targetX = x;
+                        particle.targetY = y;
+                        particles.push(particle);
+                    }
+                }
+            }
+
+            // 启动粒子动画
+            animateParticles();
+        }
+
+        function Particle(x, y) {
+            this.x = x;
+            this.y = y;
+            this.size = 1;
+            this.baseX = this.x;
+            this.baseY = this.y;
+            this.density = Math.random() * 30 + 1;
+        }
+
+        Particle.prototype.draw = function () {
+            particleCtx.fillStyle = 'black';
+            particleCtx.beginPath();
+            particleCtx.arc(this.x, this.y, this.size, 0, Math.PI * 2);  // 绘制粒子
+            particleCtx.closePath();
+            particleCtx.fill();
+        };
+
+        Particle.prototype.update = function () {
+            let dx = this.targetX - this.x;
+            let dy = this.targetY - this.y;
+            let distance = Math.sqrt(dx * dx + dy * dy);
+            let speed = distance / 20;  // 移动速度，离目标越远速度越快
+            this.x += dx / distance * speed;
+            this.y += dy / distance * speed;
+
+            // 减少抖动，当粒子非常接近目标位置时停止移动
+            if (distance < 1) {
+                this.x = this.targetX;
+                this.y = this.targetY;
+            }
+        };
+
+        function animateParticles() {
+            particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height);  // 清除上一帧的粒子
+
+            particles.forEach(particle => {
+                particle.update();  // 更新每个粒子的状态
+                particle.draw();    // 绘制每个粒子
+            });
+
+            requestAnimationFrame(animateParticles);  // 循环动画
+        }
+
+        function showMessage(text) {  
+            const messageDiv = document.getElementById("message");  
+            messageDiv.textContent = text;  
+            messageDiv.style.display = "block"; // 显示消息  
+
+            setTimeout(() => {  
+                messageDiv.style.display = "none"; // 1秒后隐藏消息  
+            }, 1000);  
+        } 
+
+        window.onload = function() {
+            const storedStudent = localStorage.getItem('selectedStudent');//获取selectedStudent
+            if (storedStudent) {
+                selectedStudent = JSON.parse(storedStudent);
+                document.getElementById('selectedStudent').innerText = `${selectedStudent.name} (学号: ${selectedStudent.id})`;
+                autoPointsAdded = localStorage.getItem('autoPointsAdded') === 'true';
+                manualPointsUsed = localStorage.getItem('manualPointsUsed') === 'true';
+                starLock = localStorage.getItem('starLock') === 'true';
+                onClassAdded = localStorage.getItem('onClassAdded') === 'true';
+            }
+            toggleButtons();//按键锁
+        };
+    
+        function uploadFile() {  
+            const input = document.getElementById('fileInput');  
+            const file = input.files[0];  
+            if (!file) {  
+                showMessage("请选择一个文件！");  
+                return;  
+            }  
+
+            const reader = new FileReader();  
+            reader.onload = function(e) {  
+                const data = new Uint8Array(e.target.result);  
+                const workbook = XLSX.read(data, { type: 'array' });  
+                const firstSheet = workbook.Sheets[workbook.SheetNames[0]];  
+
+                // 读取所有行（包括空行）  
+                let allStudents = XLSX.utils.sheet_to_json(firstSheet, { header: 1 });  
+
+                // 如果没有数据，则提示用户  
+                if (allStudents.length < 2) {  
+                    showMessage("工作表中没有有效数据！");  
+                    return;  
+                }  
+
+                // 去掉表头  
+                allStudents = allStudents.slice(1); 
+
+                // 过滤有效行，确保每行的有效性  
+                students = allStudents  
+                    .filter(row => row[0] !== undefined && row[0] !== null && row[0] !== '') // 确保 ID 不为空  
+                    .map(row => ({  
+                        id: row[0],  
+                        name: row[1],   // 假设第二列为名字  
+                    points: 0       // 默认分数为 0  
+                    }));  
+
+                // 如果没有有效的学生数据，则提示  
+                if (students.length === 0) {  
+                    showMessage("工作表中没有有效学生数据！");  
+                    return;  
+                }  
+
+                localStorage.setItem('students', JSON.stringify(students));  
