简单计算方法

跳至

<?php
function jisuan($m,$rum,$n){
    switch($rum){
        case &#39;+&#39;:
        echo $r=$m + $n;
        break;
        case "-":
        echo $r=$m - $n;
        break;
        case "*":
        echo $r=$m * $n;
        break;
        case "/":
        echo $r=$m / $n;
        break;
    }   
}
jisuan(1,&#39;+&#39;,3); 
echo "
";
jisuan(2,&#39;*&#39;,5);
echo "
";
jisuan(12,&#39;/&#39;,6);