Nodejs+mysql Getting Started instance (change)

Connection database var mysql = require (' mysql '); var connection = Mysql.createconnection ({    host: ' bdm253137448.my3w.com ',// Database address user    : ' bdm253137448 ',   //database user name    password: ' muchengfeng123 ',//Database admin password    : ' bdm253137448 _db ',//database name    insecureauth:true  }), Connection.connect (function (err) {  if (err) {    console.error (' Error connecting: ' + err.stack);    return;  }   Console.log (' Connected as ID ' + Connection.threadid);}); var usermodsql = ' UPDATE userinfo SET username =?, pwd =? WHERE id = 1 '; var usermodsql_params = [' Hello world ', 99];//change Upconnection.query (Usermodsql,usermodsql_params,function ( Err, result) {   if (err) {         console.log (' [UPDATE ERROR]-', err.message);         return;   }         Console.log ('----------UPDATE-------------');  Console.log (' UPDATE affectedrows ', result.affectedrows);  Console.log (' ****************************** ');}); /close connection connection.end ();

　　

Nodejs+mysql Getting Started instance (change)