+                showMessage("学生名单导入成功！");  
+                toggleButtons();  
+            };  
+            reader.readAsArrayBuffer(file);  
+        }
+
+        function updateFileName() {  
+            const input = document.getElementById('fileInput');  
+            const fileName = document.getElementById('fileName');  
+            if (input.files.length > 0) {  
+                fileName.innerText = input.files[0].name; // 显示选择的文件名  
+            } else {  
+                fileName.innerText = '未选择文件'; // 显示未选择文件的提示  
+            }  
+        } 
+
+        function toggleButtons() {
+            const buttons = ['drawButton', 'correctButton', 'incorrectButton', 'manualButton'];
+            const enable = students.length > 0;
+            buttons.forEach(buttonId => {
+                document.getElementById(buttonId).disabled = !enable;
+            });
+        }
+
+        function viewStudentList() {
+            window.location.href = 'studentList.html';
+        }
+
+        function startDraw() {
+            if (students.length === 0) {
+                showMessage("请先导入学生名单！");
+                return;
+            }
+            // 隐藏页面元素
+            document.querySelector('.container').classList.add('hidden');
+            // 隐藏“开始点名”按钮
+            //document.getElementById('drawButton').style.display = 'none';
+    
+            lock = false;
+            lock1 = false;
+            onClassAdded = false;
+            autoPointsAdded = false;
+            manualPointsUsed = false;
+            starLock = false;
+
+
+            const totalPoints = students.reduce((sum, student) => sum + (student.points > 10 ? 1 / student.points : 10 - student.points), 0);
+            const randomValue = Math.random() * totalPoints;
+            let cumulativePoints = 0;
+
+            for (const student of students) {
+                cumulativePoints += Math.max(1, 10 - student.points);
+                if (randomValue < cumulativePoints) {
+                    selectedStudent = student;
+                    break;
+                }
+            }
+
+            setTimeout(scrollStudents, 350);
+        }
+
+        function onClass() {
+            if(!onClassAdded && selectedStudent) {
+                selectedStudent.points += 1;
+                synPoints();
+                onClassAdded = true;
+                updateLocalStorage();
+                showMessage(`${selectedStudent.name}到场，加分 1。`); 
+            } else if (!selectedStudent) {
+                showMessage("请先抽取一位学生");
+            } else {
+                showMessage("到场已加分");
+            }
+        }
+
+        document.addEventListener('click', async function(event) {  
+            const drawButton = document.getElementById('drawButton');  
+            const scrollingNamesDiv = document.getElementById('scrollingNames');  
+            const selectedStudentDiv = document.getElementById('selectedStudent'); 
+
+            if(!clickEnabled){
+                return;
+            }
+
+            if (!drawButton.contains(event.target) &&   
+                !scrollingNamesDiv.contains(event.target) &&   
+                !selectedStudentDiv.contains(event.target)) {  
+        
+                // 清空显示的被点到学生信息  
+                scrollingNamesDiv.innerHTML = '';  
+
+                particles = [];  
+                particleCtx.clearRect(0, 0, particleCanvas.width, particleCanvas.height);  
+ 
+                // 恢复页面元素  
+                document.querySelector('.container').classList.remove('hidden');  
+                selectedStudentDiv.style.display = 'block'; // 显示  
+            }  
+        });
+
+        function synPoints() {
+            // 更新 students 数组中的相应学生积分  
+            const studentIndex = students.findIndex(s => s.id === selectedStudent.id);  
+            if (studentIndex !== -1) {  
+                students[studentIndex].points = selectedStudent.points;  // 确保 students 数组中的积分也更新  
+            }
+        }
+
+        function repeatCorrectly() {
+            if (!lock && selectedStudent && !autoPointsAdded) {
+                selectedStudent.points += 0.5;
+                synPoints();
+                autoPointsAdded = true;
+                lock = true;
+                updateLocalStorage();
+                showMessage(`已为 ${selectedStudent.name}加分 0.5。`);  
+            } else if (!selectedStudent) {
+                showMessage("请先抽取一位学生");
