面向对象与面向过程的相互转换

public static function get($data=[]){//默认是空数组
if(count($data)==0){
    $this->getAll();
}else{
   $this->getSelect($data);
}
}


public function getAll(){
$sql="select * form".$this->tables；
$this->dao->getAll($sql);}

public  function getSelect($data){
   
    $column=implode(‘,‘$data);
    $sql=‘select‘.$column.‘form‘.$this->table;
    $this->dao->getSelect($sql);
}

 
//首先转换get方法
function  get($data=[]){//默认是空数组
if(count($data)==0){
getAll();
}elsel{
getSelect()
}
}
//接下来转换getAll方法
function getAll(){
 $sql="select * form".TABLE_NAME;

 mysql_exec($sql);

}

//接下来转换getSelect()方法

function getSelect($data){

 $column=implode(‘,‘$data);

 $sql=‘select‘.$column.‘form‘.TABLE_NAME;

mysql_exec($sql)

}
//封装mysql的执行的方法
function mysql_exec($sql){

 $con = mysql_connect("localhost","root","root");

 mysql_query($sql,$con);

}