node-mysql连接数据库

const mysql=require('mysql')
const con=mysql.createConnection({
    host:'localhost',
    user:'root',
    password:'******',
    port:'',
    database:'myblog'
})

con.connect()

const sql='select*from users;'
con.query(sql,(err,result)=>{
    if(err){
        console.error(err)
        return
    }
    console.log(result)
})
con.end()