phpstorm中完成一键快速注释函数头

先保存函数，再在函数头写/**+enter就行了

/**
 * @param $num1
 * @param $num2
 * @param $opt
 * @return float|int
 */
function calc($num1, $num2, $opt)
{
    switch ($opt) {
        case '+':
            $res = $num1 + $num2;
            break;
        case '-':
            $res = $num1 - $num2;
            break;
        case '*':
            $res = $num1 * $num2;
            break;
        case '/':
            if ($num2 != ) {
                $res = $num1 / $num2;
            } else {
                exit('除数不能为0');
            }
            break;
        case '%':
            $res = $num1 % $num2;
            break;
    }
    return $res;
}

echo "\n";
echo calc(, , '+');
echo "\n";
echo calc(, , '/');
echo "\n";
echo calc(, , '%');