+            } else {
+                showMessage("已为该学生加过分");
+            }
+        }
+
+
+        function repeatIncorrectly() {
+            if (!lock && selectedStudent && !autoPointsAdded) {
+                selectedStudent.points -= 1;
+                synPoints();
+                autoPointsAdded = true;
+                lock = true;
+                updateLocalStorage();
+                showMessage(`已为 ${selectedStudent.name} 扣分 1。`);
+            } else if (!selectedStudent) {
+                showMessage("请先抽取一位学生");
+            } else {
+                showMessage("已为该学生加过分");
+            }
+        }
+
+        let clickEnabled = true; // 用于跟踪点击是否被允许  
+
+        function scrollStudents() {  
+            document.getElementById('selectedStudent').innerText = '';  
+            const scrollingNamesDiv = document.getElementById('scrollingNames');  
+            scrollingNamesDiv.innerHTML = '';  
+            let index = 0;  
+
+            clickEnabled = false; // 禁用点击  
+
+            return new Promise((resolve) => {  
+                intervalId = setInterval(() => {  
+                    scrollingNamesDiv.innerText = students[index].name;  
+                    index = (index + 1) % students.length;  
+                }, 100);  
+
+                setTimeout(() => {  
+                clearInterval(intervalId);  
+                    scrollingNamesDiv.innerHTML = '';  
+                    if (selectedStudent) {  
+                        document.getElementById('selectedStudent').innerText = `${selectedStudent.name} (学号: ${selectedStudent.id})`;  
+                        document.getElementById('selectedStudent').style.display = 'none'; // 隐藏  
+                        createParticlesFromText(`${selectedStudent.name} (学号:${selectedStudent.id})`);  
+                        updateLocalStorage();  
+                    }  
+                    resolve(); // 完成滚动时解析Promise  
+                    clickEnabled = true; // 恢复点击  
+                }, 3000);  
+            });  
+        }  
+
+        function updateLocalStorage() {
+            localStorage.setItem('selectedStudent', JSON.stringify(selectedStudent));
+            localStorage.setItem('students', JSON.stringify(students));
+            localStorage.setItem('autoPointsAdded', autoPointsAdded);
+            localStorage.setItem('manualPointsUsed', manualPointsUsed);
+            localStorage.setItem('starLock',starLock);
+            localStorage.setItem('onClassAdded',onClassAdded);
+        }
+
+        // 初始化星级点击事件监听器
+        document.querySelectorAll('.rating input').forEach(star => {
+            star.addEventListener('change', function() {
+                if (!starLock) {  // 检查星星是否已经被点击过
+                    updatePoints(this.value);
+                } else {
+                    showMessage("每次点名只能点击一次星星进行加分。");
+                }
+            });
+        });
+
+        // 根据选中的星级为学生加分
+        function updatePoints(points) {
+            points = parseInt(points); // 将点击的星星值转换为整数
+            if (selectedStudent) {
+                if (!starLock) {  // 检查星星是否已经被点击过
+                    selectedStudent.points += points;  // 根据星星值加分
+                    synPoints();
+                    showMessage(`已为 ${selectedStudent.name} 加分 ${points}。`);
+                    starLock = true;  // 点击后锁定星星
+                    updateLocalStorage();
+                } else {
+                    showMessage("每次点名只能点击一次星星进行加分。");
+                }
+            } else {
+                showMessage("请先点名一个学生。");
+            }
+        }
+
+        // 禁用所有星星选择
+        function disableStars() {
+            document.querySelectorAll('.rating input').forEach(star => {
+                star.disabled = true;
+            });
+        }
+
+        // 启用所有星星选择
+        function enableStars() {
+            document.querySelectorAll('.rating input').forEach(star => {
+                star.disabled = false;
+            });
+        }
+
+
+        function resetAllPoints() {
+            students.forEach(student => student.points = 0);
+            localStorage.setItem('students', JSON.stringify(students));
+            localStorage.removeItem('selectedStudent');
+            selectedStudent = null;
+            document.getElementById('selectedStudent').innerText = '';
+            showMessage("所有积分已重置！");
+        }
+    </script>
+</body>
+</html>
\ No newline at end of file
