object oriented programming paradigm

) >0) { return1; }Else{ return2; } } } //executes the DQL statement and returns the value functionEXCUTE_DQL ($sql){ $res=Mysqli_query($this->conn,$sql) or die("Shibai"); //Var_dump ($res); return $res; } } testsql.php PHPrequire"Sqltool.class.php"; //$sql = "INSERT INTO User1 (name,password,email,age) VALUES (' Hhhhhh ', MD5 (' 123 '), ' [email protected] ',"); $sql= "Delete from User1 w

__init__ (self, name, gender, score): super (Student, self). __init__ (name, gender) = ScoreBe sure to super(Student, self).__init__(name, gender) initialize the parent class, otherwise the inherited from Person Student will not name 和 gender . The function super(Student, self) returns the parent class that is inherited by the current class, that is Person , then calls the __init__() method, notes that the self parameter is passed in super() , implicitly passes in, __init__() and

This article mainly introduces a deep understanding of the JavaScript series (17): An Introduction to object-oriented programming, this article describes the introduction, paradigm and ideas, class-based features and prototype-based, static-based, and hierarchical inheritance. For more information, see Introduction In

Thanks to the author, reproduced in:http://www.nowamagic.net/librarys/veda/detail/2488The programming paradigm (programming Paradigm) is a typical programming style of a programming language or a

Programming paradigm, Programmer's programming worldview The importance of programming paradigmsOn June 17, 2013 that day has been written 14,796 times to read the Thank you reference or the original server has spent a total of 19.580 MS 2 database queries, and strive to provide you with this page. Try reading mode? I'

Then, prototype can be used to dynamically enhance the object, then some JS primitive class, do not provide the function we want, we can use prototype to enhance it.Here are some specific cases, I hope you can extrapolate:Tail to Empty string.prototype.trim=function () {return this.replace (/^\s+|\s+$/igm, ');}; Alert ("' abc ' length = = =" + ' ABC ');//measure the length of the empty after the alert ("' ABC ' to empty after the length =

4.1. Introduction to object-oriented programmingobject-oriented Programming, or OOP for short, was the dominant programming paradigm these days, having replaced T He "structured," procedural p