PHP基于工厂模式实现的计算器实例
本文实例讲述了PHP基于工厂模式实现的计算器。分享给大家供大家参考。具体如下：
abstractclassCalculator
{
private$number1;
private$number2;
public$result;
/**
*@returnthe$number2
*/
publicfunctiongetNumber2(){
return$this->number2;
}
/**
*@paramfield_type$number2
*/
publicfunctionsetNumber2($number2){
$this->number2=$number2;
}
/**
*@returnthe$number1
*/
publicfunctiongetNumber1(){
return$this->number1;
}
/**
*@paramfield_type$number1
*/
publicfunctionsetNumber1($number1){
$this->number1=$number1;
}
abstractfunctionget_result();
}
classAddextendsCalculator
{
publicfunctionget_result($number1,$number2)
{
return$number1+$number2;
}
}
classSubextendsCalculator
{
publicfunctionget_result($number1,$number2)
{
return$number1-$number2;
}
}
classMulextendsCalculator
{
publicfunctionget_result($number1,$number2)
{
return$number1*$number2;
}
}
classDivextendsCalculator
{
publicfunctionget_result($number1,$number2)
{
return$number1/$number2;
}
}
classFactory
{
publicfunctionBuilding($notes)
{
if($notes=="+")
{
$add=newAdd();
return$add;
}
elseif($notes=="-")
{
$sub=newSub();
return$sub;
}
elseif($notes=="*")
{
$mul=newMul();
return$mul;
}
else
{
$div=newDiv();
return$div;
}
}
}
希望本文所述对大家的php程序设计有所帮助。