diff --git "a/\346\235\250\351\221\253\344\273\252/20230221\344\275\234\344\270\232/homework.js" "b/\346\235\250\351\221\253\344\273\252/20230221\344\275\234\344\270\232/homework.js"
new file mode 100644
index 0000000000000000000000000000000000000000..32c339b8e7f717c82309a9a4401c60ad29aa9b66
--- /dev/null
+++ "b/\346\235\250\351\221\253\344\273\252/20230221\344\275\234\344\270\232/homework.js"
@@ -0,0 +1,43 @@
+var mysql      = require('mysql');
+var connection = mysql.createConnection({
+  host     : '127.0.0.1',
+  user     : 'root',
+  password : 'root',
+  database : 'homework'
+});
+ 
+connection.connect(function(err) {
+  if (err) {
+    console.error('error connecting: ' + err.stack);
+    return;
+  }
+ 
+  console.log('connected as id ' + connection.threadId);
+});
+
+connection.query(`INSERT into user(name,old,sex,create_time,update_time) value('张三','25','男','2023-02-21 16:45:08','2023-02-21 16:45:12');`,"测试",(error, results) =>{
+    if (error) throw error;
+    console.log(results);
+});
+
+connection.query(`delete from user where name= '张三'`,(error, results) =>{
+    if (error) throw error;
+    console.log(results);
+});
+
+
+connection.query('SELECT * from user', function (error, results, fields) {
+    if (error) throw error;
+    console.log("查询结果是");
+    console.log(results);
+});
+
+
+
+connection.query(`update user set update_time = "2023-02-21 17:06:15" where old = 25`,(error, results) =>{
+    if (error) throw error;
+    console.log(results);
+});
+
+
+connection.end();