Node.js操作数据库：

var mysql  = require('mysql');var connection = mysql.createConnection({    host     : 'localhost',    user     : 'root',    password : '',    port: '3306',    database: 'test'});connection.connect();var  sql = 'SELECT * FROM user';//查connection.query(sql,function (err, result) {    if(err){        console.log('[SELECT ERROR] - ',err.message);        return;    }    console.log('--------------------------SELECT----------------------------');    console.log(result);    console.log('------------------------------------------------------------\n\n');});connection.end();