var?mysql?=?require('./../node_modules/mysql');//1.?加載mysql模塊 exports.checkRegistered=function(req,resp){ ????var?myConnect?=?mysql.createConnection({//2.創建數據的鏈接對象； ????????host:"localhost", ????????user:"root", ????????password:"1234", ????????port:'3306', ????????database:"juewei" ????}) ????myConnect.connect();//3.?打開鏈接； ????var?registeredUsername=req.body.username;?//獲取用戶輸入的值 ????var?registeredPassword=req.body.password; ????var?registeredPassword2=req.body.password2; ????var?registeredArray=new?Array();//將獲得的用戶輸入值用變量存起來 ????registeredArray.push(registeredUsername); ????registeredArray.push(registeredPassword); ????registeredArray.push(registeredPassword2); ????//console.log(registeredArray[0]);能夠正確輸出 ????//console.log(registeredArray[1]);能夠正確輸出 ????//console.log(registeredArray[2]);能夠正確輸出 ????//console.log(registeredArray.length);能夠正確輸出 ????var?registeredMysql="insert?into?t_juewei(j_username,j_password)values(?,?)"; ????myConnect.query(registeredMysql,registeredArray,function(err,data){ ?????????console.log(data);//這里輸出顯示undefined?。。。。。。。。。?！為什么?。。。。。。。。。。。?！ ?????}console.log(data);這里輸出顯示undefined?。。。。。。。。。?！為什么?。。。。。。。。。。。?！