diff --git "a/\347\216\213\351\224\246\345\206\233/express.zip" "b/\347\216\213\351\224\246\345\206\233/express.zip"
new file mode 100644
index 0000000000000000000000000000000000000000..26c173a297826a1f503bd47cb7b109a3b5a7f9b1
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diff --git "a/\347\216\213\351\224\246\345\206\233/stu_tb/config.js" "b/\347\216\213\351\224\246\345\206\233/stu_tb/config.js"
new file mode 100644
index 0000000000000000000000000000000000000000..e62baadcb0c110ec4074067ce2fa6700e620337d
--- /dev/null
+++ "b/\347\216\213\351\224\246\345\206\233/stu_tb/config.js"
@@ -0,0 +1,7 @@
+module.exports={
+    host:"localhost",
+    user:"root",
+    password:"wjj1929707670",
+    database:"student",
+    port:3306
+}
\ No newline at end of file
diff --git "a/\347\216\213\351\224\246\345\206\233/stu_tb/student.js" "b/\347\216\213\351\224\246\345\206\233/stu_tb/student.js"
new file mode 100644
index 0000000000000000000000000000000000000000..a159746573cfd5182a37142f5ab0b260a4a11795
--- /dev/null
+++ "b/\347\216\213\351\224\246\345\206\233/stu_tb/student.js"
@@ -0,0 +1,68 @@
+//作业：创建一个学生表,里面有班级字段,里面最好有自己班上同学姓名,其它班级的姓名随机写,有个字段存储游戏的分值,先实现随机的数值写入,查询出各班级前三名的学生
+// tips：先要用npm 下载 sequelize和mysql2
+let con=require("./config");
+const { Sequelize, Model, DataTypes } = require('sequelize');
+const sequelize = new Sequelize(con.database, con.user, con.password, {
+    //申明下使用的数据库
+    dialect: 'mysql',
+    host:con.host,//如果变量的key和value的变量一致，可以简写
+    port: con.port,
+    logging: true,//日志
+    timezone: '+08:00',//东八区
+    define: {
+        timestamps: false,//默认会开启创建时间和修改时间
+        underscored: true,//会把对象的属性名,由小驼峰转成下划线
+        deletedAt:false,
+    }
+});
+
+class Student extends Model { }
+
+Student.init({
+    // attributes
+    stu_id: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        primaryKey: true,
+        autoIncrement:true,
+    },
+    stu_class: {
+        type: DataTypes.STRING
+        // allowNull defaults to true
+    },
+    stu_name: {
+        type: DataTypes.STRING
+    },
+    score: {
+        type: DataTypes.BIGINT
+    },
+    
+}, {
+    sequelize,
+    modelName: 'stu_game',
+    // options
+    tableName: 'stu_game',//要关联表
+});
+
+
+//update
+//  async function update(){
+//     await Student.update({
+//         score: 45
+//     },{
+//         where:{score: null}
+//     })
+//  } 
+//  update()
+
+  function getscoremax3(){
+    let all= Student.findAll({
+    order: [['score','DESC']],
+    limit:3
+
+ })
+   all.then((all)=>{
+    console.log(JSON.stringify(all,null,4) );
+   })
+}
+getscoremax3()
diff --git "a/\347\216\213\351\224\246\345\206\233/stu_tb/student.sql" "b/\347\216\213\351\224\246\345\206\233/stu_tb/student.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..6342c8769fa84fc03fff2f8ae8dd6f2a76001a70
--- /dev/null
+++ "b/\347\216\213\351\224\246\345\206\233/stu_tb/student.sql"
@@ -0,0 +1,39 @@
+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : Student
+ Source Server Type    : MySQL
+ Source Server Version : 50737
+ Source Host           : localhost:3306
+ Source Schema         : student
+
+ Target Server Type    : MySQL
+ Target Server Version : 50737
+ File Encoding         : 65001
+
+ Date: 27/02/2023 17:40:41
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for stu_game
+-- ----------------------------
+DROP TABLE IF EXISTS `stu_game`;
+CREATE TABLE `stu_game`  (
+  `stu_id` int(11) NOT NULL AUTO_INCREMENT,
+  `stu_class` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
+  `stu_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
+  `score` bigint(20) UNSIGNED NULL DEFAULT NULL,
+  PRIMARY KEY (`stu_id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 7 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of stu_game
+-- ----------------------------
+INSERT INTO `stu_game` VALUES (1, '7班', 'wjj', NULL);
+INSERT INTO `stu_game` VALUES (2, '7班', 'zm', NULL);
+INSERT INTO `stu_game` VALUES (3, '2班', 'wwl', NULL);
+
+SET FOREIGN_KEY_CHECKS = 1;