问如何使用promises在Node中进行多个mysql查询

EN

dbPool.queryOPromise(query)                                                                                     
.then(function(result){                                                                                         
    console.log(result);                                                                                          
    var query = {                                                                                                 
        sql:"INSERT INTO newusers (newuserid, ipaddress, email) VALUES (?,?,?)",                                    
        values: [newuserid, ipAddress, email]                                                                       
    };                                                                                                            
    dbPool.queryOPromise(query)                                                                                   
    .then(function(value){                                                                                        
        console.log(value);                                                                                         
        if(value.code==200) {                                                                                       
            res.status(200).json({code:200, status:"New User Created"});                                              
        } else {                                                                                                    
            res.status(400).json({code:value.code, status:"Error creating new user: ".value.status});
        }                                                                                                           
    })       
})