diff --git "a/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/mysql.js" "b/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/mysql.js"
new file mode 100644
index 0000000000000000000000000000000000000000..11fcb22d1d50391f730df3b733c9affd61eea1c7
--- /dev/null
+++ "b/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/mysql.js"
@@ -0,0 +1,78 @@
+//引入模块
+const mysql = require("mysql");
+
+//配置数据库
+
+const db=mysql.createConnection({
+    host:'localhost',
+    user:'root',
+    password:'123456',
+    database:'study'
+})
+
+//封装数据库操作
+function query(sql,callback){
+    db.connect();
+    //[user,user.id]
+
+    db.query(sql,params, function(err,results,fields){
+        if(err){
+            console.log(err.message);
+            return;
+        }
+        callback && callback(results, fields);
+        //results作为数据操作后的结果，fields作为数据库连接的一些字段
+
+    })
+    //释放资源
+    db.end(function(err){
+        if(err){
+            console.log('关闭失败');
+        }
+       
+    });
+}
+
+//查询
+
+db.query('select * from user_table', [],function(result,fields){
+    console.log('查询结果：');
+    console.log(result);
+});
+
+// let sql="SELECT * FROM user_table where id=?";
+// let SqlParams ={
+//     id:5
+// };
+// db.query(sql,SqlParams,function(result,fields){
+//     console.log('查询结果：');
+//     console.log(result);
+// })
+
+//添加实例
+//INSERT INTO user_table SET ? 快捷方式
+//INSERT INTO user_table(username,password) VALUES(?,?)
+
+let  addSql = 'INSERT INTO user_table SET ?';
+let  addSqlParams ={
+    username:'小海豚',
+    password:'66666'
+};
+db.query(addSql,addSqlParams,function(result,fields){
+    console.log('添加成功')
+})
+
+//更新实例
+
+let  upSql = 'update user_table set username=?,password=? where id=?';
+let  upSqlParams =['鲨鱼', '555555',3];
+db.query(upSql,upSqlParams,function(result,fields){
+    console.log('更新成功')
+})
+
+//删除实例
+let  delSql = 'delete from user_table where id=?';
+
+db.query(delSql,4,function(result,fields){
+    console.log('删除成功')
+})
\ No newline at end of file
diff --git "a/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/study.sql" "b/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/study.sql"
new file mode 100644
index 0000000000000000000000000000000000000000..ee8f4edf4fa71adb1eec1d64646f5b9e9fd830e4
--- /dev/null
+++ "b/\346\236\227\345\271\274\350\212\263/2022.3.8--mysql/study.sql"
@@ -0,0 +1,12 @@
+DROP TABLE IF EXISTS `user_table`;
+CREATE TABLE `user_table` (
+  `ID` int(11) NOT NULL AUTO_INCREMENT,
+  `username` varchar(32) NOT NULL,
+  `password` varchar(32) NOT NULL,
+  PRIMARY KEY (`ID`)
+) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
+
+INSERT INTO user_table(username,password) VALUES('admin','123456');
+INSERT INTO user_table(username,password) VALUES('root','123456');
+INSERT INTO user_table(username,password) VALUES('redmi','133478');
+INSERT INTO user_table(username,password) VALUES('mysql','666666');
\ No newline at end of file