diff --git a/classManager.js b/classManager.js
index c331a51..fa6648e 100644
--- a/classManager.js
+++ b/classManager.js
@@ -4,43 +4,60 @@ const xlsx = require('xlsx');
 const pool = require('../db');
 
 const classManager = {
-    addClass: (req, res) => {
-        const filePath = req.file.path;
-
-        // 读取并解析Excel文件
-        const workbook = xlsx.readFile(filePath);
-        const sheetName = workbook.SheetNames[0];
-        const worksheet = workbook.Sheets[sheetName];
-
-        const students = xlsx.utils.sheet_to_json(worksheet);
-
-        // 定义所需的字段
-        const requiredFields = [ 'student_id', 'student_name'];
-        let hasError = false;
-
-        students.forEach(student => {
-            // 数据验证
-            const missingFields = requiredFields.filter(field =>!(field in student));
-            if (missingFields.length > 0) {
-                console.error(`Student data is missing fields: ${missingFields.join(', ')}`);
-                hasError = true;
-                return;
-            }
+    addClass: async (req, res) => {
+        // 创建students表的SQL语句
+        const createTableQuery = `
+        CREATE TABLE IF NOT EXISTS students (
+            student_id INT AUTO_INCREMENT PRIMARY KEY,
+            student_name VARCHAR(255) NOT NULL,
+            score DECIMAL(5, 2),
+            call_count INT DEFAULT 0
+        );
+        `;
+        try {
+            // 先创建表
+            await pool.query(createTableQuery);
+
+            const filePath = req.file.path;
+
+            // 读取并解析Excel文件
+            const workbook = xlsx.readFile(filePath);
+            const sheetName = workbook.SheetNames[0];
+            const worksheet = workbook.Sheets[sheetName];
+
+            const students = xlsx.utils.sheet_to_json(worksheet);
 
-            // 将学生数据插入数据库
-            const query = 'INSERT INTO students (student_id, student_name, score, call_count) VALUES (?,?, 0, 0)';
-            pool.query(query, [student.student_id, student.student_name], (error) => {
-                if (error) {
-                    console.error(`Error inserting student: ${student.name}`, error);
+            // 定义所需的字段
+            const requiredFields = ['student_id','student_name'];
+            let hasError = false;
+
+            students.forEach(student => {
+                // 数据验证
+                const missingFields = requiredFields.filter(field =>!(field in student));
+                if (missingFields.length > 0) {
+                    console.error(`Student data is missing fields: ${missingFields.join(', ')}`);
                     hasError = true;
+                    return;
                 }
+
+                // 将学生数据插入数据库
+                const query = 'INSERT INTO students (student_id, student_name, score, call_count) VALUES (?,?, 0, 0)';
+                pool.query(query, [student.student_id, student.student_name], (error) => {
+                    if (error) {
+                        console.error(`Error inserting student: ${student.name}`, error);
+                        hasError = true;
+                    }
+                });
             });
-        });
 
-        if (hasError) {
-            res.status(500).json({ message: 'Error adding class. Some students were not added successfully.' });
-        } else {
-            res.status(200).json({ message: 'Class added successfully!' });
+            if (hasError) {
+                res.status(500).json({ message: 'Error adding class. Some students were not added successfully.' });
+            } else {
+                res.status(200).json({ message: 'Class added successfully!' });
+            }
+        } catch (err) {
+            console.error('Error creating students table:', err);
+            res.status(500).json({ message: 'Error creating table during class addition.' });
         }
     }
 };