Question

我在理解以下递归代码时遇到一些麻烦：

  <!DOCTYPE html>
   <html>
       <head>
           <link type='text/css' rel='stylesheet' href='style.css'/>
           <title>More Coin Flips</title>
       </head>
       <body>
       <p>We will keep flipping a coin as long as the result is heads!</p>
       <?php
       $flipCount = 0;
       do {
           $flip = rand(0,1);
           $flipCount ++;
           if ($flip){
               echo "<div class=\"coin\">H</div>";
           }
           else {
               echo "<div class=\"coin\">T</div>";
           }
       } while ($flip);
       $verb = "were";
       $last = "flips";
       if ($flipCount == 1) {
           $verb = "was";
           $last = "flip";
       }
       echo "<p>There {$verb} {$flipCount} {$last}!</p>";
       ?>
       </body>enter code here
   </html>

$flipCount如何获得$flip的数量？我不明白怎么解释呢？

Answer 1

Euh ...因为$flipCount ++，相当于$flipCount = $flipCount +1？

任何人都可以解释$ flipCount如何工作？

1 个答案: