ADD file via upload

ranking.js

@@ -0,0 +1,14 @@
+const pool = require('../db');
+
+async function getRanking(req, res) {
+    try {
+        const connection = await pool.getConnection();
+        const [ranking] = await connection.query('SELECT student_name, student_id, score, call_count FROM students ORDER BY score DESC');
+        connection.release();
+        res.send({ ranking });
+    } catch (error) {
+        res.status(500).send({ error: '无法获取排名' });
+    }
+}
+
+module.exports = { getRanking };