Home > php教程 > php手册 > body text

(PHP实现)只使用++运算实现加法,减法,乘法,除法

WBOY
Release: 2016-06-13 11:44:52
Original
902 people have browsed it

加法

复制代码 代码如下:


function jiafa($a,$b)
{
 for($i=0;$i {
  $a++;
 }
 return $a;
}
//echo jiafa(4,2);


减法

复制代码 代码如下:


function jianfa($a,$b)
{
 $c=0;
    while($b!=$a)
 {
  $b++;
  $c++;
 }
 echo $c;
} // end func
//jianfa(10,3);


乘法

复制代码 代码如下:


function chengfa($a,$b)
{
 $c=0;
    for($j=0;$j {
  $c=jiafa($c,$a);
 }
 return $c;
} // end func
//chengfa(9,3);


除法

复制代码 代码如下:


function chufa($d,$e)
{
 $k=0;
 $f=0;
    while($f {
  $k++;
  $f=chengfa($e,$k);

 }
 return $k;
} // end func
echo chufa(16,2);


source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template